# CaRool FleetCheck vs Proton Authenticator & 2FA

The clearest difference is iOS requirement: CaRool FleetCheck at 15.1 against Proton Authenticator & 2FA's 17.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

CaRool FleetCheck ships an update fortnightly, Proton Authenticator & 2FA weekly. The most recent releases landed on October 13, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | CaRool FleetCheck | Proton Authenticator & 2FA |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.4 (314 ratings)](https://appshunter.io/ios/app/proton-authenticator-and-2fa/id6741758667/reviews)** |
| Number of ratings | — | **314** |
| Positive reviews | — | 57.6% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | **Weekly** |
| Monetization | — | Free |
| Size | 31 MB | 120 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | iPhone, iPod | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [CaRool](https://appshunter.io/developer/1604560358) | [Proton AG](https://appshunter.io/developer/979659484) |

## What reviewers say

### CaRool FleetCheck

[App page](https://appshunter.io/ios/app/carool-fleetcheck/id1635941392)

**Features:** Vision Pro support

**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 CaRool FleetCheck free?

CaRool FleetCheck 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.

### Do CaRool FleetCheck or Proton Authenticator & 2FA have ads?

Neither CaRool FleetCheck nor Proton Authenticator & 2FA shows ads.

### Which is updated more often, CaRool FleetCheck or Proton Authenticator & 2FA?

CaRool FleetCheck ships an update fortnightly, and Proton Authenticator & 2FA weekly. Most recently, CaRool FleetCheck was updated on October 13, 2026 and Proton Authenticator & 2FA on October 20, 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.*