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Updated July 2026 · real, multi-region App Store reviews
Head-to-head

Spark Mail vs Superhuman Mail

Spark Mail 4.6★ · Free + IAP 75
Winner Spark Mail
Superhuman Mail 4.6★ · Free + IAP 65

Spark Mail is a more accessible and feature-rich option for general users, while Superhuman Mail caters to power users who prioritize speed and advanced AI features and are willing to pay a premium.

Full reviews: Spark Mail · Superhuman Mail

Spark Mail offers a broad range of features, including AI assistance and robust organization, but recent updates have introduced performance issues and paywalls for basic functions. Superhuman Mail excels in speed and AI for productivity, though its high price and occasional bugs, especially on mobile, are significant drawbacks.

Head to head

Features & Functionality edge: Spark MailR4R10R11R17
Spark Mail Spark Mail is praised for its organizational tools, such as smart inboxes and the ability to snooze emails, and its AI features for finding emails and drafting responses R11R17. However, users report missing core functionalities like viewing only unread messages or blocking senders behind a paywall R4R21R51. Some users also find the app bloated with AI features that are not always needed or fully functional R10.
Superhuman Mail Superhuman Mail is highly valued for its speed, keyboard-centric workflow, and AI integration, which helps users manage multiple inboxes efficiently and achieve 'inbox zero' . Its AI writing tool is noted for context awareness , and it offers features like scheduling and quick archiving . However, users point out missing features like a unified inbox, the inability to create/edit snippets on mobile, and poor offline use R96.
Ease of Use & User Interface tieR12R26R32R41
Spark Mail Spark Mail is generally considered easy to use and navigate, with a clean layout that helps users quickly scan emails R26R32R41R53. However, some users find the UI can be inconsistent, with issues like difficulty finding folders after reloading the app or an 'atrocious' interface lacking swipe gestures between emails . The addition of AI search bars has also made the interface feel less clean for some R12.
Superhuman Mail Superhuman Mail is praised for its intuitive design, sleek interface, and keyboard-centric approach that makes email management fast and efficient . However, some users find its mobile messaging interface 'horrible' and hard to navigate or reply to emails . The initial onboarding process can also be confusing, with users reporting issues signing in or being required to schedule a consultation .
Reliability & Performance tieR1R7R9R13
Spark Mail Spark Mail has recently faced significant reliability issues, with users reporting the app locking up, getting stuck, or being virtually unusable on newer iPhones R1R7R13R19. Emails often fail to load, scrolling gets stuck, and notifications can be unreliable R9. Dictation features are also noted as buggy and unreliable .
Superhuman Mail Superhuman Mail is generally seen as fast and efficient on desktop , but the mobile app has performance issues, including crashing on iPhone 15 Pro, being slow on Exchange servers, and emails not loading . Users also report bugs with AI scheduling conflicts and the 'recent opens' feature .
Price & Value edge: Spark MailR4R6R18R21
Spark Mail Spark Mail offers a free tier, but many core features, like blocking senders, smart folders, and viewing only unread messages, are paywalled, leading to user frustration R4R6R21. Users question the value of paying for features that are free in other apps R6R18.
Superhuman Mail Superhuman Mail is widely considered very expensive, with users citing prices upwards of $400 per year or $20/month R61R67R73R96. While some users find it 'worth every penny' for the time savings and productivity boost , others feel it's not worth the cost, especially given its bugs and missing features R61R96. There are also reports of misleading billing and difficulty canceling subscriptions R67.
Integrations & Compatibility edge: Spark MailR15R16R53R58
Spark Mail Spark Mail is noted for its ability to connect multiple accounts and sync across devices R53. However, some users find it too Gmail-centric R15, and there are reports of issues with M365 setup R58. The app also explicitly refuses service based on country of residence R16.
Superhuman Mail Superhuman Mail integrates well with Gmail and Outlook and offers good calendar synchronization with Outlook 365 . However, it lacks Apple email support R69R97 and users report issues signing in with Google accounts, getting stuck in loading loops, or having problems with Microsoft Authenticator .
Pick Spark Mail if

Pick Spark Mail if you want a feature-rich email client with good organization and AI assistance, are comfortable with a free tier that has some paywalled features, and prioritize a generally clean and simple user interface R11R26R32R53.

Pick Superhuman Mail if

Pick Superhuman Mail if you are a power user with multiple inboxes, prioritize speed, keyboard shortcuts, and advanced AI features for productivity, and are willing to pay a high subscription fee for these benefits .

Evidence note: Reviews for Spark Mail are more numerous and detailed, covering a wider range of issues and features. Superhuman Mail reviews, while positive for its core value proposition, frequently highlight its high price and initial setup difficulties, which might skew its lifetime rating given the self-selecting nature of paid users.

Frequently asked

Is Spark Mail reliable?
Recent reviews indicate that Spark Mail has become less reliable, with users frequently reporting issues like the app locking up, getting stuck, emails not loading, and notifications failing, especially on newer iPhones R1R7R13R19.
How much does Superhuman Mail cost?
Superhuman Mail is considered very expensive, with users mentioning costs upwards of $400 per year or $20 per month R61R67R73R96.
Does Superhuman Mail support iCloud email?
No, Superhuman Mail does not support Apple iCloud email R69R97.
Are basic features free in Spark Mail?
No, some basic features like blocking senders, setting up smart folders, and viewing only unread messages are paywalled in Spark Mail, which frustrates many users R4R6R21R51.

What reviewers actually said

Built only from these 120 real reviews (foreign ones translated). Superscripts jump to the quote here. Apple has no per-review links, so [ref] opens that app's reviews on the App Store.

  1. [R4] Spark Mail 2/5 · US Missing core functionality: No way to view only unread messages. Feel like that’s a pretty major oversight. This is not something that should be put behind a paywall, that’s just sleazy.
  2. [R10] Spark Mail 2/5 · US Long time user: At this point, this is no longer an email app. It is so bloated with AI slop that I can barely read an email anymore. I will be looking for alternatives, disappointing as I really love supporting this team. But I guess priorities are now on AI and not helping me read and reply to emails.
  3. [R11] Spark Mail 5/5 · US It just gets better: I’ve been using Spark several years now. I started with it because SPAM was out of control and Spark had a positive control over senders feature. Getting through all the senders was a slog but after that 100% control! Then they added AI for finding emails and whatnot. No more am I anxious I cannot find an email. I went from the most disorganized person to the one everyone reli
  4. [R17] Spark Mail 4/5 · US Amazingly helpful: Being someone with executive functioning issues having Spark and especially the AI to help me has made life a little easier. I gave it 4 stars due the price for everything included. As someone waiting for a disability case to be approved it’s hard to afford and I will probably have to find something similar eventually.
  5. [R12] Spark Mail 3/5 · US Great App but.....: This app is great overall. However, I hope the developers remove the AI search bar from the bottom of the IOS app and make it cleaner. I also use a Galaxy as my personal phone, and the Spark app looks much cleaner, especially with the AI search. Please make this change.
  6. [R26] Spark Mail 5/5 · US Great email organizing app!: Spark is my favorite as it is easy to use, is non tech friendly (though very technical and advanced). Thank you!
  7. [R32] Spark Mail 5/5 · US Simplicity: I like the simple format of how the emails are presented. This simplicity allows me to rapidly scan my emails and make rapid judgments about which are important and how to react to each email.
  8. [R41] Spark Mail 5/5 · US Spark is easily the best: Best, easiest to use. Keep up the good work!
  9. [R1] Spark Mail 1/5 · US Locks up and gets stuck every day on brand new iPhone 17 pro max, daily.: I have been using Spark email solely for five years. Locks up and gets stuck every day on brand new iPhone 17 pro max, daily. It started screwing up on my iPhone 13 Pro, this year. It is not much better on my new 17 Pro Max.
  10. [R7] Spark Mail 1/5 · US Was great, now useless: This app used to be an amazing email app now on an iPhone 13 running iOS 26.5 it is virtually unusable. I have uninstalled and reinstalled the app over a dozen times and it’s still only loads about 1/3 of the time. And when it does load it takes 10 times longer than any other app out there ** if you don’t have the absolute newest iPhone, and a ton of patience, you might as
  11. [R9] Spark Mail 3/5 · US Nice most of the time, but attention to detail is lacking: Using spark is a pleasant experience 99% of the time. But there are a lot of bugs and small things that annoy, the app randomly freezes on a white screen, emails aren’t cached and take a while to load, search is noticeably worse quality than Gmail, and emails with wide HTML content can’t be zoomed out or scrolled horizontally. I still use
  12. [R13] Spark Mail 1/5 · US Sub par experience in the last few months: Not sure what happened, but recently that app has been buggy and I keep checking the App Store for updates. Currently, any email that I open has the Accept and Block button overlay gets stuck while scrolling the email, the only way to get out of it is to close the app and reopen. This is extremely frustrating and happens on a regular basis.
  13. [R6] Spark Mail 3/5 · US Paywalled: For trying to set up a Smart Folder, when search folders are free in outlook? Nope. (I’d just use outlook for everything but would like to use a separate app for work and personal)
  14. [R18] Spark Mail 3/5 · US Good, just not quite enough of an improvement: I’m using Apple Mail on MacOS and iOS and been disappointed in the search feature not being consistent and the categorization feature usability lacking. Spark does those things obviously better…just not enough better for paying that much more.
  15. [R21] Spark Mail 3/5 · US Overall this is GREAT!: I have used Spark for almost a decade now. I love everything about it. I will say, I strongly dislike the fact that you have to pay for a subscription in order to block a sender. One of the most basic worldwide email functions is blocked unless you pay a monthly fee. I am considering jumping ship and moving to another email because of this.
  16. [R15] Spark Mail 3/5 · US Back to Apple Mail: 5/8/26 - This app is just too gmail centric, and, Apple mail has grown up a lot, and, no having to jump through 3rd party password hoops. 2015 - I’ve used Airmail for the best part of six years and it just kept getting more and more tedious to work with. So, I went hunting and re-found Spark. If you’re an Airmail refugee and reading this right now, I’d take a good long look at
  17. [R16] Spark Mail 1/5 · US peace in non-politics: This app refuses service based on the user’s country of residence. After installation, I was shown a message stating that services are not provided in Russia and Belarus, and that users from these countries are no longer accepted. I consider this discriminatory and unacceptable for an email service, which should function as a neutral communication tool. If the developers d
  18. [R53] Spark Mail 5/5 · US Hands down the best email client.: I’ve been using Spark for many years across many devices (iPhone, multiple iPads, multiple MacBooks, Mac mini, pc) and it is the most clean and well functioning client. I’ve used both the free and paid tiers and am currently back on free tier which is perfect for a regular person. All your mail is stored on sparks servers and syncs perfectly across devices. The l
  19. [R58] Spark Mail 1/5 · US Not a good match with M365: Setup my M365 account on my iPad and it worked great, when to but when I did my iPhone it would only do IMAP, which is not supported in our account. No clue why this happened. Cancelled trial and deleted on both. Outlook for the win
  20. [R19] Spark Mail 1/5 · US More frequent bugs: Recently, I’ve been encountering a frequent bug my the iPhone 17 app. After opening an email, everything initially loads normally. However, after one or two seconds, the image at the top of the email becomes collapsed or partially hidden. At that point, the entire email becomes unresponsive and I can no longer scroll. The only workaround is to exit back to the email list and
  21. [R61] Superhuman Mail 1/5 · US Greed has reached new heights.: I don’t care how good I’m doing at life. I cannot see myself ever paying upwards of $400 per year just for email. And I don’t expect anything to change just because I’m writing this review, I’m voicing my opinion and voting with my dollars to not do it.
  22. [R67] Superhuman Mail 1/5 · US Scamming users for monthly subscriptions: Unreal that this app has charged me $20/month for 2+ years in spite of my repeated attempts to ensure my subscription has ended. Utterly deranged behavior from the creators of some of the worst, lowest impact ai I've ever used. Just download claude
  23. [R73] Superhuman Mail 1/5 · US Insane 🤯: Pricing is insane. And so is the name.
  24. [R96] Superhuman Mail 3/5 · GB Just fine: It’s just fine, not great. Search is slow and patchy. Offline use is poor. Calendar is bad and no decent support on 365. On the other hand, great for shortcuts and sorting email out quickly. I’m now locked in but if I knew what I know now, wouldn’t pay the $35/month to use it.
  25. [R69] Superhuman Mail 3/5 · US No Apple email support!!!: Do I really need to say more?
  26. [R97] Superhuman Mail 1/5 · US No iCloud Support.: iOS app with no iCloud support in 2025 is crazy.
  27. [R51] Spark Mail 3/5 · US Great Organization, Gotta Pay for Everything Else: This email app is great, especially the layout and organization. However, I hate the fact that you need to pay for yet another subscription to have the ability to block spam emails. For what it is, it's not cheap. The other painfully obvious flaw is the inability to add or create new folders. I think there's a way to do it, but it's buried in the

Synthesized from 120 recent App Store reviews · updated July 2026 · View on the App Store