Readdle, the company behind Spark, turns 10! Learn more about our 10-year story at

**Beautiful and Intelligent Email App**
Email has taken too much time from people. Spark gives time back to all those who live by their inbox. Quickly see what’s important and clean up the rest.

"Best of 2016" - Apple
"The best email app on iOS just got a desktop version" - TheNextWeb
"It's a combination of polish, simplicity, and depth" - FastCompany
"You can create an email experience that works for you" - TechCrunch

**Farewell to Busy Inbox**
Smart Inbox intelligently bubbles what matters to the top

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.

**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.

Tip: Teach Spark about that newsletter you just can't miss, and you'll get a notification every time it arrives. Spark learns as you email.

**Calendar Invites Can Be Beautiful**
Your calendar invites have their own, beautiful card with one-tap accept. See if you want to accept it right from your email.

**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 "forward" and quote 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.

**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.

**Connected To All Your Tools**
Integrate Spark into your workflow and take productivity to the next level. Supports Dropbox, Box, iCloud Drive, and more.

Spark works with any email address. Love your email again!

What's New

Version 1.5.9

Spring has finally arrived at our office along with a new sequence of powerful updates for Spark!
This time we bring you a few internal bug fixes and improvements, especially the fix for AOL sign-in issue.

Great features are coming soon! Stay tuned!
If you need us sooner, drop us a line at

Ratings and Reviews

4.7 out of 5

3.9K Ratings

3.9K Ratings

Getting Closer To Being “Just Right…."

The Builder....

Well…. I’ve now been using Spark for Mac since it first came forth on the Mac several months ago. Spark continues to be very stable and useful. And now, with the color categorization of email accounts, and the addition of the Send Later & Reminders feature, it makes the app even more useful. Also, you have the flexibility of changing your keyboard shortcuts to one key in many instances, which has proven to be very, very useful. Now, I will admit: For now, I’m still using Airmail because they have Read Receipts, so once Readdle initiates that feature, I KNOW I’ll be switching over to Spark for good.

Secondly (and this one puts Spark above all the rest): The biggest reason why I’m using Spark is because I’m not receiving notifications of every single email that comes my way!!! The makers of Spark have found some kind of way to only notify you of emails that come from REAL PEOPLE, which has proven to be a serious help during the day! So, when a REAL PERSON sends me an email, I get notified about it, while all the other emails just come forth into the app in the form of notifications or newsletters (important tip: Be sure to set the “Application Badge” to “Whole Inbox” so you can see that you have received the other emails).

All in all, this is a very, very good app. All they need is Read Receipts, and we’ll be home free!!

Continual Improvement


I’ve tried many different e-mail programs and I’m very happy with Spark. I needed something which would work offline, Mac Mail is too limited, Postbox didn’t have some features I wanted. After using Postbox for about 1 year I happily switched to Spark a year ago and I really enjoy the Schedule Later feature to send email within office hours when I write messages outside of office hours. I also like the Snooze, to make sure messages don’t get lost in the Inbox and finally the Remind Me feature is absolutely a saver. I don’t have to use a to-do or some sort of reminder, it lets me know if an important message was responded to in a time frame I set.

Many of these features are available on the Google Mail web client, but I am often not connected to the internet, so Spark works great.

Four stars instead of Five? Lately there is a delay when writing emails or switching to the app. The colorful (dreaded) Mac pinwheel spins for what feels like too long, sometimes in the middle of writing a message. I have plenty of RAM, HD space, update OS, so I’m not sure what’s causing this. However, the Spark team has been good at updates and improvements to I’ll wait this out for a while.

Really good client, still waiting on some features


Overall, Spark is excellent. Organization of emails and the Smart Inbox are incredible. The search is more powerful than any other client I’ve used. It has swipe customization and the smart inbox groupings make it easy to archive a pile of emails in a second.

There are a few things I’m still waiting on though. One is the actual mail pane. This is where Spark actually loses functionality rather than simply leaving out some luxuries. It needs some work. Scrolling and zooming are rather buggy. With Spark, I don’t need to open half of my emails, but the ones I do are rather difficult to work with at times, especially on my smaller laptop screen where I don’t want to expand the pane.

The other features are all regarding continuity. Spark for iOS is pretty great too, but the apps are inconsistent with eachother. Search history isn’t synced between apps and the iOS version doesn’t have a “recently seen” tab at all, so I defintely can’t quickly bring up an email that I just saw and archived from my phone. The appearence is also pretty different. Seeing the two apps work together a bit more would be excellent.


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


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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