Google Authenticator is one of the most popular options out there -- the app ties directly into your Google Account and is available across Android, iPhone, and the web.

注：iOS版Microsoft Authenticator应用在启动备份时，不管是用于个人还是企业场景，都需要登录个人微软账号。

Use authenticator apps for platforms that handle large sums, sensitive data, or crypto assets. PayPal, Venmo, Robinhood, Binance, and Coinbase support app-based 2FA.

Microsoft will make saved passwords inaccessible in its Authenticator app starting August 2025, cutting off access to stored and unsaved generated credentials.