# OTP Auth vs TOTP Authenticator

OTP Auth and TOTP Authenticator both sit at 4.6 stars, but that hides the real split: 78% of OTP Auth's written reviews are positive against 36% of TOTP Authenticator's. OTP Auth also leads on update cadence (every 2 weeks vs every 2 months) and device support (4 vs 2). TOTP Authenticator's advantage is ratings volume (3.9K vs 463). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. OTP Auth sells 1 one-off in-app purchase and TOTP Authenticator sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.6 for OTP Auth against 4.7 for TOTP Authenticator. That said, the two scores are not equally well evidenced: TOTP Authenticator has 3.9K ratings behind it against 463, so its average is the more settled of the two. Written reviews are what separate them: 78% of OTP Auth's written reviews are positive against 36% of TOTP Authenticator's.

OTP Auth ships an update every 2 weeks, TOTP Authenticator every 2 months. The most recent releases landed on October 6, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | OTP Auth | TOTP Authenticator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (463 ratings)](https://appshunter.io/ios/app/otp-auth/id659877384/reviews) | **[4.7 (3.9K ratings)](https://appshunter.io/ios/app/totp-authenticator-fast-2fa/id1404230533/reviews)** |
| Number of ratings | 463 | **3.9K** |
| Positive reviews | **77.9% of reviews** | 36.1% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 2 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 22 MB | 24 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Roland Moers](https://appshunter.io/developer/659877387) | [AppyFactor](https://appshunter.io/developer/1404230532) |

## What reviewers say

### OTP Auth

[App page](https://appshunter.io/ios/app/otp-auth/id659877384)

Enhance your account security with two-factor authentication on your iPhone and iPad. This app supports numerous popular services and offers robust encryption for all your data. It works offline and prioritizes user privacy by not collecting or transmitting personal information.

**Highlights:** Two-factor authentication support, Encrypted iCloud Sync, Siri and Apple Watch support, Notification Center widget, Safari extension for password pasting, Face ID/Touch ID security, Encrypted backups and import/export

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| OTP Auth Pro | $3.99 | one-time |

**What reviewers like**

- 🚀 Simple and effective
- 🔒 Secure with backup/restore
- 👍 Great Apple Watch support
- 👍 Intuitive and user-friendly
- 👍 Customizable icons and folders

**What reviewers complain about**

- 🐛 Occasional sync and widget issues
- 🐛 Apple Watch app needs improvements
- 🐛 Unreliable backup/restore for some users
- 🐛 Crashes and bugs reported by a few

**Reported bugs**

- Sync issues causing data loss
- Widget not displaying codes correctly
- Crashes on certain iOS versions

**Requested features**

- Larger text/font size options
- Alphabetical sorting of accounts
- Automatic account refresh/update
- Ability to edit account details


### TOTP Authenticator

[App page](https://appshunter.io/ios/app/totp-authenticator-fast-2fa/id1404230533)

Enhance your online security with this app that generates one-time tokens for two-factor authentication. Protect your accounts from hackers by easily adding 2FA to your online services. Supports cloud sync and a Chrome extension for seamless desktop integration.

**Highlights:** Cloud Sync for backup, Chrome Extension for desktop, Dark and light theme support, Multi-platform and multi-device sync, Unlimited account support, Home screen widgets, Biometric app lock

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| TOTP Premium Features | $5.99 | one-time |
| TOTP Default Product | $5.99 | one-time |

**What reviewers like**

- 👍 Solid free basic experience
- 🚀 Simple and effective
- 👍 Easy to use and set up new accounts
- 🚀 Chrome extension is cool
- 🔒 Excellent app for 2FA

**What reviewers complain about**

- 🐛 No export functionality
- 🐛 Impossible to recover account without paying
- 🐛 Can't save Authy keys from sites
- 🐛 Codes expire too fast
- 🐛 Doesn't work with some services

**Reported bugs**

- Codes not working, invalid or expired
- Sync issues, lost codes
- Doesn't work with some services
- Login screen freezes
- Incompatible with older devices

**Requested features**

- Increase font size of codes
- Add folder/tree organization for keys
- Implement Face ID support
- Add dark mode theme
- Allow pushing multiple codes to Chrome extension at once


## Frequently asked questions

### Is OTP Auth free?

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

### Is TOTP Authenticator free?

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

### Which has better reviews, OTP Auth or TOTP Authenticator?

TOTP Authenticator is rated higher. OTP Auth averages 4.6 out of 5 from 463 ratings, while TOTP Authenticator averages 4.7 from 3.9K ratings.

### Do OTP Auth or TOTP Authenticator have ads?

Neither OTP Auth nor TOTP Authenticator shows ads.

### Which is updated more often, OTP Auth or TOTP Authenticator?

OTP Auth ships an update every 2 weeks, and TOTP Authenticator every 2 months. Most recently, OTP Auth was updated on October 6, 2026 and TOTP Authenticator on October 15, 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.*