# Authenticator App vs Otpkey Authenticator

The clearest difference is rating: Authenticator App at 4.8 against Otpkey Authenticator's 1.0. Authenticator App also leads on review sentiment (72% vs 50%) and ratings volume (32 vs 2). Otpkey Authenticator's advantage is in-app purchases (none vs 4) and iOS requirement (13.0 vs 16.0). On price, ads and device support there is nothing between them.

Both are free to download. Authenticator App sells 3 in-app purchases, starting at $1.99 per month. Otpkey Authenticator asks for nothing beyond the download.

Authenticator App holds the better App Store score, 4.8 against 1.0. That said, the two scores are not equally well evidenced: Authenticator App has 32 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 72% of Authenticator App's written reviews are positive against 50% of Otpkey Authenticator's.

Authenticator App ships an update every 3 weeks, Otpkey Authenticator every 2 months. The most recent releases landed on September 24, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | Authenticator App | Otpkey Authenticator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (32 ratings)](https://appshunter.io/ios/app/authenticator-app-sentinel/id1189922806/reviews)** | [1.0 (2 ratings)](https://appshunter.io/ios/app/otpkey-authenticator/id6444123920/reviews) |
| Number of ratings | **32** | 2 |
| Positive reviews | **72.4% of reviews** | 50.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 49 MB | 22 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone, iPad, Mac, Apple Watch | **iPhone, iPad, iPod, Mac, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Tommaso Carpi](https://appshunter.io/developer/714996025) | [Certchip Corp](https://appshunter.io/developer/1652474819) |

## What reviewers say

### Authenticator App

[App page](https://appshunter.io/ios/app/authenticator-app-sentinel/id1189922806)

Secure your online accounts with this app that manages all your two-factor authentication (2FA) codes in one place. It offers seamless syncing across devices, organized folders, and encrypted backups for peace of mind. Personalize your experience with custom icons and themes for easy account recognition.

**Highlights:** Manage all 2FA codes in one app, Seamless sync across Apple devices, Encrypted backups for code protection, Organize accounts with folders, Custom icons and themes, iOS & macOS widgets for quick access

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $1.99 | per month |
| Annual Subscription | $9.99 | per year |
| Lifetime Access | $39.99 | one-time |

**What reviewers like**

- 👍 Easy to use and set up
- 🚀 Seamless syncing across devices (iOS, macOS)
- 🔒 Secure and dependable 2FA solution
- 💡 Responsive and friendly developer
- 💰 One-time purchase/lifetime option appreciated

**What reviewers complain about**

- 🐛 Widgets not working consistently (Mac/iPhone)
- 💰 Paid app, no free tier for some features
- 🐛 Some users experienced issues with syncing
- 🐛 Codes not working for specific services (e.g., Discord, Amazon)
- 🐛 App stuck on loading tokens for some users

**Reported bugs**

- Widgets not working on Mac Desktop and iPhone
- App stuck on loading tokens
- Syncing issues between devices
- Codes not working for specific services (Discord, Amazon)
- Unexpected charges/multiple purchases

**Requested features**

- Ability to reorder/hide folders
- Sort accounts by email address or service
- Show duplicates
- Show date service added
- Backup options (more explicit)


### Otpkey Authenticator

[App page](https://appshunter.io/ios/app/otpkey-authenticator/id6444123920)

Enhance your online security with multi-factor authentication. This app generates one-time passwords for various services, even offline, and supports standard TOTP/HOTP protocols. It offers features like QR code scanning, auto-hiding codes, and biometric authentication.

**Highlights:** Multi-factor authentication, Offline OTP generation, QR code scanning and export, Biometric authentication support, Clipboard code copying, Widget and Watch App support

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

**In-app purchases:** none


## Frequently asked questions

### Is Authenticator App free?

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

### Is Otpkey Authenticator free?

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

### Which has better reviews, Authenticator App or Otpkey Authenticator?

Authenticator App is rated higher. Authenticator App averages 4.8 out of 5 from 32 ratings, while Otpkey Authenticator averages 1.0 from 2 ratings.

### Do Authenticator App or Otpkey Authenticator have ads?

Neither Authenticator App nor Otpkey Authenticator shows ads.

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

Authenticator App ships an update every 3 weeks, and Otpkey Authenticator every 2 months. Most recently, Authenticator App was updated on September 24, 2026 and Otpkey Authenticator on September 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.*