FreeOTP Authenticator vs Argus
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
FreeOTP Authenticator
Generate one-time passwords for enhanced online account security. This app creates temporary codes that, when used with your regular password, significantly strengthen your login protection. It functions even without an internet connection.
- Generates one-time passwords
- Works offline (airplane mode)
- Supports Google, Facebook, GitHub, etc.
- Compatible with TOTP/HOTP protocols
- Open source software
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FreeOTP adds a second layer of security for your online accounts. This works by generating one-time passwords on your mobile devices which can be used in conjunction with your normal password to make your login nearly impossible to hack. These passwords can be generated even when your phone is in airplane mode. FreeOTP works with many of the great online services you already use, including Google, Facebook, Evernote, GitHub and many more! FreeOTP also may work for your private corporate security if they implement the standardized TOTP or HOTP protocols. This includes great enterprise solutions like FreeIPA. FreeOTP is open source and free software! Licensed under the Apache 2.0 license, you can obtain the source code for FreeOTP at https://fedorahosted.org/freeotp for review or modification. Contributions are welcome!
Argus
This open-source utility app generates Time-based One-time Passwords (TOTP) for secure authentication. It offers a lightweight, data-protected experience with support for dark mode, iCloud backups, and Apple Watch integration.
- TOTP algorithm support (RFC 6238)
- Open-source
- Lightweight design
- Full data protection
- Dark mode support
- iCloud backup
- Apple Watch compatibility
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Argus is an OTP Mobile App and support the Time-based One-time Password (TOTP) algorithm specified in RFC 6238. - Opensource - Lightwight - Full data protection - Support dark mode - Support otpauth-migration - Support Apple Watch - Support backup in iCloud
Screenshots
Verdict
The clearest difference is review sentiment: Argus at 100% against FreeOTP Authenticator's 37%. Argus also leads on rating (4.5 vs 3.2) and update cadence (every 3 days vs every 6 months). FreeOTP Authenticator's advantage is ratings volume (173 vs 2). 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. Neither carries in-app purchases, so what you see is what you pay.
Argus holds the better App Store score, 4.5 against 3.2. That said, the two scores are not equally well evidenced: FreeOTP Authenticator has 173 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 37% of FreeOTP Authenticator's written reviews are positive against 100% of Argus's.
FreeOTP Authenticator ships an update every 6 months, Argus every 3 days. The most recent releases landed on September 23, 2026 and June 5, 2026 respectively.
| Parameter | FreeOTP Authenticator | Argus |
|---|---|---|
| Price | Free | Free |
| Rating | 3.2 (173 ratings) | 4.5 (2 ratings) — better |
| Positive reviews | 37.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 173 — better | 2 |
| Update frequency | Every 6 months | Every 3 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod, Apple Watch — better |
| Requires iOS | 11.0 — better | 12.0 |
| Further details — not scored | ||
| Size | 11 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Red Hat | 晖 金 |
Customer experience
FreeOTP Authenticator
Argus
Bugs and requests
FreeOTP Authenticator
Reported bugs
3 issues- Camera not working for QR code scanning
- App crashing on launch or when unlocking accounts
- UI issues on larger iOS devices
Requested features
4 requests- Add ability to manually enter account details
- Implement iCloud/cloud backup sync
- Allow renaming and deleting of accounts
- Provide Apple Watch support
Argus
Not enough reviews yet to summarise bugs or requests.
In-app purchases
FreeOTP Authenticator
No in-app purchases
Argus
No in-app purchases
