# 2FA Authenticator (2FAS) vs mLogBook

The clearest difference is price: 2FA Authenticator (2FAS) at Free against mLogBook's $9.99. mLogBook's advantage is iOS requirement (15.0 vs 18.6). On update cadence, ads, in-app purchases and device support there is nothing between them.

2FA Authenticator (2FAS) is free to download; mLogBook costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

2FA Authenticator (2FAS) ships an update monthly, mLogBook every 5 weeks. The most recent releases landed on November 7, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | 2FA Authenticator (2FAS) | mLogBook |
| --- | --- | --- |
| Price | **Free** | $9.99 |
| Rating | **[4.7 (36K ratings)](https://appshunter.io/ios/app/2fa-authenticator-2fas/id1217793794/reviews)** | — |
| Number of ratings | **36K** | — |
| Positive reviews | 77.4% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 5 weeks |
| Monetization | Free | — |
| Size | 81 MB | 10 MB |
| Requires iOS | 18.6 | **15.0** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Two Factor Authentication Service Inc.](https://appshunter.io/developer/1217793793) | [G-Mobile](https://appshunter.io/developer/376808299) |

## What reviewers say

### 2FA Authenticator (2FAS)

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

This app provides an easy and secure way to enable two-factor authentication for your online accounts. It offers features like token restoration, biometric protection, and offline functionality to keep your personal data and passwords safe from cyber threats.

**Highlights:** Two-factor authentication, Token backup and restore, Biometric app protection, Open-source and transparent, Cross-device sync, Offline functionality

**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


### mLogBook

[App page](https://appshunter.io/ios/app/mlogbook/id6472820704)

**In-app purchases:** none


## Frequently asked questions

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

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

### Is mLogBook free?

mLogBook costs $9.99, with no in-app purchases.

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

Neither 2FA Authenticator (2FAS) nor mLogBook shows ads.

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

2FA Authenticator (2FAS) ships an update monthly, and mLogBook every 5 weeks. Most recently, 2FA Authenticator (2FAS) was updated on November 7, 2026 and mLogBook on October 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.*