If you want two-factor login codes without installing a separate authenticator app, TOTP-Authenticator (@TotpAuthenticatorBot) is the better pick: it issues the same 30-second TOTP codes as Google Authenticator, and its code is open on GitHub. Password Audit Bot (@passwordaudit_bot) does a different job: its /check command tells you whether a password has already turned up in a known breach, sending only the first five characters of its SHA-1 hash to Have I Been Pwned, and it states that it never stores what you type. Both are free and work in English. Choose Password Audit Bot when the real question is whether an old password is still safe to keep, before you add a second factor on top of it.

A 2FA authenticator inside Telegram — generates time-based one-time codes (TOTP), the same kind Google Authenticator produces, so you don't need a separate app for two-factor login.
A password-only breach checker that never sends your full password anywhere: it uses k-Anonymity (only a truncated SHA-1 hash prefix) against the Have I Been Pwned "Pwned Passwords" API, with open-source code so you can verify the claim yourself.
TOTP-Authenticator is ahead: 68 against 64 out of 100 for Password Audit Bot. TOTP-Authenticator wins on functionality, popularity & trust. Password Audit Bot wins on usability, safety & privacy. Both are free to use.
| TOTP-Authenticator | Password Audit Bot | |
|---|---|---|
| Pricing and limits | Free | Free |
| Languages | EN | EN |
| Inline mode | no | no |
| Mini App | no | no |
| Works in groups | no | no |
| Works in channels | no | no |
| Accepts voice | no | no |
| Accepts files | no | no |
| Requires phone number | no | no |
| Requires registration | no | no |
| Shows ads | no | no |
| Official | no | no |
| Developer | — | CS-Era |
| Last check | October 22, 2026 | October 22, 2026 |
| Criterion | Weight | TOTP-Authenticator | Password Audit Bot |
|---|---|---|---|
| Functionality | 25 | 8 | 6 |
| Reliability & speed | 15 | 5 | 5 |
| Popularity & trust | 15 | 4 | 3 |
| Price & free tier | 10 | 10 | 10 |
| Usability | 10 | 6 | 7 |
| Safety & privacy | 10 | 6 | 8 |
| Freshness | 5 | 5 | 5 |
| Localization | 5 | 10 | 10 |
| No intrusive ads | 5 | 9 | 9 |
| Total | 100 | 68 | 64 |
TOTP-Authenticator is ahead: 68 against 64 out of 100 for Password Audit Bot. TOTP-Authenticator wins on functionality, popularity & trust. Password Audit Bot wins on usability, safety & privacy. Both are free to use.
TOTP-Authenticator: Free. Password Audit Bot: Free.
TOTP-Authenticator: no. Password Audit Bot: no.