Comparison

Cryptomator vs eM Client

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

Head to head
About

Cryptomator

Encrypt your sensitive data stored in cloud services with this open-source tool. It allows you to create secure vaults with passwords, accessible only by you, and integrates seamlessly with your device's file system. Protect your privacy and ensure your data remains confidential.

Highlights
  • Cloud data encryption
  • Password-protected vaults
  • Face ID/Touch ID unlock
  • Files app integration
  • Compatible with major cloud services
  • Open-source software
Features
Read full description

Take the security of your data into your own hands. Cryptomator encrypts your files before they reach the cloud — so only you hold the key. Not your cloud provider, not us, no one. Most cloud providers encrypt your data only during transmission, or they keep the decryption keys themselves — keys that can be stolen, copied, or misused. With Cryptomator, the key to your data stays in your hands. EASY TO USE Cryptomator is a simple tool for digital self-defense. Protect your cloud data yourself, independently. • Assign a password to a folder — we call it a vault. That's all: no key creation, no registration, no configuration • Unlock vaults with Face ID / Touch ID • Fully integrated into the Files app — browse and open your encrypted files right where you already manage them • Everything you save into a vault is encrypted automatically COMPATIBLE Cryptomator works with the most commonly used cloud storages and is available for all major operating systems. • Compatible with iCloud Drive, Dropbox, Google Drive, OneDrive, SharePoint (incl. Microsoft Teams), pCloud, Box, WebDAV- and S3-based cloud storage services • Create vaults in any location via other File Providers (third-party apps must support this) • Access the same vaults across all your mobile devices and computers SECURE & TRUSTWORTHY You don't have to trust Cryptomator blindly, because it is open source software — everyone can see the code: https://github.com/cryptomator/ios • No backdoors and no expiration date, thanks to open source • File content and filename encryption with AES and 256 bit key length • Vault password secured with scrypt for enhanced brute-force resistance • Independently audited by security researchers; crypto implementation publicly documented If someone looks into the folder in your cloud, they cannot draw any conclusions about your data. AWARD-WINNING Cryptomator received the CeBIT Innovation Award 2016 for Usable Security and Privacy. CRYPTOMATOR COMMUNITY Join the Cryptomator Community and participate in the conversations with other Cryptomator users: • Community: https://community.cryptomator.org • Mastodon: @cryptomator@mastodon.online --- Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

eM Client

This app unifies email, calendar, tasks, contacts, and notes into a single, AI-enhanced platform. It offers advanced features typically found on desktop, including instant message translation and robust encryption, for seamless management of multiple accounts on your iPhone and iPad.

Highlights
  • AI-enhanced email drafting and replies
  • Unified inbox for email, calendar, tasks, contacts, and notes
  • Instant message translation
  • PGP and S/MIME encryption
  • Quick import from desktop app
  • Mail-tracking pixel detection
  • Snooze and Undo Send features
Read full description

These features include: • Super easy setup including quick import from the desktop app via QR code • AI Support for replies and email drafting • Emails, calendars, tasks, contacts and notes all in one place • Favorite, Global, and search folders to easily manage multiple accounts • Instant message translation • PGP and S/MIME encryption • Tags and Gmail labels support to sort and color-code your messages • Signatures you can choose from and assign to your accounts • QuickText: snippets of text you can quickly insert into your emails • Templates • Messages grouped into conversations • Advanced privacy options • Mail-Tracking pixel detection • Snooze • Watch for reply • Undo Send • Password protection • Online meetings integration • Cloud storage providers integration • Mobile device management (MDM) support and more

Screenshots

Cryptomator4 screens
eM Client4 screens

Verdict

The call

The clearest difference is rating: Cryptomator at 4.4 against eM Client's 3.7. Cryptomator also leads on ratings volume (438 vs 49). eM Client's advantage is in-app purchases (none vs 5) and update cadence (every 10 days vs every 3 weeks). 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. Cryptomator sells 5 in-app purchases, starting at $9.99 per year. eM Client asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Cryptomator holds the better App Store score, 4.4 against 3.7. That said, the two scores are not equally well evidenced: Cryptomator has 438 ratings behind it against 49, so its average is the more settled of the two.

UpkeepUpdate frequency

Cryptomator ships an update every 3 weeks, eM Client every 10 days. The most recent releases landed on October 23, 2026 and October 22, 2026 respectively.

Scorecard6 real differences · 4 level
Cryptomator versus eM Client: the parameters behind the verdict, then further details
ParameterCryptomatoreM Client
PriceFreeFree
Rating4.4 (438 ratings) — better3.7 (49 ratings)
Positive reviews62.8% of reviews—
Number of ratings438 — better49
Update frequencyEvery 3 weeksEvery 10 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.015.0 — better
Further details — not scored
Size122 MB178 MB
Age rating4+4+
DeveloperSkymatic GmbHeM Client

Customer experience

Cryptomator

All ratings438 ratings
Positive83.3%
Neutral3.0%
Negative13.7%
Written reviews293 reviews
Positive62.8%
Neutral9.2%
Negative28.0%

eM Client

All ratings49 ratings
Positive61.2%
Neutral12.2%
Negative26.5%

User reviews

Cryptomator

From 438 App Store ratings

What we love

  • 🚀 Seamless integration with Files app
  • 🔒 Robust encryption and security
  • 👍 Easy to use and navigate
  • 🚀 Convenient cloud storage access
  • 💡 Useful for privacy-conscious users

Room to improve

  • 🐛 Occasional sync and upload issues
  • 🐛 Compatibility problems with some cloud services
  • 🐛 Unreliable file access and management
  • 🔋 High battery consumption reported

eM Client

From 49 App Store ratings

What we love

  • 🚀 Reliable and customizable
  • 🔒 Great privacy and security features
  • 👍 Clean and intuitive interface
  • 🚀 Smooth and fast performance
  • 👍 Seamless sync between desktop and mobile

Room to improve

  • 🐛 Slow email sync and loading issues
  • 🐛 Unreliable push notifications and badge counts
  • 🐛 Inconsistent behavior compared to other email apps
  • 🐛 Bugs and glitches, especially in the initial release
  • 🔋 High battery consumption

Bugs and requests

Cryptomator

Reported bugs

4 issues
  • Vault password change issues
  • Files disappearing or becoming inaccessible
  • Freezing and crashes on certain devices
  • Compatibility problems with latest iOS versions

Requested features

4 requests
  • Automatic vault locking option
  • Improved search and file management functionality
  • Support for more cloud storage providers
  • Offline file access and editing

eM Client

Reported bugs

4 issues
  • Emails not sending immediately
  • Drafts not visible or editable
  • Inconsistent behavior when switching between folders
  • Trouble signing in to multiple Google accounts

Requested features

6 requests
  • Calendar integration
  • Improved background refresh and sync
  • Custom notification sounds
  • Ability to sort emails by sender
  • More customization options
Show 1 more
  • Actions from notifications (archive, mark as read, etc.)

In-app purchases

5 purchases

Cryptomator

Subscriptions1
  • Full Version$9.991 Year
One-time4
  • 30-Day TrialFree
  • Free UpgradeFree
  • Paid Upgrade$2.99
Show 1 more
  • Full Version$19.99
None

eM Client

No in-app purchases

Questions

Is Cryptomator free?
Cryptomator is free to download, with in-app purchases available.
Is eM Client free?
eM Client is free to download, with no in-app purchases.
Which has better reviews, Cryptomator or eM Client?
Cryptomator is rated higher. Cryptomator averages 4.4 out of 5 from 438 ratings, while eM Client averages 3.7 from 49 ratings.
Do Cryptomator or eM Client have ads?
Neither Cryptomator nor eM Client shows ads.
Which is updated more often, Cryptomator or eM Client?
Cryptomator ships an update every 3 weeks, and eM Client every 10 days. Most recently, Cryptomator was updated on October 23, 2026 and eM Client on October 22, 2026.

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