# Authenticator App vs Mail 25

The clearest difference is device support: Authenticator App at 5 against Mail 25's 2. 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.

Authenticator App ships an update every 9 days, Mail 25 fortnightly. The most recent releases landed on October 17, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | Authenticator App | Mail 25 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (34K ratings)](https://appshunter.io/ios/app/authenticator-app-oneauth/id1142928979/reviews)** | — |
| Number of ratings | **34K** | — |
| Positive reviews | 44.9% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 9 days** | Fortnightly |
| Monetization | Free | — |
| Size | 220 MB | 24 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | **iPhone, iPad, iPod, Mac, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Zoho Corporation](https://appshunter.io/developer/388384807) | [Yukthi Systems Private Limited](https://appshunter.io/developer/6786602866) |

## What reviewers say

### Authenticator App

[App page](https://appshunter.io/ios/app/authenticator-app-oneauth/id1142928979)

Secure your online accounts with industry-standard two-factor authentication. Easily add accounts, generate time-based OTPs, and benefit from encrypted backups. Organize and manage your TFA with features like folders, brand logos, and search.

**Highlights:** Add accounts via QR code or manual entry, Time-based OTPs (offline access), Encrypted backup and secure recovery, Sync secrets across devices, Organize accounts with folders, Brand logos for easy identification, Passwordless sign-in options

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

**In-app purchases:** none

**What reviewers like**

- 🚀 Quick and efficient
- 🔒 Very secure
- 👍 Easy to use
- 💡 Has Apple Watch app

**What reviewers complain about**

- 🐛 Unreliable notifications
- 🐛 Confusing user interface
- 🐛 Inconsistent behavior
- 🐛 Difficult to navigate
- 🐛 Locked out of accounts

**Reported bugs**

- Push notifications not working
- Endless authentication loops
- Incompatibility with new devices
- Locking users out of accounts

**Requested features**

- Support for multiple accounts
- Ability to export data to other authenticator apps
- Improved error handling and feedback
- Simpler setup and onboarding process


### Mail 25

[App page](https://appshunter.io/ios/app/mail-25/id6786602864)

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

**In-app purchases:** none


## Frequently asked questions

### Is Authenticator App free?

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

### Is Mail 25 free?

Mail 25 is free to download, with no in-app purchases.

### Do Authenticator App or Mail 25 have ads?

Neither Authenticator App nor Mail 25 shows ads.

### Which is updated more often, Authenticator App or Mail 25?

Authenticator App ships an update every 9 days, and Mail 25 fortnightly. Most recently, Authenticator App was updated on October 17, 2026 and Mail 25 on September 27, 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.*