Otpkey Authenticator

Otpkey Authenticator adds a multi factor layer of security for your online accounts.
Many services and IT products support One Time Password authentication to protect your account.
These passwords can be generated even when your device is in offline mode.
Otpkey Authenticator works with many of the great online services you already use, including Google, Facebook, Evernote, GitHub, Twitter, AWS and many more!
Otpkey Authenticator works for the standard TOTP or HOTP protocols.

Features
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- Secure as your device account
- Scan for QR code
- Export account as QR code
- Auto hide
- Hide your security code
- Change your account icon
- Support Face ID, Touch ID
- Copy code to clip-board
- Widget (from iOS 14)
- Watch App (from watchOS 7.0)
- Use Keychain and iCloud Keychain
Specifications
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- Type : Time-based, Counter-based
- Algorithm : SHA-1, SHA-256, SHA-512
- Digits : 6, 8, 10
- Period : 30, 60

RFC Standards
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TOTP - Time-based One-time Password Algorithm (RFC 6238)
HOTP - HMAC Based OTP Algorithm (RFC 4226)