Verithiathe honest score on any app
Updated July 2026 · real, multi-region App Store reviews
Head-to-head

Mailchimp Email Marketing vs Proton Mail

Mailchimp Email Marketing 4.9★ · Free + IAP 70
Winner Tie
Proton Mail 4.7★ · Free to download 65

Mailchimp is better for users focused on email marketing campaigns, while Proton Mail is superior for those prioritizing email privacy and security.

Full reviews: Mailchimp Email Marketing · Proton Mail

Mailchimp excels in campaign management and ease of use for email marketing, despite significant login and app functionality issues. Proton Mail offers strong privacy and security, but users report problems with app performance, basic email features, and limited free storage.

Head to head

Features & Functionality tieR2R5R9R12
Mailchimp Email Marketing Mailchimp users appreciate its ease of use for creating and sending newsletters and managing campaigns on the go R2R5. However, many report significant issues with missing features, such as the inability to delete assets, edit ongoing templates, or change background colors R9R12. The campaign editor is also frequently criticized for being buggy, with issues like the keyboard disappearing, fonts changing randomly, and inability to move or delete sections . Some users on free accounts find the app's interface extremely limited and buggy, making it difficult to use without a desktop R34R43.
Proton Mail Proton Mail is praised for its privacy features and secure correspondence . However, users frequently complain about missing basic features available on the web version, such as search functionality for folders or emails, and the inability to view message HTML and headers . Some users also report issues with email filters not working, notifications not being delivered reliably, and the inability to print emails after updates .
Ease of Use & Reliability tieR4R5R6R8
Mailchimp Email Marketing Mailchimp is generally considered easy to use for adding emails and managing campaigns R5R8. However, a major recurring issue is the inability to log in, especially for users who created accounts with Google Login R4R6R10R16. The app is also criticized for being glitchy, with pages loading slowly, the editor being difficult to use, and some features not working . Recent updates have made the app unusable for many, requiring iOS 17 or later, which locks out users with older devices .
Proton Mail Proton Mail is generally seen as easy and secure to use . However, users frequently report the app freezing up, being slow to load messages, and experiencing significant lag when typing R87R103R104R108. Login issues are also common, with some users unable to access their accounts after updates or password changes . There are also reports of bugs like emails not showing up, incorrect icon badges, and TouchID/FaceID not working consistently .
Price & Value tieR13R29R31R34
Mailchimp Email Marketing Mailchimp offers a free version that many users find amazing and sufficient for small lists or missionary letters R29R59R43. However, paid users express frustration with increasing prices and a lack of new features, considering it overpriced and outdated R13. Some free users find the app's functionality too limited to be useful without a desktop R34R43. There are also complaints about difficulty canceling subscriptions and being forced to pay more R31.
Proton Mail Proton Mail's free plan is often criticized for being a 'bait' with very limited storage (1GB) that quickly fills up, forcing users to pay to continue sending/receiving emails R67R109. Paid users generally find the service valuable for its privacy features , but some express disappointment with the app's performance given the cost R87. There are also reports of accounts being deactivated for unclear reasons, leading to loss of access R75.
Customer Support tieR7R16R75R79
Mailchimp Email Marketing Mailchimp's support is frequently described as horrendous, with users reporting long wait times for responses (up to a week) and receiving canned messages that don't resolve issues R7. Some users are unable to contact support at all due to login problems R16.
Proton Mail Proton Mail users also report poor customer support, with some receiving no response after reaching out R75R79. One user described a lengthy and confusing process to change a password that resulted in their old account being completely deleted .
Pick Mailchimp Email Marketing if

you need a robust email marketing platform for creating and managing campaigns, especially if you value ease of use for newsletter formats and contact management, and are comfortable with potentially using the desktop version for more complex tasks or if you have an up-to-date iOS device R2R5.

Pick Proton Mail if

your primary concern is email privacy and security, and you are willing to tolerate some app performance issues and limited free storage for the peace of mind that comes with encrypted communication .

Evidence note: Both apps have a significant number of negative recent reviews, often highlighting critical bugs and login issues. Mailchimp's negative reviews frequently mention problems with app updates requiring newer iOS versions, while Proton Mail's often focus on app performance, missing basic features, and limitations of the free tier.

Frequently asked

Can I use Mailchimp Email Marketing for free?
Yes, Mailchimp Email Marketing offers a free version that many users find amazing and sufficient for small lists or missionary letters, though some free users find the app's functionality too limited without a desktop R29R34R43R59.
Does Proton Mail have a free plan?
Yes, Proton Mail has a free plan, but it is often criticized for offering very limited storage (1GB) that quickly fills up, forcing users to upgrade to a paid plan to continue sending and receiving emails R67R109.
Are there login issues with Mailchimp Email Marketing?
Yes, many Mailchimp Email Marketing users report significant login issues, especially those who created their accounts using Google Login, as this option is often unavailable in the mobile app R4R6R10R16.
Is Proton Mail slow or glitchy?
Many Proton Mail users report that the app can be slow, freezing up constantly, taking 1-2 minutes for messages to load, and experiencing significant lag when typing in the composer R87R103R104R108.

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. [R2] Mailchimp Email Marketing 5/5 · US Love it: I really do love this newsletter format, its perfect.
  2. [R5] Mailchimp Email Marketing 5/5 · US Easy to use: I love how easy it is to use and add emails
  3. [R9] Mailchimp Email Marketing 3/5 · US Features missing: Cant delete assets. Features missing since latest update.
  4. [R12] Mailchimp Email Marketing 3/5 · US Can’t delete or move sections: I like this app, it has been good for sending out a simple email. I don’t like lack of giving back bug feedback. Currently the app won’t bring up the tab which allows you to move a section up or down, or delete it. You are just stuck. (Please fix this)
  5. [R4] Mailchimp Email Marketing 1/5 · US Never works: Can't get a page with a log-in field. It keeps saying Whoops! Try again. I have tried again vountless times and no option works. Finally deleted it.
  6. [R6] Mailchimp Email Marketing 3/5 · US No Google Login???: Can’t log in because I created my account on desktop with Google login, which does not exist on this app. Can’t add a password on desktop so I can log in on the app. Catch 22 makes this app pointless, for me at least. I’m sure it works great for someone out there that can actually log in.
  7. [R8] Mailchimp Email Marketing 5/5 · US App usage: This app is easy to use
  8. [R13] Mailchimp Email Marketing 1/5 · US Overpriced and outdated: I’ve been using MailChimp since 2014 and their prices keep increasing to the point they haven’t introduced any new additions or features to an already stale platform. Their prices are too unreasonable to keep using them anymore.
  9. [R29] Mailchimp Email Marketing 5/5 · US Perfect: So great to have such a great free product to send our missionary letters with. I’ve never found problems with mail chimp!
  10. [R31] Mailchimp Email Marketing 1/5 · US Junk: Wasted 2 hours of my time attempting to getting it setup. Then when you get upset and decide it’s not for you. They make sure they attempt to confuse you on how to cancel the subscription. So that will frustrate you. Then You find it and they give you a block that asks for your account manager password and a second box it that you would think is the username, but instead they want you to typ
  11. [R34] Mailchimp Email Marketing 1/5 · US Free account and no desktop? Don’t bother.: I have a free account because I have a very small list. I also run my business entirely from my ipad, which is generally not a problem… except for Mailchimp. The browser-based campaign builder doesn’t function properly (can’t drag content blocks into the layout), and the app version doesn’t offer those content blocks at all and has an extremely limited i
  12. [R7] Mailchimp Email Marketing 1/5 · US Used to be decent, no longer works on iOS and support is horrendous: The mobile app worked fine for years, but suddenly stopped working on all my iOS devices. Takes a week to get any response from support and they keep sending out the same canned “turn your device off and turn it on again” messages over and over again. There is literally no support and this is not an inexpensive platform. I am
  13. [R16] Mailchimp Email Marketing 1/5 · US App doesn't work: The app no longer works! I can't login with my username and password anymore. I receive an error and have for months. I'm not able to contact support because that requires me to log into my account. The error code is "Kimp.KimpError error code 10". I keep the app updated but it doesn't even matter. Why am I paying for mailchimp??
  14. [R75] Proton Mail 3/5 · US Deactivated for no reason: This email was deactivated, leaving me without access to social media discord and other logins. Reached out to Support and got no response.
  15. [R79] Proton Mail 1/5 · US shieet: What’s the point of having a customer support if you ain’t going to help 🤣 I’ll switch back to more reliable providers.
  16. [R43] Mailchimp Email Marketing 1/5 · US I normally don’t do this: The mailchimp app doesn’t work on the free account at least I thought o would start free to get a better understanding of how to use the app then upgrade later. Based upon the app continuously loading just to send an email. There was alot of reviews so I thought this was my best choice but I’ve come to the conclusion my best choice is a platform that works.
  17. [R59] Mailchimp Email Marketing 5/5 · US Nothing short of amazing: Truly an amazing experience. So simple to use and utilize! I’ve been using it for 3 months and only been using the free version and it’s nothing short of amazing!
  18. [R67] Proton Mail 1/5 · US Avoid Proton Mail…: They bait you with a basic free plan, so you start using your new email address, only for your storage to immediately become full after a few emails. At that point, you either have to pay or you can no longer send/receive emails & your new email address is now useless. This is by design and not a customer friendly experience. They’re basically trying to strong arm users usi
  19. [R109] Proton Mail 2/5 · US Hmm: You only get 1 gb with free account and sometimes when websites ask me for verification codes proton takes forever to get them and sometimes it doesn’t . I’m deleting account
  20. [R10] Mailchimp Email Marketing 1/5 · US No access to Google Login: I signed up via Google Login, and the app has no access to login via Google so cannot use it. Love mailchimp otherwise, but the app becomes useless without this feature.
  21. [R87] Proton Mail 3/5 · US Slow: I’m giving three stars cause it’s supposed to be secure but it’s taking a min to delete one email and you can’t even sort. I’d like to sort and delete 50 junk mails in 30 Sec. not keep waiting for it to catch up. Tried finding a link to ask support about this but just found unrelated faq. And I pay for this.
  22. [R103] Proton Mail 2/5 · US Phenomenally slow!: I love Proton Mail for its security features, but I find it astonishing that a platform that is so good with security has such gigantic technical glitches in its app. When I get a notification that a new message has arrived, it usually takes 1-2 minutes for the message to load. Sometimes, the message doesn’t load at all. A recent description of the latest updates claimed thi
  23. [R104] Proton Mail 4/5 · US Phenomenal product, suboptimal speeds: I love this service. I'm in the complicated process of de-Google-ing my life and Proton has been incredible so far. My only genuine complaint about their iOS Mail app is that my typing speeds plummet when composing an email in their composer. The keystrokes lag behind my fingers for full seconds; I have to write emails separately in a note, copy, and paste in
  24. [R108] Proton Mail 3/5 · US Freezing up: It freezes up constantly lately. I have to log out and in to beable to use it.

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