Spark Mail + AI: Email Inbox 4+

Mailbox for Business & Teams

Readdle Technologies Limited

    • 4.6 • 75K Ratings
    • Free
    • Offers In-App Purchases


Spark +AI mail provides the ultimate email experience for individuals and teams. Manage and organize your personal and business emails more effectively!
Ignite your productivity with fewer distractions, focus on what’s important and get better control of your emails. Connect multiple accounts into one inbox and write emails faster and better using AI email assistant. Spark +AI is the future of email communication!

Our mail app provides an intuitive interface for accessing and managing emails from one inbox. Get all your emails: Gmail, AOL, Yahoo, Hotmail, IMAP, GMX, iCloud in one place without switching between multiple accounts. Prioritize important emails and improve your working efficiency. Stay in control of your mailbox and do more in less time.

Give the context you need and generate responses in seconds with a quick AI email reply option. Let Spark +AI writing assistant improve the quality of your email content by proofreading, fixing grammar and rephrasing them. Compose the perfect email in an instant!

Focus on what’s important, boost your productivity and organize your email workflow. Get personal and high-priority business emails to the top of your inbox, while newsletters and notifications will be grouped below. Streamline your inbox priorities!

We built Spark +AI email with teamwork in mind. Invite teammates to handle an inbox together, discuss emails privately or use the Spark AI assistant to compose professional email responses. Work and be more productive!

- Get multiple accounts in one inbox
- Connect Gmail, AOL, Yahoo, Hotmail, iMAP, GMX and iCloud

- Let Spark +AI write emails for you
- Generate response in seconds with quick AI reply options
- Proofread, adjust the tone, rephrase, expand or shorten the text

- Get personal and high-priority emails to the top of your inbox
- Newsletters and notifications are grouped below

- Pre-screen new senders and decide who is allowed to email you
- Easily block unwanted senders

- Mark senders or emails as important. They will be featured at the top of your inbox
- Group emails together in a single row

- Clean emails and mark tasks as DONE
- Mute threads you're not interested in
- Schedule emails to be sent later
- Send files larger than 25 MB through Spark Cloud
- Find messages easily using Spark’s natural language search
- Quick replies with just a tap
- Love, like or acknowledge mails

- Send encrypted emails
- Encrypt data with secure Google cloud infrastructure
- Spark + AI is fully GDPR compliant

- CREATE A TEAM to unlock advanced team functionality
- SHARED INBOXES - assign emails, track progress and set deadlines
- CREATE EMAILS together in a real-time editor
- DISCUSS EMAILS privately in chat
- CREATE SECURE LINKS to specific emails or conversations
- EMAIL TEMPLATES you can use

Get Spark + AI PREMIUM for the full experience!
• Individual subscription for $59.99/year or $7.99 a month.

Download Spark +AI and manage your email communication more efficiently!

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Privacy Policy
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What’s New

Version 3.9.12

This is just a minor improvement release.
We appreciate your feedback, and please don’t hesitate to contact us at with any questions or suggestions

Ratings and Reviews

4.6 out of 5
75K Ratings

75K Ratings

Editors’ Choice

There’s no avoiding email—as much as we might wish otherwise—but Spark makes tackling an unruly inbox a whole lot more pleasant. The app is an immediate joy to use, thanks to a painless setup process and a sharp, clean layout. But Spark’s true value comes from its clever interface, flexible customisation and the way it bubbles important emails to the top while filtering out the noise. Inbox intimidation is now a thing of the past.

Arclone ,

Want to love it but….

I really, and I mean REALLY want to love this app. On the surface it’s everything you could want in an email client.
Lately however, problems have crept in making it annoying to use, particularly between devices, where if I delete or arrange messages into relevant folders, it’s all cleaned up on one device, but when i switch to say… my phone… all the messages are still there in the inbox. It isn’t until I kill the app and do a pulldown refresh that the state of the inbox is actually refreshed.
On top of that, on any given device at any given time, I’ll check my mail, clean out my inbox and flick the app away, only to discover the red dot with my message count hasn’t updated and it looks like I still have unread messages. To be fair this could just be an issue in ios, but I don’t have this issue with other apps so I dunno.
Today, and what prompted me to finally leave a cautionary review - I actually had to delete and reinstall spark on my ipad to get it to realize i had already read and filed my messages on my phone.
Minor annoyances to be sure, but as Readdle continues on their corporate path of “we can always make it better” - you’re breaking too much. Change is bad, ok. we spend years building email habits and expectations, and believe me, rocking a comfortable boat with more going on under the hood than you can keep working reliably is not the way. NOT THE WAY.

Developer Response ,

Hello! Thank you for taking the time to write a review for us. Please accept our sincere apologies for the issues you’ve faced. We would like the opportunity to investigate your feedback further. Please contact us at and note ‘From App Store’ in a subject, so we will be able to help. Thank you in advance.

PlaSmaK1ng ,

I won’t even lie it’s better than Gmail

So I started using Spark for work as they required me to use it for emails. I eventually ended up leaving that job and I still use spark! It wasn’t Until I got a computer(I only use spark on my phone) and realized that emailing in general just felt so off without spark 🤣. Easy to use, very nice looking, highly accessible and clutter free. I think the main point is how it categorizes everything in a unique way. There is also a “erase page” feature so you can erase every email on a page instead of having to manually click one at a time. It just feels scores more smoother and responsive compared to other emailing services including gmail! I 100% recommend Spark ESPECIALLY if you are in college. God does this app make schooling a lot easier. I also see some reviews about spam being an issue and not being handled properly by the app and from my experience I haven’t had an issue with that but it seems many have so I’m sure it is an issue. I also haven’t had an issue with being logged out randomly or not getting emails. I’ve used it for 2 and a half years so I can’t really say anything on those points and it’s hard to say if it’s actually a spark issue or something wrong with a persons device. I personally have had 0 issues with the app.

App Privacy

The developer, Readdle Technologies Limited, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Linked to You

The following data may be collected and linked to your identity:

  • Contact Info
  • User Content
  • Identifiers

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Usage Data
  • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More


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