Comparison

Tresorit vs Sync

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

Head to head
About

Tresorit

Securely store, sync, and share files with end-to-end encryption. Protect your photos, memos, and team documents with zero-knowledge standards, ensuring only you and authorized users can access your data. Manage permissions and share links for secure collaboration.

Highlights
  • End-to-end encrypted file sync
  • Secure file sharing
  • Create shared folders
  • Encrypted camera upload
  • Manage file permissions
  • Offline file access
  • 2-factor authentication
Features
Read full description

End-to-end encrypted file sync & sharing app that lets you store, sync and share files securely and easily. Save your photos to a secure place, create memos about meetings for your team and access them in shared folders on the go – and be sure that no one can read your files besides you and those who you share with. Tresorit uses built-in end-to-end encryption with zero-knowledge standards to guarantee the highest level of security. All your files are encrypted on your device before they are uploaded to the cloud, which means no one else can read them besides you, no hackers, no authorities, not even Tresorit’s IT admins. Already a Tresorit user? Just download, sign in, and go! Features: • Create shared folders (tresors) with your friends or colleagues, access their contents securely on any iOS device • Backup your photos in a secure place with end-to-end encrypted camera upload • Keep control of your files by managing permissions • Share files securely even with those without an account: send links instead of risky attachments • Create favorite tresors, access and edit your files even when you are offline • Protect your account with 2-factor authentication and app passcode to ensure no one has access to your tresors - even if someone gains access to your phone • Say no for tracking: Tresorit for iOS accesses the least it has to. No location tracking, no access to your contacts • Tresorit for iOS features the same end-to-end encryption and security as the desktop apps • Make the most out of Tresorit by adding the desktop client as well (sync between devices, locations, access your files from all devices) What do others say about Tresorit? “One of the Best Cloud Storage Services that Protect Your Privacy” – LifeHacker “There are several services that offer secure storage in the cloud, but Tresorit is definitely one of the best” – PC Advisor

About

Sync

Securely store, access, and share your files with end-to-end encryption. This cloud storage solution allows you to sync data across all your devices and collaborate with others through shared folders. Protect your sensitive information with robust privacy features.

Highlights
  • 5 GB free secure cloud storage
  • Access files from any device
  • Secure file sharing via links
  • Collaborate with shared folders
  • End-to-end encryption
  • Access controls
Features
Read full description

Sync’s encrypted cloud storage keeps your files safe, secure and private. Access your files from all of your computers and devices easily, and share your files securely with anyone. Features: * Get 5 GB of secure cloud storage free * Access files stored on any computer or device, from your phone or tablet * Upload your photos and videos to Sync * Send large files easily with links * Collaborate and share with teams through shared folders * Protect your files with built-in encryption and access controls How Sync protects your privacy: Sync's end-to-end encrypted cloud storage ensures that only you can access your data. We can't read your files - nor would we want to - ensuring that your documents, photos and videos are safeguarded from unauthorized access. We'd love your feedback! Contact us using the support link below.

Screenshots

Tresorit4 screens
Sync4 screens

Verdict

The call

The clearest difference is rating: Tresorit at 4.6 against Sync's 4.1. Tresorit also leads on review sentiment (81% vs 50%). Sync's advantage is monetization model (free vs free with in-app purchases). On price, ratings volume, update cadence and ads 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Tresorit holds the better App Store score, 4.6 against 4.1. Both are backed by a comparable volume of ratings — 508 and 805 respectively. Written reviews point the same way: 81% of Tresorit's written reviews are positive against 50% of Sync's.

UpkeepUpdate frequency

Tresorit ships an update every 5 weeks, Sync monthly. Both last shipped on September 22, 2026.

Scorecard3 real differences · 7 level
Tresorit versus Sync: the parameters behind the verdict, then further details
ParameterTresoritSync
PriceFreeFree
Rating4.6 (508 ratings) — better4.1 (805 ratings)
Positive reviews80.8% of reviews — better50.2% of reviews
Number of ratings508805 — better
Update frequencyEvery 5 weeksMonthly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size134 MB53 MB
Age rating4+4+
DeveloperTresoritSync.com Inc.

Customer experience

Tresorit

All ratings508 ratings
Positive89.4%
Neutral3.1%
Negative7.5%
Written reviews464 reviews
Positive80.8%
Neutral5.4%
Negative13.8%

Sync

All ratings805 ratings
Positive77.3%
Neutral4.5%
Negative18.3%
Written reviews512 reviews
Positive50.2%
Neutral9.6%
Negative40.2%

User reviews

Tresorit

From 508 App Store ratings

What we love

  • 🚀 Fast, efficient, and seamless
  • 🔒 Highly secure and encrypted
  • 👍 User-friendly and intuitive
  • 💡 Innovative features like zero-knowledge encryption
  • 🚀 Reliable and consistent performance

Room to improve

  • 🐛 Occasional bugs and glitches
  • 💰 Relatively expensive subscription plans
  • 🔍 Limited free storage space
  • 🤔 Confusing or hidden pricing information

Sync

From 805 App Store ratings

What we love

  • 👍 User-friendly
  • 🔒 Secure cloud storage
  • 💡 Great value for the price
  • 🚀 Fast and reliable
  • 🇨🇦 Canadian-based company

Room to improve

  • 🐛 Crashes and bugs
  • 🔍 Lack of search functionality
  • 🚧 Outdated and basic UI
  • 🔻 Slow upload/download speeds
  • 📂 Limited file management options

Bugs and requests

Tresorit

Reported bugs

3 issues
  • Frequent app crashes or freezes
  • Issues with file uploads and downloads
  • Syncing problems across devices

Requested features

4 requests
  • Improved mobile app integration with iOS Files app
  • Ability to password-protect shared links
  • Thumbnail previews for images and documents
  • Scan-to-PDF functionality

Sync

Reported bugs

5 issues
  • Unreliable camera roll backup
  • Inconsistent file sync across devices
  • Frequent app crashes and freezes
  • Inability to access offline files
  • Sync issues when switching devices

Requested features

5 requests
  • Improved iOS app integration with Files app
  • Video playback and streaming support
  • Bulk file management (rename, move, delete)
  • Advanced sharing options and controls
  • Better background sync for photos/videos

In-app purchases

None

Tresorit

No in-app purchases

None

Sync

No in-app purchases

Questions

Is Tresorit free?
Tresorit is free to download, with no in-app purchases.
Is Sync free?
Sync is free to download, with no in-app purchases.
Which has better reviews, Tresorit or Sync?
Tresorit is rated higher. Tresorit averages 4.6 out of 5 from 508 ratings, while Sync averages 4.1 from 805 ratings.
Do Tresorit or Sync have ads?
Neither Tresorit nor Sync shows ads.
Which is updated more often, Tresorit or Sync?
Tresorit ships an update every 5 weeks, and Sync monthly. Most recently, Tresorit was updated on September 22, 2026 and Sync on September 22, 2026.

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