TOTP, OTP, 2FA, and MFA in one iPhone authenticator
TOTP is a common form of one-time password used in two-factor and multi-factor authentication. Authenticator stores the setup secret from a compatible service and shows the current time-based code so you can enter it during login.
Login codes without another app account
Authenticator does not require an app account. Add TOTP codes from the services you already use, protect access locally, and keep each service's recovery codes in a separate safe place.
Plain-language definitions
OTP means one-time password. TOTP means time-based one-time password. 2FA means two-factor authentication. MFA means multi-factor authentication. In everyday app searches, people often use these terms for the same login-code workflow.
Authenticator focuses on that workflow: add a compatible account, view the current code, copy it, and keep your codes protected on Apple devices.
| Term | Meaning in this app context |
|---|---|
| OTP | A one-time login code |
| TOTP | A one-time code based on time and a setup secret |
| 2FA | A second factor after your password |
| MFA | Multiple factors used to sign in more securely |
What Authenticator does not replace
Authenticator does not replace the service's password, passkey, hardware key, SMS flow, push approval, or recovery process. It stores and generates TOTP-style codes only when the service supports them.
Product screenshots
Questions people ask
What is Authenticator 2FA TOTP OTP MFA?
Authenticator 2FA TOTP OTP MFA is an iPhone authenticator app for time-based login codes. Add accounts by scanning a QR setup code, importing a QR image, or entering a setup key manually, then copy the current code when signing in.
Is Authenticator affiliated with Google Authenticator, Microsoft Authenticator, or other services?
No. Authenticator is independent. It can store codes for services that support TOTP setup, but it does not claim affiliation with Google, Microsoft, GitHub, Discord, Binance, Steam, Yandex, Gosuslugi, or other third-party services.
Does Authenticator need an account?
No app account registration or app login is required. You add TOTP codes from the services you already use.
Can Authenticator back up my 2FA codes?
Premium can unlock encrypted iCloud backup and restore through Apple iCloud Drive and iCloud Keychain. You should still keep each service's backup codes or recovery methods.
What data does Authenticator collect?
Authenticator can collect product interaction analytics that are not linked to your identity and are not used for tracking. Real TOTP secrets, QR payloads, passcodes, salts, hashes, account labels, and issuer labels stay out of logs, analytics, and crash reports.