OTP Auth vs TOTP Authenticator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
OTP Auth
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.
- 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
Read full descriptionHide full description
OTP Auth adds support for two-factor authentication to your iPhone and iPad. It can be used with Dropbox, Facebook, GitHub, Google Mail and many more. Make your accounts safe again! Features: - Ads free - Encrypted iCloud Sync - Siri Support - Apple Watch support - Notification Center widget - Safari extension for pasting passwords into websites - Secure application using Face ID/Touch ID (or password) - Create encrypted backups of all accounts - Import/Export encrypted accounts using AirDrop, iCloud, Dropbox, Mail, ... - Works offline All data stored by OTP Auth is stored using strong AES-256 encryption. This applies for all data. In particular, for both locally stored data as well as data stored in the iCloud Drive (when iCloud Sync is enabled). The password for those files never leaves your device such that noone but you can read your data. OTP Auth does not collect information about you or send them anywhere. You won't be asked to allow access to your contacts or your location. And most important: OTP Auth does not connect to the internet and will not send your accounts to someone else! (Unless you enable iCloud sync where an AES-256 encrypted copy of your accounts is stored in your iCloud Drive. The password for that copy will never leave your phone.) Follow me on Twitter: @otpauth
TOTP Authenticator
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.
- 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
Read full descriptionHide full description
TOTP Authenticator generates 6-digit TOTP codes. Websites (or example Arbeitsagentur, NextCloud etc.) request these codes. This security feature is called two factor authentication or 2FA. How to sign in using TOTP? 1. Go to the “Security” section 2. Enable TOTP login 3. Scan the QR code or copy the secret key into your Authenticator 4. Done — 2FA is now enabled. From now on, you’ll need to enter a TOTP code from the Authenticator app whenever you log in The app also includes over 100 step-by-step tutorials with screenshots showing how to set up TOTP for various websites. Privacy Policy: https://totp-authenticator.com/privacy-policy/appstore Terms of Use: https://totp-authenticator.com/terms-of-use/appstore
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | OTP Auth | TOTP Authenticator |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (463 ratings) | 4.8 (167 ratings) — better |
| Positive reviews | 77.9% of reviews — better | 65.3% of reviews |
| Number of ratings | 463 — better | 167 |
| Update frequency | Every 2 weeks | Every 9 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod, Apple Watch | iPhone, iPad, iPod, Mac, Apple Watch — better |
| Requires iOS | 12.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 22 MB | 24 MB |
| Age rating | 4+ | 4+ |
| Developer | Roland Moers | Sparrow Code LTD |
Customer experience
OTP Auth
TOTP Authenticator
Bugs and requests
OTP Auth
Reported bugs
3 issues- Sync issues causing data loss
- Widget not displaying codes correctly
- Crashes on certain iOS versions
Requested features
4 requests- Larger text/font size options
- Alphabetical sorting of accounts
- Automatic account refresh/update
- Ability to edit account details
TOTP Authenticator
Not enough reviews yet to summarise bugs or requests.
In-app purchases
OTP Auth
- OTP Auth Pro$3.99
TOTP Authenticator
- TOTP OTP Codes (1 week)7 Days trial$5.997 Days
- TOTP OTP Codes (1 month)7 Days trial$9.991 Month
- TOTP OTP Codes (1 year)7 Days trial$59.991 Year
- Unlimited TOTP OTP Codes$79.99
Questions
Is OTP Auth free?
Is TOTP Authenticator free?
Which has better reviews, OTP Auth or TOTP Authenticator?
Do OTP Auth or TOTP Authenticator have ads?
Which is updated more often, OTP Auth or TOTP Authenticator?
Other comparisons
