Spark is the best personal email client and a revolutionary email for teams. You will love your email again!

"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

**Beautiful and Intelligent Email App**
We are building the future of email. Modern design, fast, intuitive, collaborative, seeing what’s important, automation and truly personal experience that you love - this is what Spark stands for.

**Farewell to Busy Inbox**
Smart Inbox lets you quickly see what's important in your inbox and clean up the rest. All new emails are smartly categorized into Personal, Notifications and Newsletters.

**Discuss email privately**
Invite teammates to discuss specific emails and threads. Ask questions, get answers, and keep everyone in the loop.

**Create email together**
For the first time ever, collaborate with your teammates using real-time editor to compose professional emails.

**Schedule emails to be sent later**
Schedule emails to be sent when your recipient is most likely to read them. It works even if your device is turned off.

**Snooze That One For Later**
Snooze an email and get back to it when the time is right. Snoozing works across all your Apple devices.

**Find Any Email In An Instant**
Powerful, natural language search makes it easy to find that email you're looking for. Just search the way you think and let Spark do the rest.

**Get Notified About Important Emails Only**
Smart Notifications filter out the noise, letting you know when an email is important, saving you from notification overload.

**Powerful Integrations**
Integrate Spark into your workflow and take productivity to the next level. Supports Dropbox, Box, iCloud Drive, and more.

**Built-in calendar**
A full-featured calendar works right in your email to help you always be on top of your schedule. Create events easily using natural language.

**Create links to email**
Create secure links to a specific email or conversation. Share the link on Slack, Skype, CRM, or any other medium so your team can see it and collaborate around it.

**Sign Off With A Swipe**
Before you send an email, quickly swipe to choose the right signature for the occasion.

**Email with Emotion**
Quick Replies get the point across with just a tap. Love, like or acknowledge an email in an instant.

**Email Never Looked This Good**
That terrible mess in your inbox is now replaced it with a beautiful, threaded message design.

**A Truly Personal Experience**
Customize Spark to work as you do. You decide which swipes do what, what cards are shown, and how many emails you want to see.
You’ll love your email again!

If you need us, you can always find us at

What’s New

Version 2.3.3

Hello folks!
Today’s update is all about new features and a number of "quality of life" improvements.
## NEW
- Added Strikethrough feature in the email composer. Finally!
- Added tooltips with shortcuts for all options in the email thread view and email composer.
- Starting today you can tell the world that you've reached Inbox Zero in Spark by tweeting the screen of your empty Inbox with a hashtag: Loving my #inboxzero with Spark
Just give it a try!

Thank you to everyone who got in touch at and let us know these features were important to them. We really appreciate it.

Ratings and Reviews

4.8 out of 5
2.4K Ratings

2.4K Ratings

Murdoc2k ,

Super update!

This update has been one of the most defining updates for Spark. Up until version 1.4, it would take a while for spark to finish syncing when I quit the app. The launch times were not exceptional and search was improved, but still slow. Prior to version 1.4, the app was filled with memory leaks and consumed large amounts of CPU resources. It was an app with potential, but needed significant improvements.

In this version, a significant faster launch and shutdown time was noticed! The searches are faster and usuable. I also like the introduction of intergration with other apps as I am a user of a “todo list” app that greatly benefits from this new feature.

Keep up the great work!

F. Meilleur ,

Great but...

Short version :

Love the app :
- Run smoothly
- Easy to setup & use
- The similarities of the macOS & iOS app

But :
- Colour coding of different account is discreet/hard to see in macOS, non-existing in iOS

And mainly for that, I’ll remain with Airmail for the time being. Hope to see this feature better implemented & transferred in iOS.

In the mean time, keep the good work up, for a free email client app, you’ve got something pretty solid already.


Long version :

I must say that I love the app when I tried it. Smooth, easy to use and most of the desktop features follow to the iOS app. One feature, that would have made me completly switch from Airmail, is the account colours. I juggle multiple account for different work field and I’m able to have them all differentyl colour coded in Airmail, allowing me to easily identify from which client/business it’s associated with without dealing with smart/specific folders to go in and out of.

I know it’s feasible in the desktop app, although,the colour marker is quite discreet, but it doesn’t translate in the iOS app. Or at least, I haven’t found the option for it within the small group of option for customization.

There are, of course, other factor that kept me in airmail, but I loved my experience in Spark and hope to see the needed change happen to win me over.

yourstrulytula ,

Sign in Issue

I love using this app for my emails. I have different accounts for school and work, so the app keeps them organized. However, just a few minutes ago the app has been showing me signs of error of sign in. I’m not sure what’s going on as I’ve tried to log in numerous of times, and it still shows an 'Authentication Error’. Is anyone else having this issue?


Readdle Inc.
53.4 MB

macOS 10.13 or later, 64-bit processor


English, French, German, Italian, Japanese, Portuguese, Russian, Simplified Chinese, Spanish

Age Rating
Rated 4+
© 2015 - 2016 Readdle Inc.


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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