# 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 65% of TOTP Authenticator's. OTP Auth also leads on iOS requirement (12.0 vs 15.0). On price, rating, ratings volume and update cadence there is nothing between them.

Both are free to download. OTP Auth sells 1 one-off in-app purchase and TOTP Authenticator sells 4 in-app purchases, starting at $5.99 per 7 days. Whichever you choose, the download price is not the number that matters.

TOTP Authenticator holds the better App Store score, 4.8 against 4.6. Both are backed by a comparable volume of ratings — 463 and 167 respectively. Written reviews complicate that: 78% of OTP Auth's written reviews are positive against 65% of TOTP Authenticator's, so the app with the better star average is not the one people write more warmly about.

OTP Auth ships an update every 2 weeks, TOTP Authenticator every 9 days. The most recent releases landed on July 22, 2026 and September 22, 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) | **[4.8 (167 ratings)](https://appshunter.io/ios/app/totp-authenticator/id1625641322/reviews)** |
| Number of ratings | **463** | 167 |
| Positive reviews | **77.9% of reviews** | 65.3% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 9 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 22 MB | 24 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod, Apple Watch | **iPhone, iPad, iPod, Mac, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Roland Moers](https://appshunter.io/developer/659877387) | [Sparrow Code LTD](https://appshunter.io/developer/1617623165) |

## 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/id1625641322)

This app generates time-based one-time passwords (TOTP) for enhanced account security. It supports two-factor authentication (2FA) by providing 6-digit codes required by many websites and services for login. The app includes extensive tutorials to guide users through setting up 2FA with various platforms.

**Highlights:** Generates 6-digit TOTP codes, Supports two-factor authentication (2FA), QR code scanning for setup, Manual secret key entry, Over 100 step-by-step setup tutorials, Privacy focused

**Features:** Apple Watch app

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| TOTP OTP Codes (1 week) | $5.99 | per 7 days |
| TOTP OTP Codes (1 month) | $9.99 | per month |
| TOTP OTP Codes (1 year) | $59.99 | per year |
| Unlimited TOTP OTP Codes | $79.99 | one-time |


## 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 4.8 from 167 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 9 days. Most recently, OTP Auth was updated on July 22, 2026 and TOTP Authenticator on September 22, 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.*