Spark Mail – Smart Email Inbox 4+

Mailbox organizer & calendar

Readdle Technologies Limited

    • 4.6 • 67.2K Ratings
    • Free
    • Offers In-App Purchases


Spark brings the best email experience for professionals and their teams on iPhone, iPad, Mac, and Windows for free.

"Best of the App Store" – Apple
"It's a combination of polish, simplicity, and depth". – FastCompany
"You can create an email experience that works for you". – TechCrunch

SMART. FOCUSED. EMAIL from Spark helps you to focus on what’s important and ignite your productivity with fewer distractions, better organization and greater control. Bring multiple email accounts together and use Spark’s powerful tools to prioritize, organize and collaborate like never before. Spark provides the free & premium features you need to reclaim your focus.

We built Spark with teamwork in mind. Invite teammates to handle an inbox together, discuss emails privately, and use our real-time editor to compose professional emails.
Download Spark today for a complete set of tools that help organize and prioritize your inbox.

Quickly see what’s important from multiple accounts in one inbox.

Spark pulls personal and high-priority emails to the top of your inbox, so you can focus on them first, while 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 so they feature at the top of your inbox, highlighted for action.
- Group emails from any sender together and they’ll take up only a single row.

- Mark your tasks as Done when they’re complete
- Set Aside emails for a more convenient time to keep your inbox clutter free
- Mute email threads you're not really interested in and archive instantly
- Schedule emails to be sent later - even if your device is turned off
- Seamlessly send files larger than 25 MB through Spark Cloud
- Smart Search using Spark’s natural language search helps you find messages easily
- Quick replies get the point across with just a tap. Love, like or acknowledge an email in an instant

To make everything as safe as possible, we encrypt all your data and rely on the secure cloud infrastructure provided by Google Cloud. Spark is fully GDPR compliant.

Integrate Spark into your existing workflow and take productivity to the next level. Supports Dropbox, Google Drive,OneDrive, Trello, Asana, etc.

A full-featured calendar works in your email. Create events easily using natural language.

- Create a team to unlock advanced team functionality
- Delegate ownership with 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 email or conversation. Share the link on Slack, Skype, CRM etc.

TAKE EMAIL TO A NEW LEVEL WITH SPARK’S FREE FEATURES. Unlock additional tools with our Premium plans. Try all the Premium tools free for 7 days.

• Individual Subscriptions are available to purchase at $59.99/year (the equivalent of just $4.99 a month) or a monthly subscription is $7.99.
• Payment will be charged to your iTunes account within 24 hours before the end of the current period. Auto-renewal may be turned off at any time in your settings in the App Store. Prices are in US dollars, and may vary in countries other than the US, and are subject to change without notice.

Existing customers: If you don’t choose to purchase Spark Premium, you can continue using Spark for free without the Premium features. All features you had previously in Spark remain free forever.

Read more about our Terms of Service and Privacy Policy here:

If you need us, you can always find us at

What’s New

Version 3.2.6

Today’s update brings an extra portion of iOS 16/iPadOS 16 compatibility features apart from the ones already presented in Spark in its previous versions.

*** Use Focus filters to reduce distractions
Hide and mute selected email accounts with Focus in iPhone or iPad Settings.

*** Interact with content in the attachments
Copy text from images, translate languages, make calls, and more.

*** Work faster with Siri Shortcuts
Explore our new pre-made shortcuts or create your own in the Shortcuts app.

We hope you enjoy the update as much as we do.
Keep in touch with us at and stay tuned for news and exciting features.

Ratings and Reviews

4.6 out of 5
67.2K Ratings

67.2K 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.

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.

C.J. Lidmjb ,

BEST mail app, I LOVE it!

As many have stated, I was also a mailbox user and I was very disappointed at the Dropbox decision to drop the best mail app created. I was pleasantly surprised to see this app, but the biggest flaw I have noticed so far is that it cannot open a password protected excel doc. I like the swipes, the signatures, the snooze, the price, the look and feel, most things, but as others have mentioned there are some flaws that need to be addressed. Over the native app it has the snooze which is crucial to me. Please keep making improvements, I've looked though some of the future development and it looks like it is going to be very good, but don't forget about basic email functionality. EDIT: After using spark for awhile now I do like it but it has some really annoying features. For instance, when I download the images of a Google news alert, spark only renders the visible screen and you cannot scroll around to see the rest of the message. I see this with many html messages. This should work as a going in argument when releasing an email app in today's world. EDIT 2: They have fixed the html annoyances, the html rendering is flawless and smooth, it now rotates to landscape & portrait. I LOVE this app. Probably the best mail reader out there, it has surpassed mailbox by far!

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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    Some in‑app purchases, including subscriptions, may be shareable with your family group when Family Sharing is enabled.

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