Auth0 Guardian vs FactorCat
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Auth0 Guardian
This app provides multi-factor authentication by sending push notifications to your device for easy approval or denial of account access. It can also generate one-time passwords for secure logins.
- Push notification authentication
- Allow/deny account access
- One-time password generation
- Multi-factor authentication
- Secure login
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Auth0 Guardian is a mobile app that can deliver push notifications to a user’s pre-registered device (typically a mobile phone or tablet) from which a user can immediately allow or deny account access via the press of a button. It can also generate one-time passwords if that is preferred. Note for developers: Auth0 Guardian is one of the multi factor authentication options that can be used within the Auth0 identity platform (https://auth0.com). You can enable it with a single switch. You don’t have to change your apps to start supporting multi factor authentication.
FactorCat
This app streamlines multi-factor authentication by replacing manual code entry with a single tap approval via push notification. It offers secure, encrypted storage of your authentication secrets and supports two vault types for flexible recovery and enhanced security.
- One-tap MFA approval
- Automatic code filling via browser extension
- Encrypted TOTP secrets storage
- Cloud Vault for easy recovery
- Locked Vault with zero-trust encryption
- Standalone authenticator functionality
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FactorCat is a modern authenticator that replaces the code-copying ritual with a single tap. How it works: Install the browser extension on your computer. When you hit a login page that needs a code, FactorCat sends a push notification to your phone. Tap approve, confirm with Face ID or fingerprint, and the code fills in automatically. No switching apps. No squinting at timers. No mistyped digits. Security you can trust: Your TOTP secrets are stored on your device, encrypted and protected by biometrics. FactorCat never holds your passwords — MFA and passwords stay separate by design, so there's no single point of failure for your online identity. Two vault types: • Cloud Vault — cloud-managed keys for easy recovery. Great for getting started with MFA or for low-risk accounts. FactorCat can generate codes on your behalf when your phone is offline. • Locked Vault — zero-trust encryption using a model trusted by leading security products. You hold the keys. FactorCat cannot read your secrets. Backup via encrypted cloud blobs recoverable only with your emergency kit. Getting started takes 2 minutes: 1. Download FactorCat 2. Add your first token (scan a QR or let the browser extension capture it) 3. Pair with the extension via one QR scan 4. Done — your next login fills itself in Also works standalone. Use FactorCat as a regular authenticator with no account or extension required. When you're ready for auto-fill, pair up anytime. Free to use. No ads. No tracking. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.factorcat.com/privacy/
Screenshots
Verdict
The clearest difference is rating: FactorCat at 5.0 against Auth0 Guardian's 2.4. Auth0 Guardian's advantage is in-app purchases (none vs 2) and ratings volume (113 vs 1). 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. FactorCat sells 2 in-app purchases, starting at $12.99 per year. Auth0 Guardian asks for nothing beyond the download.
FactorCat holds the better App Store score, 5.0 against 2.4. That said, the two scores are not equally well evidenced: Auth0 Guardian has 113 ratings behind it against 1, so its average is the more settled of the two.
Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on September 17, 2026 and September 18, 2026 respectively.
| Parameter | Auth0 Guardian | FactorCat |
|---|---|---|
| Price | Free | Free |
| Rating | 2.4 (113 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 14.6% of reviews | — |
| Number of ratings | 113 — better | 1 |
| Update frequency | Every 3 months | Every 3 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Freemium |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 20 MB | 47 MB |
| Age rating | 4+ | 4+ |
| Developer | Auth0 | Capital F |
Customer experience
Auth0 Guardian
FactorCat
In-app purchases
Auth0 Guardian
No in-app purchases
FactorCat
- FactorCat Supporter$12.991 Year
- FactorCat Pro$24.991 Year
Questions
Is Auth0 Guardian free?
Is FactorCat free?
Which has better reviews, Auth0 Guardian or FactorCat?
Do Auth0 Guardian or FactorCat have ads?
Which is updated more often, Auth0 Guardian or FactorCat?
Other comparisons
