# Sync vs Proton Drive

The clearest difference is in-app purchases: Sync at none against Proton Drive's 9. Sync also leads on review sentiment (50% vs 37%). Proton Drive's advantage is update cadence (fortnightly vs monthly). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Proton Drive sells 9 in-app purchases, starting at $0.99 per month. Sync asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.1 for Sync against 4.1 for Proton Drive. Both are backed by a comparable volume of ratings — 805 and 1.1K respectively. Written reviews are what separate them: 50% of Sync's written reviews are positive against 37% of Proton Drive's.

Sync ships an update monthly, Proton Drive fortnightly. The most recent releases landed on September 22, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | Sync | Proton Drive |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.1 (805 ratings)](https://appshunter.io/ios/app/sync-secure-cloud-storage/id917410266/reviews) | [4.1 (1.1K ratings)](https://appshunter.io/ios/app/proton-drive-cloud-storage/id1509667851/reviews) |
| Number of ratings | 805 | **1.1K** |
| Positive reviews | **50.2% of reviews** | 36.9% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Fortnightly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 53 MB | 235 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Sync.com Inc.](https://appshunter.io/developer/917410265) | [Proton AG](https://appshunter.io/developer/979659484) |

## What reviewers say

### Sync

[App page](https://appshunter.io/ios/app/sync-secure-cloud-storage/id917410266)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

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

**What reviewers complain about**

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- 🚧 Outdated and basic UI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

**Reported bugs**

- 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**

- 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


### Proton Drive

[App page](https://appshunter.io/ios/app/proton-drive-cloud-storage/id1509667851)

Securely store and back up your files and photos with end-to-end encryption. Access your content across devices, share securely with password protection, and enjoy peace of mind with Swiss privacy laws. Offers free storage with upgrade options.

**Highlights:** End-to-end encrypted storage, Automatic photo and video backup, Secure link sharing with passwords, PIN/biometric protection, Offline file access, File version history

**Features:** Vision Pro support

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Drive Lite 1 month | $0.99 | per month |
| Drive Plus 1 month | $4.99 | per month |
| Drive Plus 1 TB (1 month) | $9.99 | per month |
| Proton Unlimited 1 month | $14.99 | per month |
| Drive Plus 1 year | $47.90 | per year |
| Drive Plus 1 TB (1 year) | $95.99 | per year |
| Proton Unlimited 1 year | $119.00 | per year |
| Drive Plus | $59.99 | one-time |
| Proton Unlimited | $149.99 | one-time |

**What reviewers like**

- 🚀 Fast and efficient
- 🔒 Secure and private
- 👍 Simple and intuitive UI
- 💡 Integrated with iOS Files app

**What reviewers complain about**

- 🐛 Buggy and unreliable
- 🔋 High battery consumption
- 📥 Slow upload/download speeds
- 🗂️ Lacking key features like search and sorting

**Reported bugs**

- Frequent crashes and errors
- Inconsistent file syncing across devices
- Unable to access files uploaded from desktop
- Issues with offline file access

**Requested features**

- Automatic photo/video backup
- Ability to edit documents within the app
- Seamless integration with other apps for file sharing
- Linux desktop client


## Frequently asked questions

### Is Sync free?

Sync is free to download, with no in-app purchases.

### Is Proton Drive free?

Proton Drive is free to download, with in-app purchases available.

### Which has better reviews, Sync or Proton Drive?

Sync and Proton Drive are both rated 4.1 out of 5 on the App Store, from 805 and 1.1K ratings respectively.

### Do Sync or Proton Drive have ads?

Neither Sync nor Proton Drive shows ads.

### Which is updated more often, Sync or Proton Drive?

Sync ships an update monthly, and Proton Drive fortnightly. Most recently, Sync was updated on September 22, 2026 and Proton Drive on September 25, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*