Octopus Authenticator
Secret Double Octopus
About this app
- Age 10
- Updated Mar 15, 2026
- OS IOS / Android
Editor reviews
Octopus Authenticator is a secure two-factor authentication app that generates one-time passcodes to protect your logins across popular services. Set up accounts in seconds with a built-in QR code scanner or by entering a setup key, then get reliable offline OTP codes whenever you sign in. Designed for productivity, it supports TOTP and HOTP, quick copy, sorting and search, plus a biometric or PIN lock to keep your tokens safe. A clean interface and fast code refresh make it an ideal utility for secure login, 2FA, and account management.
Screenshots
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How to use:
1. Download and open Octopus Authenticator, then grant camera access for QR scanning if prompted.
2. Create a PIN and enable Face ID or fingerprint lock to secure the app.
3. On the website or service you are protecting, choose two-factor authentication, then scan the displayed QR code or enter the setup key in the app.
4. Confirm setup by entering the 6 digit code shown in the app back on the website to complete 2FA enrollment.
5. When logging in later, open the app and copy the current code to authenticate, then organize entries with names or tags and optionally export an encrypted backup for safekeeping.