# Proton Authenticator vs Glacier App

The clearest difference is in-app purchases: Proton Authenticator at none against Glacier App's 6. Glacier App's advantage is chart position (#29 vs unranked). On price, rating, review sentiment and ratings volume there is nothing between them.

Both are free to download. Glacier App sells 6 in-app purchases, starting at $4.99 per month. Proton Authenticator asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.4 for Proton Authenticator against 4.3 for Glacier App. Both are backed by a comparable volume of ratings — 242 and 269 respectively. Written reviews are what separate them: 56% of Proton Authenticator's written reviews are positive against 61% of Glacier App's.

Both ship on a similar rhythm, roughly weekly. Both last shipped on September 26, 2026.

## The numbers

| Metric | Proton Authenticator | Glacier App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (242 ratings)](https://appshunter.io/ios/app/proton-authenticator/id6741758667/reviews)** | [4.3 (269 ratings)](https://appshunter.io/ios/app/glacier-app/id6776005049/reviews) |
| Number of ratings | 242 | **269** |
| Positive reviews | 56.3% of reviews | **60.9% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Weekly | Weekly |
| Monetization | **Free** | Subscription |
| Best chart rank | — | **#29** |
| Size | 119 MB | 65 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Proton AG](https://appshunter.io/developer/979659484) | [Security App LLC](https://appshunter.io/developer/6776005051) |

## 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


### Glacier App

[App page](https://appshunter.io/ios/app/glacier-app/id6776005049)

**Currently charting:** #29 Top Grossing · Productivity, #166 Top Free · Productivity (US App Store)

Enhance your mobile privacy with advanced security features. Protect your connection with VPN and DNS security, block trackers and ads, and receive real-time threat alerts. Secure your communications and browse privately without compromising daily usability.

**Highlights:** VPN and DNS protection, Tracker and ad blocking, Real-time threat alerts, Device tampering detection, Secure calling with alternate numbers, Privacy-focused design

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Line | $4.99 | per month |
| 2 Lines | $8.99 | per month |
| Monthly | $14.99 | per month |
| 5 Lines | $19.99 | per month |
| Yearly | $159.99 | per year |
| Additional Phone Number | $2.99 | one-time |


## Frequently asked questions

### Is Proton Authenticator free?

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

### Is Glacier App free?

Glacier App is free to download, with in-app purchases available.

### Which has better reviews, Proton Authenticator or Glacier App?

Proton Authenticator is rated higher. Proton Authenticator averages 4.4 out of 5 from 242 ratings, while Glacier App averages 4.3 from 269 ratings.

### Do Proton Authenticator or Glacier App have ads?

Neither Proton Authenticator nor Glacier App shows ads.

### Which is updated more often, Proton Authenticator or Glacier App?

Proton Authenticator ships an update weekly, and Glacier App weekly. Most recently, Proton Authenticator was updated on September 26, 2026 and Glacier App on September 26, 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.*