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.

**Dark Mode**
We've carefully selected the colors to help you work better at night and save battery life. Select the Dark or a truly Black mode in Personalization settings > Appearance. It’s available for all iOS Spark users.

**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 2.9.22

Much of the work in today’s update was focused on a deep dive into the internal stability and improvements to your Spark experience.
Get your picnic blanket ready and enjoy the spring!

If you need us, you can always find us at

Ratings and Reviews

4.6 out of 5
9.1K Ratings

9.1K Ratings

Medster777 ,

Great email app ... Could be the best personal assistant app


Please can you add functionality so that inbox subfolders may be created and managed using the app rather than only via the web platform.

Please can you add functionality in the next update such that different email accounts can be assigned different sounds in respect of their new message alerts.


I have tested this app out by using it in parallel with iOS mail and Gmail apps. I have now deleted the other two apps and Spark has replaced them as my sole email app. I am really very pleased with it.

It is a really smart app with slick functionality. For example swiping between different email signatures is a nice touch.

Clearly the calendar function is not the focus of this app's expertise but I wasn't expecting it to be. I have deactivated the calendar.

My go to is 24me app which is in the same league as Spark but focused on calendar, tasks and notes functionalities. In my opinion also the best at what it does on the market.

Spark is the best email app on the market at the moment for sure. If it merged with 24me/exceeded 24me in functionality then it would be by far the best (and I would wager only comprehensive) personal assistant app out there - and that I would pay money for.

Well done developers this is a good app. I hope you will take my suggestion under consideration for the future. I really think it has potential to be a great all in personal assistant app.

AlainnDiagha ,

Used for 2 years

I used this for 2 years. I found support quite good and prompt. It had nice features including the ability to swipe and delete in one motion. I have left it for Apple Mail which doesn’t offer as simple a swipe delete - you have to swipe then tap. Why? Three very important things that Spark fails in. And support has said they won’t be looking at. Firstly, it seems you can only forward one email at a time. This is infuriating as I need to forward maybe a batch of 20 to people every day. Secondly, If you forward an email you lose the original email in its original location and if you want to find it again you then need to know maybe 3 years later not when you originally sent it but who got it forwarded to them maybe 18 months after that. In my case, this is an impossible task, as I’m forwarding all the time. Thirdly, and this is the worst of all - you can only see emails by thread. I detest this. I can never find what I’m looking for. Some people reply with your thread showing too and some don’t. Then you end up scrolling through 20 pages looking for something you said that maybe hasn’t been dealt with yet in subsequent emails. So although I like its swipes, appearance, and quick replies, it’s unusable. Apple Mail could do so much more to update its email app and I don’t know why it never has, but it does offer batch forward, it does allow me to find forwarded emails because it doesn’t organise by conversation unless you want it to.

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.

App Privacy

The developer, Readdle Inc., 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


  • Wallet

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  • Family Sharing

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

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