# Proton Authenticator vs Spacemail

The clearest difference is rating: Spacemail at 4.7 against Proton Authenticator's 4.4. On price, review sentiment, ratings volume and update cadence there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Spacemail holds the better App Store score, 4.7 against 4.4. Both are backed by a comparable volume of ratings — 242 and 237 respectively. Written reviews complicate that: 56% of Proton Authenticator's written reviews are positive against 53% of Spacemail's, so the app with the better star average is not the one people write more warmly about.

Proton Authenticator ships an update weekly, Spacemail every 5 days. Both last shipped on September 22, 2026.

## The numbers

| Metric | Proton Authenticator | Spacemail |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (242 ratings)](https://appshunter.io/ios/app/proton-authenticator/id6741758667/reviews) | **[4.7 (237 ratings)](https://appshunter.io/ios/app/spacemail/id6754387443/reviews)** |
| Number of ratings | **242** | 237 |
| Positive reviews | **56.3% of reviews** | 53.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Weekly | **Every 5 days** |
| Monetization | Free | Free |
| Size | 119 MB | 160 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Proton AG](https://appshunter.io/developer/979659484) | [Namecheap, Inc](https://appshunter.io/developer/482604035) |

## What reviewers say

### Proton Authenticator

[App page](https://appshunter.io/ios/app/proton-authenticator/id6741758667)

Securely manage your two-factor authentication codes with an open-source, end-to-end encrypted authenticator app. It offers seamless cross-device syncing, effortless import from other apps, and robust backup options, all protected by strict Swiss privacy laws. Take control of your digital security with a trusted and private solution.

**Highlights:** End-to-end encrypted iCloud sync, Effortless import from other authenticators, Secure backup and export, Swiss privacy by design, Open source and transparent, Offline support

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Cross-platform support
- 🔒 Secure cloud sync
- 👍 Easy import from other authenticators
- 🚀 Convenient 'next' feature for codes

**What reviewers complain about**

- 🐛 Buggy UI (scrolling jitters, random sorting)
- 👎 Lack of customization options (pin favorites, change icons)
- 🐛 Sync/login issues on iPad

**Reported bugs**

- Sync/login loop on iPad
- 2FA input broken on non-iPhone devices
- Screen strobing on iPad
- Duplicate entries after import

**Requested features**

- PIN unlock for desktop
- Alphabetical sorting option
- Export function (not just Proton-specific backup)
- Native macOS app
- Option to hide item icons


### Spacemail

[App page](https://appshunter.io/ios/app/spacemail/id6754387443)

Manage your business email efficiently with this app. It offers a fast, intuitive interface with instant syncing across devices. Enjoy smart security features like 2FA and data encryption in an ad-free environment.

**Highlights:** Seamless business email management, Smart security with 2FA and encryption, Intuitive design and instant sync, Intelligent dark mode, Ad-free inbox

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Proton Authenticator free?

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

### Is Spacemail free?

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

### Which has better reviews, Proton Authenticator or Spacemail?

Spacemail is rated higher. Proton Authenticator averages 4.4 out of 5 from 242 ratings, while Spacemail averages 4.7 from 237 ratings.

### Do Proton Authenticator or Spacemail have ads?

Neither Proton Authenticator nor Spacemail shows ads.

### Which is updated more often, Proton Authenticator or Spacemail?

Proton Authenticator ships an update weekly, and Spacemail every 5 days. Most recently, Proton Authenticator was updated on September 22, 2026 and Spacemail on September 22, 2026.

---

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