Optimal Authenticator vs TOTP Authenticator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Optimal Authenticator
This app provides a secure way to verify your identity for accessing other applications. It uses two-factor authentication via push notifications or verification codes, and allows organizations to register trusted devices for sign-in requests.
- Two-factor authentication
- Push notification verification
- On-app verification codes
- Trusted device registration
- Secure identity verification
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With the Optimal Authenticator, quickly and securely verify your identity for access to all of your applications. Authentication features include: Two-factor authentication: Two-factor authentication provides an extra layer of security to your account. When signing in, after entering your password, you'll be asked to provide additional verification via the app. A push notification is sent to your mobile device to alert you of a pending two-factor verification request. Simply tap on the notification to launch the app and tap Approve to complete the verification. Alternatively, you may be prompted to enter the verification code displayed in the app. Device registration: By registering your device through the app, organizations can verify that the sign-in request is coming from a trusted device.
TOTP Authenticator
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.
- 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
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The 2FA authenticator for people with more than five accounts. TOTP Authenticator generates the six-digit verification codes you need to sign in to Google, Microsoft, Facebook, Amazon, GitHub, PayPal and 1000+ other services — but with the cloud sync, browser push, and widgets that the other authenticators don't give you. — WHY PEOPLE SWITCH — • ENCRYPTED CLOUD SYNC — Back up to iCloud or Google Drive. Your data stays in your own cloud account; you stay in control. Restore on a new Phone in seconds. • PUSH CODES TO YOUR BROWSER — Pair our Chrome or Firefox extension once. From then on, one tap on your phone copies the right 2FA code to your desktop clipboard — ready to paste. Your security key never leaves your phone. We never see your codes. • LOCK SCREEN & HOME SCREEN WIDGETS — Pin your most-used accounts to your Lock Screen or Home Screen. Glance, tap, copied. Live countdown built in. • YOUR DATA TRAVELS WITH YOU — Already used our app on a different platform? Encrypted backups round-trip cleanly between iOS and other platforms via Google Drive. — PRIVACY BY DEFAULT — • Face ID or Touch ID lock. • Tap-to-reveal — codes stay hidden in the list until you tap. • Screen Security blocks screenshots and screen recording, on by default. • No analytics. No tracking. No servers that can leak your secrets. — ORGANISED THE WAY YOU THINK — • Eight colour-coded categories: Personal, Work, Social, Entertainment, Tools, Finance, Favourites, Other. • Instant search with one-tap category filter. • Drag to reorder. Pin to Favourites for one-tap access. • Pick an issuer icon from our library, or auto-match when you scan a QR code. • Add accounts by camera, by photo library QR scan, or by typing the key manually. • Works offline — codes are generated on your device. No network required to sign in. — WORKS WITH — Google, Apple ID, Facebook, Amazon, Microsoft, GitHub, PayPal, Dropbox, LinkedIn, Twitter / X, Instagram, Yahoo, WordPress, Epic Games, Blizzard, GoDaddy, Bitbucket, TeamViewer, Dashlane, Evernote — and 1000+ other services that support the RFC 6238 TOTP standard that Google Authenticator uses. — WHAT'S NEW IN v1.23 — Rebuilt from the ground up. Faster, cleaner, fully localised in English, German, and Japanese. iCloud sync rewritten for reliability. New Lock Screen widget. New search with category filter. New tap-to-reveal privacy mode. — PREMIUM — Cloud Sync and Browser Push are part of TOTP Premium — a one-time purchase, not a subscription. Try the app free; upgrade if and when you need them. Questions, bug reports, requests? Use the in-app Contact form or email hello@binaryboot.com — we read every message. App-based 2FA only. Does not receive or generate SMS codes.
Screenshots
Verdict
The clearest difference is rating: TOTP Authenticator at 4.7 against Optimal Authenticator's 3.0. TOTP Authenticator also leads on review sentiment (34% vs 0%) and ratings volume (3.9K vs 4). Optimal Authenticator's advantage is in-app purchases (none vs 2) and iOS requirement (15.0 vs 17.0). On price, update cadence, ads and device support 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. TOTP Authenticator sells 2 one-off in-app purchases. Optimal Authenticator asks for nothing beyond the download.
TOTP Authenticator holds the better App Store score, 4.7 against 3.0. That said, the two scores are not equally well evidenced: TOTP Authenticator has 3.9K ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 0% of Optimal Authenticator's written reviews are positive against 34% of TOTP Authenticator's.
Optimal Authenticator ships an update every 3 months, TOTP Authenticator every 2 months. The most recent releases landed on September 19, 2026 and September 21, 2026 respectively.
| Parameter | Optimal Authenticator | TOTP Authenticator |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (4 ratings) | 4.7 (3.9K ratings) — better |
| Positive reviews | 0.0% of reviews | 34.3% of reviews — better |
| Number of ratings | 4 | 3.9K — better |
| Update frequency | Every 3 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 80 MB | 24 MB |
| Age rating | 4+ | 4+ |
| Developer | Optimal IdM | AppyFactor |
Customer experience
Optimal Authenticator
TOTP Authenticator
Bugs and requests
Optimal Authenticator
Not enough reviews yet to summarise bugs or requests.
TOTP Authenticator
Reported bugs
5 issues- 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
5 requests- 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
In-app purchases
Optimal Authenticator
No in-app purchases
TOTP Authenticator
- TOTP Premium Features$5.99
- TOTP Default Product$5.99
Questions
Is Optimal Authenticator free?
Is TOTP Authenticator free?
Which has better reviews, Optimal Authenticator or TOTP Authenticator?
Do Optimal Authenticator or TOTP Authenticator have ads?
Which is updated more often, Optimal Authenticator or TOTP Authenticator?
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