Spark Mail + AI: Email Inbox 4+

Mailbox for Business & Teams

Readdle Technologies Limited

    • 4.6 • 12.6K 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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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
12.6K Ratings

12.6K Ratings

Editors’ Notes

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.

JacksSpot ,

Calmed my neurodiverse and PTSD brain

I have previously found managing my emails to be incredibly stressful and it could take me an hour just to wade through and then longer to reply so basically all morning….and I don’t work because of my health, so it’s not like I’m having to deal with colleagues or clients emails. Spark has taken away that stress. It really helps sort the wheat from the chaff so that I am then directed to the emails I need or want to respond first and can then look at the rest later if I want to.

The AI feature for responding to emails has also been very useful. My ADHD makes me very “wordy”, and this helps me keep my responses to the point and saves me a lot of time into the bargain.

I have previously been reluctant to pay for an email platform, because it’s just for personal use. Yet Spark has made dealing with my emails so much more simpler and therefor less stressful that in my opinion it is definitely worth the money. For those on a strict budget there is a pay monthly plan which although more expensive than the annual plan perhaps makes it more “affordable”.

Developer Response ,

Hi, thank you so much for your amazing 5-star review! We're thrilled to hear that Spark has made managing your emails much less stressful and time-consuming. It`s a pleasure to hear that the +AI feature has been helpful in keeping your responses concise and efficient. We appreciate your support and hope you continue to enjoy using our app!

DamienButt ,

Great initially. But just too slow!

When I started using Spark I thought it was great. Refreshing and enjoyable user experience. Unfortunately I have now binned this app off as for me, as a heavy email user, the app has just become borderline unusable. Emails are slow to arrive, and ridiculously slow to load. I simply don't have the time or patience to wait 10 mins to read an email. The desktop app also has this really annoying thing where it wants to sync the database right as you need to quite the app, sometimes hindering restart or shut down times. It is also slow to receive and load emails too. So I have also binned the desktop app off as well. I reached out to the Readle team via email to ask them to fix the issues, as I really do like the interface and ideally I would have liked to continue using the app. But I had no response which indicates to me that they are not over bothered in fixing the problems. Updates comes through but they seem more interested in adding new features rather than fixing core issues to make the app actually work in a robust manner. It's just become extremely unproductive to use. I have moved back to Outlook as it exhibits none of the issues above and work flawlessly. Mail also works absolutely fine but I prefer Outlook. At this current point in time I could not recommend this app sadly.

Developer Response ,

Hi Damien, thank you so much for your feedback. I'm sorry to hear about your disappointment and the issues you faced with the app. Our team implemented a lot of improvements into the latest versions and keeps working to make your experience with Spark flawless. Stay tuned and feel free to drop us a line at if you need any help. Best wishes, Anastasiia.

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 based on, for example, the features you use or your age. Learn More


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