Authenticator by Gupta Technologies is a lightweight, standards-based TOTP two-factor app for Android that generates the same time-based codes as Google Authenticator — so it works with every service that supports authenticator apps. It's a clean, focused alternative for people who want a simple, privacy-respecting 2FA app.
| Feature | AuthenticatorTOTP 2FA · Android | Google AuthenticatorTOTP 2FA · Android/iOS |
|---|---|---|
| TOTP standard (RFC 6238) | Yes — works with any TOTP service | Yes |
| Platform | Android | Android & iOS |
| Focus & simplicity | Single-purpose, minimal, no clutter | Broad, tied to Google account features |
| Setup compatibility | Scan the same QR / secret keys | Scan QR / secret keys |
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Both apps implement the open TOTP standard (RFC 6238), so a 6-digit code from Authenticator is accepted anywhere Google Authenticator works — Google, Microsoft, GitHub, banking, and thousands of other services. Switching is just re-scanning the QR codes (or entering the secret keys) for your accounts.
Authenticator is deliberately small and single-purpose: add accounts, get codes, done. If you want a clean, no-frills Android 2FA app that isn't wrapped in a broader account ecosystem, it's a straightforward alternative to Google Authenticator for everyday two-factor logins.
Learn more about Authenticator — features, pricing, and how to get started.
Yes. Both use the same TOTP standard, so codes from Authenticator work with any service that supports Google Authenticator. You set up accounts by scanning the same QR codes.
Yes. Re-scan the QR codes (or enter the secret keys) for each account in Authenticator, confirm the codes work, then remove them from your old app.
Yes. TOTP codes are generated on-device from the shared secret and the current time, so Authenticator produces valid codes without an internet connection.
Authenticator by Gupta Technologies is a lightweight, standards-based TOTP two-factor app for Android that generates the same time-based codes as Google Authenticator — so it works with every service that supports authenticator apps. It's a clean, focused alternative for people who want a simple, privacy-respecting 2FA app.
