Apps similar to OVault include Bitwarden, which is open source with a free version. Other options are Ente Auth, Bitwarden Authenticator, 2FA Authenticator (2FAS) and Authy. You're spoiled for choice with Authenticators like OVault: we list more than 50 alternatives for iPhone, Android, iPad, Mac and Windows.
Chronos is an open-source two-factor authentication (2FA) app designed to deliver robust security and reliable backup features. It supports both time-based (TOTP) and counter-based (HOTP) authentication methods.
Singapore
Open-source Android authenticator supporting TOTP and HOTP, material design UI, backup and restore via files, Google Drive, or Android backup, works offline, privacy-focused, no analytics or ads, suitable for securing logins on popular services.
Etopa is a two-factor-authentication app, which runs as a web server and can be accessed using a web browser or using an Android app. You can use the Etopa.de instance or host your own.
Infomaniak Auth is a free mobile application that improves and simplifies the security of Infomaniak accounts protected by two-factor authentication.
Switzerland
Duo Mobile works with Duo Security's two-factor authentication service to make logins more secure. The application generates passcodes for login and can receive push notifications for easy, one-tap authentication.
United States
Two-factor authentication app for Yandex accounts and also other QR-code based temporary codes for two-factor authentication
Russia
CryptoPhoto gives you a fast and safe way to log into your favorite participating web sites while enjoying leading-edge protection against phishing, malware attacks, and scamming.
Australia
Secure your Zoho Account with easy-to-use, multi-factor authentication. Because hackers won't give you a second chance.
India
Calculates time- and counter-based one-time passwords on iOS devices, supports QR code import, iPad interface, Notification Center widget, encrypted iCloud sync, Safari extension, Touch ID and password protection, no ads, and does not collect personal data.
Germany
EU
Secures accounts with encrypted 2FA and MFA code generation, multi-device synchronization, import/export support, breach alerts, password management, biometric and PIN protection, Apple Watch access, Home Screen widget, organizational folders, and custom icons.
