# AEGIS Mobile ShieldONE vs Proton Authenticator & 2FA

The clearest difference is review sentiment: Proton Authenticator & 2FA at 58% against AEGIS Mobile ShieldONE's 0%. Proton Authenticator & 2FA also leads on rating (4.4 vs 1.0) and ratings volume (314 vs 1). AEGIS Mobile ShieldONE's advantage is update cadence (daily vs weekly). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Proton Authenticator & 2FA holds the better App Store score, 4.4 against 1.0. That said, the two scores are not equally well evidenced: Proton Authenticator & 2FA has 314 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 0% of AEGIS Mobile ShieldONE's written reviews are positive against 58% of Proton Authenticator & 2FA's.

AEGIS Mobile ShieldONE ships an update daily, Proton Authenticator & 2FA weekly. The most recent releases landed on October 2, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | AEGIS Mobile ShieldONE | Proton Authenticator & 2FA |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/aegis-mobile-shieldone/id6499427475/reviews) | **[4.4 (314 ratings)](https://appshunter.io/ios/app/proton-authenticator-and-2fa/id6741758667/reviews)** |
| Number of ratings | 1 | **314** |
| Positive reviews | 0.0% of reviews | **57.6% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Daily** | Weekly |
| Monetization | Free | Free |
| Size | 86 MB | 120 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone | **iPhone, iPad, Apple Watch** |
| Age rating | 17+ | 4+ |
| Developer | [AEGIS Authentication Technologies LLC](https://appshunter.io/developer/1743396271) | [Proton AG](https://appshunter.io/developer/979659484) |

## What reviewers say

### AEGIS Mobile ShieldONE

[App page](https://appshunter.io/ios/app/aegis-mobile-shieldone/id6499427475)

This app provides advanced mobile authentication for personal and enterprise resources. It generates one-time codes and supports biometric unlocking via fingerprint or facial recognition. The app offers a simple self-enrollment process and integrates with various cloud services, security gateways, and VPNs.

**Highlights:** One-time code generation, Biometric unlocking (fingerprint/facial recognition), QR code activation, Cloud app integration, VPN and security gateway support, Third-party authenticator integration

**Features:** macOS Compatibility

**In-app purchases:** none


### Proton Authenticator & 2FA

[App page](https://appshunter.io/ios/app/proton-authenticator-and-2fa/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


## Frequently asked questions

### Is AEGIS Mobile ShieldONE free?

AEGIS Mobile ShieldONE is free to download, with no in-app purchases.

### Is Proton Authenticator & 2FA free?

Proton Authenticator & 2FA is free to download, with no in-app purchases.

### Which has better reviews, AEGIS Mobile ShieldONE or Proton Authenticator & 2FA?

Proton Authenticator & 2FA is rated higher. AEGIS Mobile ShieldONE averages 1.0 out of 5 from 1 ratings, while Proton Authenticator & 2FA averages 4.4 from 314 ratings.

### Do AEGIS Mobile ShieldONE or Proton Authenticator & 2FA have ads?

Neither AEGIS Mobile ShieldONE nor Proton Authenticator & 2FA shows ads.

### Which is updated more often, AEGIS Mobile ShieldONE or Proton Authenticator & 2FA?

AEGIS Mobile ShieldONE ships an update daily, and Proton Authenticator & 2FA weekly. Most recently, AEGIS Mobile ShieldONE was updated on October 2, 2026 and Proton Authenticator & 2FA on October 19, 2026.

---

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