One of the main features of DroidOTP is that it supports both strict 4-digit pins and longer alphanumeric pins. Additionally, it allows generating a new password without re-entering the PIN for 50 seconds, and it displays the current epoch time. Another useful feature is that it supports taking the generated password into the clipboard, making it easy to paste into other applications.

Overall, DroidOTP is a reliable and easy-to-use OTP client implementation that can be a useful tool for anyone looking for strong authentication. It is also worth noting that the application is completely free and does not require any in-app purchases or subscriptions.