
Spark - Detailed Review
Productivity Tools

Spark - Product Overview
Primary Function
Spark is designed to help users manage their emails more efficiently by integrating multiple email accounts into a single, unified inbox. It uses AI to prioritize, organize, and streamline email workflows, reducing distractions and increasing focus on important tasks.Target Audience
Spark is best suited for professionals and teams who need to manage multiple email accounts and require advanced features to organize and prioritize their emails. It is particularly useful for those looking to unify their inbox, reduce email clutter, and boost productivity.Key Features
Email Management
- Smart Inbox: Separates priority emails from non-priority ones, pulling personal and high-priority emails to the top of the inbox.
- Unified Inbox: Allows users to manage multiple email accounts from a single inbox.
- Smart Search: Enables users to filter emails using natural language search.
- Newsletters & Notifications: Bundles non-priority emails into separate folders.
Productivity Tools
- Snooze: Sets a time for an email to return to the inbox later.
- Reminders: Adds reminders to prompt follow-ups.
- Send Later: Schedules emails to be delivered at a specified time.
- Labels: Categorizes the inbox into descriptive groups.
AI-Powered Features
- Spark AI: An AI-powered email assistant that helps craft emails faster by rephrasing, correcting grammar, and adjusting tone. It also generates responses and new emails quickly.
Collaboration
- Team Comments: Turns emails into chat with private comments.
- Share Thread: Allows sharing specific emails and threads with team members.
- Shared Templates: Enables creating, using, and sharing email templates with the team.
- Spark Teams: Allows teams to handle an inbox together, discuss emails privately, and use AI to compose professional emails.
Security and Privacy
- Spark ensures security and data privacy by using Google Cloud services for data storage and encryption. It guarantees that user data is not shared with third parties.

Spark - User Interface and Experience
User Interface
Spark’s interface, while an improvement over traditional email clients like Gmail or Outlook, still retains some familiar email elements. However, it lacks the sleek, minimal design of some other modern email apps, such as Superhuman. For instance, emails in Spark can stretch with the screen size, which can sometimes make them harder to read.
The interface is clean and organized, allowing users to manage multiple email accounts from a single, unified inbox. This feature eliminates the need to switch between multiple tabs or apps, making it easier to keep track of all your emails in one place.
Ease of Use
Spark Mail is highly user-friendly, with a minimal learning curve. The onboarding process is straightforward, allowing users to select their preferences and quickly start using the app. The app integrates various tools that help users prioritize and organize their emails efficiently, such as the Smart Inbox, which sorts emails into categories like Personal, Notifications, and Newsletters.
User Experience
The overall user experience of Spark is centered around reducing distractions and increasing productivity. The Home Screen encourages users to set focused email sessions, helping to reduce context switching and promote better email habits. The Smart Inbox 2.0 filters out less important emails, ensuring that personal and high-priority emails are displayed at the top of the inbox.
Spark also includes features like the Gatekeeper, which pre-screens new senders and allows users to block unwanted emails. Other useful tools include the ability to mark emails as “Done” or “Set Aside” for later, and features like “Send Later” and “Reminders” to manage time more effectively.
The AI integration in Spark helps users compose emails faster and better, with options to generate responses, proofread, and rephrase emails. While the AI features are helpful, they are not always used extensively, especially for highly personalized emails.
Security and Privacy
Spark ensures security and data privacy by using Google Cloud services for data storage and encryption, and it does not share user data with third parties.
Conclusion
In summary, Spark offers a user-friendly interface that is easy to use, with a strong focus on productivity and minimizing distractions. Its features are designed to help users manage their emails efficiently and maintain a clutter-free inbox.

Spark - Key Features and Functionality
Spark Mail Overview
Spark Mail, an AI-driven email and calendar app, offers a plethora of features that significantly enhance email management and productivity. Here are the main features and how they work:Smart Inbox
The Smart Inbox feature sorts and categorizes your emails into meaningful groups, separating priority emails from non-priority ones such as newsletters and notifications. This helps you focus on important emails first, reducing clutter and increasing productivity.AI Writing Assistant ( AI)
Spark’s AI Writing Assistant uses AI to generate contextually relevant and professional email responses. You provide a prompt or context, and the AI drafts a reply in seconds. This feature helps overcome writer’s block, saves time, and ensures your responses are polished and professional. You can customize these drafts to fit your unique writing style.Send Later
This feature allows you to schedule emails to be sent at a specific date and time, even if the app is not running on your device. This is useful for timing your emails perfectly, such as sending a follow-up email or a message at a strategic time.Follow-Up Reminders
Spark enables you to set reminders for follow-ups on emails you’ve sent. If you haven’t received a response by the specified date and time, the email will be moved back into your inbox, prompting you to follow up.Snooze Emails
The Snooze feature lets you temporarily remove low-priority emails from your inbox and have them return at a specified time. This helps manage your inbox by dealing with less urgent emails later.Integrations
Spark integrates with various third-party tools and services, allowing you to send emails to these services quickly using swipe gestures. This integration streamlines your workflow by keeping all your tools connected within one app.Quick Replies
Quick Replies allows you to respond to emails with predefined or custom strings and icons, making it easier to acknowledge or respond to emails without typing out a full message.Unified Inbox
Spark allows you to manage multiple email accounts from a single, unified inbox. This feature makes it easier to access, manage, send, or receive emails from different accounts without switching between them.Smart Search
The app features a natural language search function that helps you find specific emails quickly, making it easier to locate important messages.Newsletters & Notifications
Spark bundles non-priority emails like newsletters and notifications into separate folders, keeping your main inbox clutter-free.Block Sender and Mute Threads
You can block unwanted senders and mute email threads that have lost relevance, helping you maintain a clean and focused inbox.Pin and Group Threads
Important emails can be pinned in a location of your choice, and emails from the same thread are kept together, making it easier to follow conversations.Team Collaboration
Spark offers features for team collaboration, including the ability to create teams, share threads, and use private comments. You can also create and share email templates with your team.Split View and Expanded Sidebar
The app includes a split view feature for multitasking, allowing you to reference different emails simultaneously. The expanded sidebar enhances navigation, making it faster and more fluid.Gatekeeper
The Gatekeeper feature pre-screens new senders and allows you to decide who is allowed to email you, helping you block unwanted senders easily.AI Integration
AI is deeply integrated into Spark, particularly through the AI Writing Assistant. This AI analyzes the content of your emails to generate contextually relevant responses, proofreads, and adjusts the tone according to your requirements. The AI also helps in summarizing long threads and suggesting follow-ups, making email management more efficient and professional.Conclusion
These features collectively help users manage their emails more effectively, save time, and maintain a professional tone in their communications.
Spark - Performance and Accuracy
Performance
Spark is generally praised for its simplicity and speed, making it a viable alternative to traditional email clients like Gmail, Outlook, or Apple Mail. Here are some performance highlights and issues:
- Speed and Reliability: Spark is known for its fast and lightweight interface, which makes it efficient for managing multiple email accounts. However, some users have reported that since the update to Spark 3, the app has become slower and more unreliable, with occasional crashes.
- Mobile App: The mobile app is highly regarded for its customization options, such as swipe gestures, and it provides a seamless experience across different devices.
- Loading Times: Spark tends to load faster compared to other email clients, especially in long email threads where other apps might hang or freeze.
Accuracy
Accuracy is another crucial aspect, especially when it comes to AI-driven features and email categorization.
- Email Categorization: Spark’s smart inbox feature categorizes emails into Personal, Notifications, and Newsletters. While this feature is helpful, it sometimes makes mistakes in classifying emails. Users can correct these mistakes, but there is no option to customize these groupings further.
- AI Features: The Spark AI feature helps in composing emails and rephrasing drafts. However, users have noted that the AI responses are not always contextually accurate and can feel quite basic. The AI does not fully capture the tone and context of the entire conversation as effectively as some other premium email clients like Superhuman.
- Read Receipts and Tracking: Spark offers read receipts, which can be helpful but also controversial. This feature tracks when your emails are opened, but some users might find it intrusive.
Limitations and Areas for Improvement
There are several areas where Spark could improve:
- Customization of Categorizations: Users cannot filter the view by message type or customize the categorizations beyond the three predefined types (Personal, Notifications, Newsletters).
- AI Context Understanding: The AI features, while helpful, do not always capture the full context of the email conversation. This can lead to less personalized and less accurate responses.
- Snooze Functionality: The snooze feature is limited to time-based options and lacks location-based snoozing or the ability to snooze emails until they are opened on a specific device.
- Performance Stability: There have been reports of performance issues since the update to Spark 3, including slowness and occasional crashes. Ensuring the stability and performance of the app is crucial.
Conclusion
In summary, Spark is a solid choice for those looking for a simple, fast, and feature-rich email client with some AI-driven capabilities. However, it has room for improvement in terms of customization, AI accuracy, and performance stability.

Spark - Pricing and Plans
Pricing Plans Overview
Spark Mail offers a variety of pricing plans to cater to different user needs, ensuring there is an option for everyone, whether you are an individual or part of a team.Free Plan
The free version of Spark Mail is available for download and use at no cost. This plan includes essential features such as:- Smart Inbox
- Smart Search
- Basic email management tools
- Integration with other productivity apps
- Customizable notifications and email signatures
- Basic team features like shared drafts and private email discussions.
Premium Individual Plan
For individuals who need more advanced features, the Premium Individual plan is available at $4.99 per month or $59.99 per year. This plan includes:- Compose AI, AI Summary, and AI Templates
- Priority Email and Gatekeeper
- Group by Sender and Mute Threads
- Large Attachments and Templates
- Home Screen for Desktop
- Advanced app integrations
- Other focus-enhancing tools like Snooze, Send Later, and Reminders.
Premium Team Plan
For teams requiring advanced collaboration features, the Premium Team plan starts at $6.99 per user per month. This plan includes all the features from the Premium Individual plan, plus:- Shared Inboxes (currently only for Gmail)
- Team calendars and advanced collaboration tools
- Shared Drafts, Shared Templates, and Assignments
- Team File Storage and Team Administration
- Email sharing with secure links and Read Statuses.
Trial Period
Spark offers a 7-day free trial for the Premium plans. If you need to extend or reschedule the trial, you can contact the support team.Subscription Management
Subscriptions can be managed directly through the Spark app. For individual subscriptions, go to Settings -> Spark Account -> Manage. For team subscriptions, go to Settings -> Teams -> Manage Team -> Billing.Cross-Platform Compatibility
Spark Premium subscriptions are valid across all devices where Spark is installed, including iOS, Android, Mac, and Windows. This structure ensures that users can choose a plan that fits their specific needs and budget, whether they are looking for basic email management or advanced team collaboration tools.
Spark - Integration and Compatibility
Spark: An Overview
Spark, a versatile and AI-driven email client, offers extensive integration capabilities with various productivity tools, ensuring a seamless workflow across multiple platforms and devices.
Integrations with Productivity Tools
Spark integrates with a wide range of popular productivity and project management tools. Here are some of the key integrations:
- Task Management: You can turn emails into tasks directly within Spark using integrations with Asana, Todoist, Trello, MeisterTask, OmniFocus, Things, 2Do, and TickTick.
- Note-taking: Spark allows you to convert emails into notes for apps like Evernote, OneNote, Bear, and Agenda.
- Cloud Storage: You can export emails and attachments to cloud storage services such as Google Drive, Dropbox, OneDrive, and Box.
- Calendar and Meetings: Spark supports integration with calendars and video meeting tools like Google Meet, Zoom, and GoToMeeting, enabling you to jump into video calls directly from the app.
- Reminders: It also integrates with Apple’s Reminders and other task management apps to keep your tasks synchronized.
Platform Compatibility
Spark is available on multiple platforms, ensuring you can access your emails and integrations across different devices:
- macOS: Spark supports integrations with Asana, Agenda, Bear, Evernote, MeisterTask, Reminders, OmniFocus, Things, 2Do, TickTick, Todoist, OneNote, and Trello on Mac OS devices.
- Windows: On Windows, Spark integrates with Todoist, TickTick, Evernote, OneNote, MeisterTask, Asana, and Trello. It requires Windows version 10 or later.
- iOS: The iOS version supports all the integrations available on macOS, plus additional ones like Google Drive, OneDrive, Dropbox, Box, Files, Zoom, GoTo, Pocket, and Instapaper.
- Android: On Android, Spark integrates with Trello, TickTick, Asana, OneNote, MeisterTask, Evernote, Todoist, Instapaper, and Pocket.
Syncing Across Devices
Spark ensures a seamless experience by allowing you to sync your accounts and preferences across multiple devices. When you log in with your primary email address (the “email for sync”), all your email accounts and settings are automatically synced. This feature makes it easy to manage your emails and integrations consistently across different devices.
AI-Driven Features
In addition to its integrations, Spark also offers AI-powered features, such as Spark AI, which helps with composing emails and rephrasing drafts. This feature is part of the Spark Premium subscription and aims to enhance your email productivity and communication efficiency.
Conclusion
Overall, Spark’s comprehensive integration capabilities and cross-platform compatibility make it a versatile tool for managing your emails and enhancing your productivity workflow.

Spark - Customer Support and Resources
Contacting Customer Support
For issues such as being unable to send emails, you can contact Spark’s Customer Support team directly. Here’s how you can do it:
- Go to the Contact Us page on the Spark website.
- Select “Something doesn’t work” and then “Sending Emails.”
- Describe the issue in detail, including the email account you are using and the subject of the email that cannot be sent.
- Click “Send” to submit your query, and the support team will get back to you soon.
Troubleshooting Guides
Spark provides a comprehensive troubleshooting section on their website. This includes guides on common issues such as:
- Connecting your email account to Spark, including specific steps for different email providers like Gmail, iCloud, and Exchange accounts.
- Resolving network-related issues, such as checking your internet connection and VPN usage.
- Fixing display issues with emails, like links not working or attachments not displaying correctly.
Detailed Logging
If you encounter an issue that isn’t resolved by the general troubleshooting steps, you can enable detailed logging in Spark. This helps the support team investigate the problem more effectively. To do this, go to Spark Settings, click on Support, and enable the Detailed Logging toggle.
Additional Resources
Spark offers various features and tools that can enhance your email experience:
- AI-Powered Email Assistant: Spark AI, available with Spark Premium, helps you craft emails quickly by rephrasing, correcting grammar, and adjusting tone.
- Email Templates: You can build and organize email templates with placeholders for repetitive emails, saving you time and effort.
- Scheduled Sending: You can schedule emails to be sent at a specified date and time, which is useful for maintaining a work-life balance and coordinating with global teams.
- Integration with Cloud Services: Spark allows you to save files to the cloud or attach them to your emails from services like Dropbox, Box, iCloud Drive, OneDrive, and Google Drive.
These resources and support options are designed to help you resolve issues quickly and make the most out of Spark Mail’s features.

Spark - Pros and Cons
Advantages of Spark Mail
Speed and Performance
Spark Mail is known for its lightning-fast loading times and instant notifications, making it a significant improvement over other email clients like Apple Mail.
User Interface
The app boasts a sleek, modern, and easy-to-navigate UI, which many users find visually appealing and user-friendly.
Customer Support
Spark Mail offers highly responsive and helpful customer support, which is a major plus for users encountering issues.
Feature-Rich
The free version of Spark Mail is packed with features such as smart inbox organization, email scheduling, snoozing, and collaborative inboxes. These features make it an ideal choice for many users.
AI-Powered Tools
Spark Mail integrates AI through its Spark AI feature, which helps in composing emails, rephrasing drafts, generating quick replies, and summarizing large email threads. This significantly enhances productivity and reduces the time spent on email tasks.
Spam Control
The Gatekeeper feature actively prevents spam by prompting users to accept or block new senders, providing more control over email security.
Team Collaboration
Spark Mail allows teams to collaborate on emails effectively, making it a great option for businesses and organizations.
Cross-Platform Compatibility
The app offers excellent compatibility and synchronization across different platforms, ensuring a seamless experience regardless of the device used.
Disadvantages of Spark Mail
Crashes and Performance Issues
Some users have reported that Spark Mail can crash unexpectedly, especially after intense use, and there have been complaints about the app becoming slower and more unreliable since the update to Spark 3.
Workflow Disruptions
For some users, the introduction of new features like the “Done” feature can disrupt their established email workflow. For example, the “Archive” shortcut cannot be customized, which can add extra steps to archiving emails.
Customization Limitations
While many shortcuts can be customized, there are limitations, such as the inability to modify the “Archive” shortcut, which can be frustrating for some users.
UI Polarization
The user interface of Spark Mail can be polarizing, with some users loving it and others finding it off-putting. This includes dissatisfaction with UI changes in the latest version.
Security Concerns
As with any third-party email client, there are potential security risks involved, although Spark Mail’s policies are not substantially different from other third-party clients.
Cost
Many of the innovative and useful features are available only in the premium version, which can be a significant obstacle for users who are not willing to pay for the subscription.
Classification Mistakes
Spark Mail sometimes makes mistakes in classifying emails into categories like notifications and newsletters, although these can be easily corrected by the user.
By weighing these pros and cons, users can make an informed decision about whether Spark Mail aligns with their email management needs and preferences.

Spark - Comparison with Competitors
Unique Features of Spark Mail
Spark Mail offers a range of features that help users focus, prioritize, and organize their emails effectively. Here are some of its key features:Smart Inbox
Separates priority emails from non-priority ones, helping users focus on what’s important.
Unified Inbox
Allows users to manage multiple email accounts from a single inbox.
Smart Search
Uses natural language search to filter emails.
Newsletters & Notifications
Bundles non-priority emails into separate folders.
Snooze, Reminders, and Send Later
Features that help manage email timing and follow-ups.
Labels and Collaboration Tools
Includes features like team comments, shared threads, and shared templates for team collaboration.
Comparison with Superhuman
Superhuman is a premium email client that offers several advanced features:Design and Interface
Superhuman has a more minimal and visually appealing design, with automatic resizing of emails for better readability. In contrast, Spark’s interface, while better than Gmail or Outlook, still feels more traditional.
AI Capabilities
Superhuman’s AI can write emails in your tone based on previous emails and allows for more natural language input when snoozing emails. Spark also uses AI for summarizing and responding to emails, but with more limited natural language options.
Customization
Superhuman allows deeper customization, such as categorizing emails based on user preferences, whereas Spark categorizes emails based on people, newsletters, and notifications.
Comparison with Spike Mail
Spike Mail is another alternative that offers a distinct email experience:Chat-like Interface
Spike Mail mimics chat and messaging apps like WhatsApp and Slack, making email interactions feel more like messaging conversations.
Additional Features
Spike integrates document management, to-dos, and collaboration tools, including video and voice meetings. This makes it more suitable for small teams looking to streamline both internal and external communications.
Cost
Spike is more expensive than Spark Mail, especially for its advanced collaborative features.
Comparison with Notion
While Notion is not strictly an email client, it can be used in conjunction with email tools for enhanced productivity:Information Repository
Notion serves as a comprehensive information repository, allowing users to organize their entire workflow within a single platform. It includes AI features for generating text, autofilling databases, and summarizing documents.
AI Integration
Notion’s AI can answer specific questions about stored information, making it a valuable tool for documentation and project management.
Other Alternatives
Neo
Offers a simpler and more affordable alternative to Spark Mail, with a focus on a more straightforward email experience.
Todoist AI Assistant
While not an email client, Todoist’s AI Assistant can help manage tasks and integrate with email workflows, providing tips and breaking down tasks into smaller ones.
In summary, Spark Mail stands out with its unified inbox, smart search, and collaboration features, making it a strong choice for those seeking a free or low-cost email client with advanced features. However, for those willing to invest in a premium product, Superhuman offers more sophisticated AI capabilities and a more polished interface. Spike Mail is ideal for teams needing integrated document management and collaboration tools, and Notion can be a powerful companion for overall workflow organization.

Spark - Frequently Asked Questions
Frequently Asked Questions about Spark
What is Spark and what does it do?
Spark is an AI-powered email and calendar app that helps individuals and teams manage their emails and calendars more effectively. It allows you to connect multiple email accounts into one unified inbox, write emails faster with AI assistance, and prioritize important emails.How does Spark AI help with email writing?
Spark AI is an AI-powered email assistant that helps you compose emails and rephrase drafts quickly. It generates personalized email drafts based on the context you provide, allows you to adjust the tone, rephrase, and proofread the text. This feature is designed to save time and boost productivity by removing writer’s block and minimizing mental effort.Can I manage multiple email accounts with Spark?
Yes, Spark allows you to manage multiple email accounts from one mailbox. You can connect accounts from Gmail, AOL, Yahoo, Hotmail, iMAP, GMX, iCloud, and other personal and business email services into a single, unified inbox.How does Spark prioritize and organize emails?
Spark uses a Smart Inbox feature that separates priority emails from non-priority ones, pulling personal and high-priority business emails to the top of your inbox. It also groups newsletters and notifications into separate folders, helping you focus on what’s important.What security and privacy measures does Spark offer?
Spark ensures security and data privacy by storing data through Google Cloud services, which includes encryption. Your data is used solely for product optimization and is never shared with third parties. Additionally, Spark is fully GDPR compliant.Can I use Spark for team collaboration?
Yes, Spark offers features for team collaboration. You can create a team to handle an inbox together, discuss business emails privately, use an AI email editor to compose professional emails, and assign emails, track progress, and set deadlines. Spark also allows you to create and share email templates with your team.How does the Gatekeeper feature work in Spark?
The Gatekeeper feature in Spark allows you to pre-screen new senders and decide who is allowed to email you. You can easily block unwanted senders and prioritize important emails and senders, ensuring that only relevant emails reach your inbox.What are some of the additional productivity features in Spark?
Spark offers several productivity features such as the ability to mute email threads, schedule emails to be sent later, send files larger than 25 MB through Spark Cloud, and use natural language search to find messages easily. You can also set reminders, snooze emails, and categorize your inbox into descriptive groups using labels.Is Spark available for free, or are there any subscription plans?
Spark offers a free version, but some advanced features, including Spark AI, are available as part of the Spark Premium subscription. This subscription includes other powerful tools like Priority Emails, Gatekeeper, and more.How does Spark integrate with other tools and apps?
Spark integrates with other apps and tools to create a cohesive and interconnected workflow. It supports integrations with Google Meet and Zoom for easy meeting planning and works in harmony with your favorite tools to enhance your productivity.What is the Inbox Zero approach in Spark?
Spark follows the Inbox Zero philosophy, which aims to minimize the stress and clutter associated with a crowded inbox. Features like ‘Mark as Done’ and ‘Set Aside’ help you achieve a clean inbox, transforming the way you approach email management.
Spark - Conclusion and Recommendation
Final Assessment of Spark in the Productivity Tools AI-Driven Product Category
Spark is a highly versatile and feature-rich email client that leverages AI to significantly enhance email productivity. Here’s a breakdown of its key features and who would benefit most from using it.Key Features
Smart Inbox
Spark automatically categorizes emails into Personal, Notifications, and Newsletters, ensuring that high-priority emails are at the top of your inbox.
Smart Search
Users can quickly find any email using natural language search, making it easier to locate specific emails without wasting time.
Snooze Emails
This feature allows you to temporarily remove emails from your inbox and have them reappear at a specified time, helping to keep your inbox clutter-free.
Send Later
You can schedule emails to be sent at a later time, which is particularly useful for maintaining a work-life balance and optimizing response times across different time zones.
Gatekeeper
This feature pre-screens new senders, giving you the option to accept or block future emails from them, helping to filter out unwanted emails.
AI-Powered Email Assistant
Spark AI helps in composing emails and rephrasing drafts, saving time and reducing writer’s block. It generates personalized drafts based on the context provided, but always allows you to review and revise before sending.
Who Would Benefit Most
Spark is particularly beneficial for professionals and teams who manage multiple email accounts and need to prioritize their email communications. Here are some groups that would find Spark especially useful:Business Professionals
Those who receive a high volume of emails and need to focus on priority messages will appreciate the Smart Inbox and Gatekeeper features.
Team Collaborators
Features like Private Team Comments, Shared Drafts, and Reply with Templates make it easier for teams to communicate and collaborate efficiently.
Remote Workers
The ability to manage multiple email accounts in one place, schedule emails, and set reminders helps remote workers stay organized and productive across different time zones.