Comparison

mail.ee vs Zero

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

mail.ee

A stable and advanced free email application with over 15 years of experience, offering a user-friendly interface, lightning-fast notifications, and robust security features. Manage multiple accounts, send attachments easily, and benefit from high spam protection. Available on iPhone and iPad for convenient mobile access.

Highlights
  • User-friendly interface
  • Lightning notifications
  • Multiple account support
  • Send multiple attachments
  • Undo Delete feature
  • Instant search
  • High spam protection
Features
Read full description

Mail.ee is stable, advanced and powerful free email with more than 15 years of experience and millions of satisfied users. Hosted on own servers in Europe. Now available also on iPhone and iPad to make work even more convenient and mobile. Key Features: • Ergonomic and user-friendly interface - convenient email preview and work with attachments. • Lightning notifications - push notifications so you no longer have to check your mail manually. • Swipe actions - instantly delete emails or mark as unread/read. • Multiple account support - use different email accounts right from the app! • Send multiple attachments - easily add photos and documents to an email, all at once. • Undo Delete - to prevent mistakes. • Search - find your messages faster with instant results. • Save your uncompleted messages to Draft folder and continue later. • Auto-complete contact names - as you type from your Mail.ee contacts or your phone. • On / Off remote images in messages. • High spam protection. • Contacts synchronization. • Secure data storage and sending via SSL. Contact Us: Whether you are experiencing any issues, questions or ideas, please contact us via the "Feedback" form in the app or email feedback@mail.ee. We will do all we can to solve the problem as soon as possible. Rate Us: Special thanks to everyone who rates us 5 stars and provides a warm feedback. It's makes our developers team happier!

About

Zero

This email client is designed for legal professionals to streamline their workflow and increase billable hours. It offers features like predictive filing, inbox sorting, recipient verification, and automatic time tracking for client communications, all while adhering to strict security standards.

Highlights
  • Predictive message filing
  • Inbox sorting by importance/sender
  • Wrong recipient warnings
  • Automatic time tracking
  • On-device AI processing
  • Strict security standards
Features
Read full description

ZERØ’s email client has been engineered to help lawyers work less and bill more. With ZERØ, lawyers can: · Predictively file messages to their document management system or to their corresponding email folders. · Sort their inboxes by parameters such as importance and sender. · Receive a warning in real-time if they are about to send a message to a potential wrong recipient. · Automatically and contemporaneously capture the time spent interacting with client messages from their mobile devices. And as powerful as ZERØ is, the application takes into account the strictest security standards. Our proprietary AI processes data directly on the device—meaning that no user data is ever sent outside of the device for processing. ZERØ also always remains entirely within your law firm’s security perimeter. Using ZERØ, lawyers can be more productive and generate more revenue.

Screenshots

mail.ee4 screens
Zero4 screens

Verdict

The call

The clearest difference is review sentiment: mail.ee at 100% against Zero's 25%. mail.ee also leads on ratings volume (101 vs 3) and update cadence (every 9 days vs monthly). Zero's advantage is in-app purchases (none vs 1) and rating (5.0 vs 4.8). On price, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. mail.ee sells 1 in-app purchase, starting at $1.99 per month. Zero asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Zero holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: mail.ee has 101 ratings behind it against 3, so its average is the more settled of the two. Written reviews complicate that: 100% of mail.ee's written reviews are positive against 25% of Zero's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

mail.ee ships an update every 9 days, Zero monthly. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

Scorecard7 real differences · 3 level
mail.ee versus Zero: the parameters behind the verdict, then further details
Parametermail.eeZero
PriceFreeFree
Rating4.8 (101 ratings)5.0 (3 ratings) — better
Positive reviews100.0% of reviews — better25.0% of reviews
Number of ratings101 — better3
Update frequencyEvery 9 days — betterMonthly
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.0 — better17.0
Further details — not scored
Size22 MB207 MB
Age rating4+17+
Developerinbox.lvAderant Holdings Inc.

Customer experience

mail.ee

All ratings102 ratings
Positive93.1%
Neutral4.9%
Negative2.0%
Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Zero

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive25.0%
Neutral0.0%
Negative75.0%

In-app purchases

1 purchases

mail.ee

Subscriptions1
  • mail.ee Premium Monthly$1.991 Month
None

Zero

No in-app purchases

Questions

Is mail.ee free?
mail.ee is free to download, with in-app purchases available.
Is Zero free?
Zero is free to download, with no in-app purchases.
Which has better reviews, mail.ee or Zero?
Zero is rated higher. mail.ee averages 4.8 out of 5 from 101 ratings, while Zero averages 5.0 from 3 ratings.
Do mail.ee or Zero have ads?
Neither mail.ee nor Zero shows ads.
Which is updated more often, mail.ee or Zero?
mail.ee ships an update every 9 days, and Zero monthly. Most recently, mail.ee was updated on October 26, 2026 and Zero on October 24, 2026.

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