OTP vs TOTP Authenticator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
OTP
This app generates secure one-time passwords for two-factor authentication on your device. It supports various protocols, allows easy account setup via QR codes or manual entry, and offers robust security features like biometric locks and encrypted backups.
- TOTP & HOTP code generation
- QR code scanning for setup
- Biometric app lock (Face ID/Touch ID)
- Encrypted data export/import
- Account grouping and organization
- Dark Mode support
- iCloud sync and backup
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OTP-Auth is a beautifully designed two-factor authentication (2FA) app that generates one-time passwords on your iPhone. Supporting both TOTP and HOTP protocols, it adds an essential layer of security to all your online accounts. KEY FEATURES: - Generate TOTP & HOTP verification codes offline - Scan QR codes or add accounts manually - Tap to reveal code and copy to clipboard - Face ID & Touch ID biometric app lock - Dark Mode with system, light, and dark themes - iCloud sync and backup across devices - Export & import data with AES-256-GCM encryption - Import from Google Authenticator, 2FAS, and Aegis - 60+ branded service icons with auto-matching - Account grouping with drag-and-drop reorder - Search and sort by name, type, or custom order - Modern card-style UI with smooth animations SECURITY FIRST: Your authentication secrets never leave your device or your iCloud. Encrypted exports use AES-256-GCM. Biometric authentication keeps your codes private even if someone has your phone. IMPORT & EXPORT: Easily migrate from other authenticator apps. OTP-Auth supports encrypted JSON, plain text URI, 2FAS backup, Aegis vault, and Google Authenticator QR migration. Export your data securely with password-protected encryption. ORGANIZE YOUR WAY: Group accounts into custom folders, drag and drop to reorder, and use the built-in search to find any account instantly. Hide codes by default and reveal with a tap. PERMISSIONS: Camera access is required for scanning QR codes to add accounts. Learn more about OTP verification: https://www.wikiwand.com/en/One-time_password
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
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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
The clearest difference is review sentiment: TOTP Authenticator at 65% against OTP's 0%. TOTP Authenticator also leads on rating (4.8 vs 3.6) and update cadence (every 9 days vs every 6 months). OTP's advantage is iOS requirement (9.3 vs 15.0). On price, ads, in-app purchases and monetization model 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 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 3.6. That said, the two scores are not equally well evidenced: TOTP Authenticator has 167 ratings behind it against 18, so its average is the more settled of the two. Written reviews point the same way: 0% of OTP's written reviews are positive against 65% of TOTP Authenticator's.
OTP ships an update every 6 months, TOTP Authenticator every 9 days. The most recent releases landed on July 28, 2026 and September 22, 2026 respectively.
| Parameter | OTP | TOTP Authenticator |
|---|---|---|
| Price | Free | Free |
| Rating | 3.6 (18 ratings) | 4.8 (167 ratings) — better |
| Positive reviews | 0.0% of reviews | 65.3% of reviews — better |
| Number of ratings | 18 | 167 — better |
| Update frequency | Every 6 months | 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 | 9.3 — better | 15.0 |
| Further details — not scored | ||
| Size | 27 MB | 24 MB |
| Age rating | 4+ | 4+ |
| Developer | 浩 王 | Sparrow Code LTD |
Customer experience
OTP
TOTP Authenticator
In-app purchases
OTP
- OTPAuth Premium$1.99
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
