# 2FA Authenticator (2FAS) vs Auth

The clearest difference is rating: 2FA Authenticator (2FAS) at 4.7 against Auth's 4.2. 2FA Authenticator (2FAS) also leads on in-app purchases (none vs 2) and ads (none vs shown). Auth's advantage is review sentiment (87% vs 78%) and iOS requirement (15.0 vs 18.6). On price, update cadence and device support there is nothing between them.

Both are free to download. Auth sells 2 in-app purchases, starting at $3.99 per 7 days. 2FA Authenticator (2FAS) asks for nothing beyond the download.

2FA Authenticator (2FAS) holds the better App Store score, 4.7 against 4.2. That said, the two scores are not equally well evidenced: 2FA Authenticator (2FAS) has 35K ratings behind it against 365, so its average is the more settled of the two. Written reviews complicate that: 78% of 2FA Authenticator (2FAS)'s written reviews are positive against 87% of Auth's, so the app with the better star average is not the one people write more warmly about.

2FA Authenticator (2FAS) ships an update monthly, Auth every 2 weeks. The most recent releases landed on October 3, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | 2FA Authenticator (2FAS) | Auth |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (35K ratings)](https://appshunter.io/ios/app/2fa-authenticator-2fas/id1217793794/reviews)** | [4.2 (365 ratings)](https://appshunter.io/ios/app/auth-authenticator-app/id6470453559/reviews) |
| Number of ratings | **35K** | 365 |
| Positive reviews | 77.6% of reviews | **87.3% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Every 2 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 80 MB | 10 MB |
| Requires iOS | 18.6 | **15.0** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [Two Factor Authentication Service Inc.](https://appshunter.io/developer/1217793793) | [婷 兰](https://appshunter.io/developer/1666722179) |

## What reviewers say

### 2FA Authenticator (2FAS)

[App page](https://appshunter.io/ios/app/2fa-authenticator-2fas/id1217793794)

Securely log in to your online accounts with two-factor authentication. This app protects your personal data and passwords from cyber threats with a simple, private, and open-source solution. It offers easy token restoration, app protection, and offline functionality.

**Highlights:** Two-factor authentication, Token backup and restore, App protection with passcode/biometrics, Open-source and transparent, Offline functionality, Cross-device sync, One-tap authentication with browser extensions

**Features:** Apple Watch app

**In-app purchases:** none

**What reviewers like**

- 🚀 Efficient and fast
- 🔒 Secure and private
- 👍 Simple and intuitive UI
- 💡 Customizable icons and folders
- 🔒 iCloud backup and sync

**What reviewers complain about**

- 🐛 Occasional bugs and crashes
- 🔒 Lack of password/PIN protection
- 🕰 No Apple Watch app
- 🐛 Issues with push notifications
- 🕰 Missing desktop/web app

**Reported bugs**

- Tokens disappearing after device changes
- Push notification failures
- Incompatibility with older devices

**Requested features**

- Alphanumeric passcode option
- Custom icon uploads
- Apple Watch app
- Desktop/web app
- Improved support and communication


### Auth

[App page](https://appshunter.io/ios/app/auth-authenticator-app/id6470453559)

Enhance your online security with this app that generates time-based one-time passwords. Protect your accounts from unauthorized access by enabling two-factor authentication and scanning QR codes. Secure your digital life with robust encryption and convenient backup options.

**Highlights:** Generates one-time tokens, Two-factor authentication, Encrypted vault, Password/biometric unlock, Supports HOTP and TOTP, Automatic iCloud backups, Multiple entry methods

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly premium | $3.99 | per 7 days |
| Yearly premium | $49.99 | per year |

**What reviewers like**

- 🔒 Robust security features
- 👍 User-friendly interface
- 💡 Convenient multi-device sync
- 🚀 Reliable performance
- 🔒 Secure backup and recovery options

**What reviewers complain about**

- 🐛 Frequent ads disrupting usage
- 💰 Paid premium version required for ad-free experience

**Reported bugs**

- Ads interfering with account setup
- Occasional crashes or freezes

**Requested features**

- Dark mode option
- Improved free tier with fewer ads


## Frequently asked questions

### Is 2FA Authenticator (2FAS) free?

2FA Authenticator (2FAS) is free to download, with no in-app purchases.

### Is Auth free?

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

### Which has better reviews, 2FA Authenticator (2FAS) or Auth?

2FA Authenticator (2FAS) is rated higher. 2FA Authenticator (2FAS) averages 4.7 out of 5 from 35K ratings, while Auth averages 4.2 from 365 ratings.

### Do 2FA Authenticator (2FAS) or Auth have ads?

Auth shows ads; 2FA Authenticator (2FAS) does not.

### Which is updated more often, 2FA Authenticator (2FAS) or Auth?

2FA Authenticator (2FAS) ships an update monthly, and Auth every 2 weeks. Most recently, 2FA Authenticator (2FAS) was updated on October 3, 2026 and Auth on September 30, 2026.

---

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