# Authenticator App vs SimpleLibrary

The clearest difference is in-app purchases: Authenticator App at none against SimpleLibrary's 2. Authenticator App also leads on update cadence (every 2 weeks vs every 6 weeks) and device support (5 vs 3). On price, ads and iOS requirement there is nothing between them.

Both are free to download. SimpleLibrary sells 2 in-app purchases, starting at $3.99 per month. Authenticator App asks for nothing beyond the download.

Authenticator App ships an update every 2 weeks, SimpleLibrary every 6 weeks. The most recent releases landed on October 23, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Authenticator App | SimpleLibrary |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (34K ratings)](https://appshunter.io/ios/app/authenticator-app-oneauth/id1142928979/reviews)** | — |
| Number of ratings | **34K** | — |
| Positive reviews | 45.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 6 weeks |
| Monetization | Free | — |
| Size | 220 MB | 91 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | **iPhone, iPad, iPod, Mac, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Zoho Corporation](https://appshunter.io/developer/388384807) | [SERAP ERKORKMAZ KADOGLU](https://appshunter.io/developer/1880487524) |

## 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


### SimpleLibrary

[App page](https://appshunter.io/ios/app/simplelibrary/id6761193342)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SimpleLibrary Pro Monthly | $3.99 | per month |
| SimpleLibrary Pro Yearly | $29.99 | per year |


## Frequently asked questions

### Is Authenticator App free?

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

### Is SimpleLibrary free?

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

### Do Authenticator App or SimpleLibrary have ads?

Neither Authenticator App nor SimpleLibrary shows ads.

### Which is updated more often, Authenticator App or SimpleLibrary?

Authenticator App ships an update every 2 weeks, and SimpleLibrary every 6 weeks. Most recently, Authenticator App was updated on October 23, 2026 and SimpleLibrary on October 14, 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.*