Password Checker is a free Android app developed by Red Panda Apps. It is a simple yet useful tool that helps check the security of your passwords and generate new ones. However, it is important to note that you should never check your actual passwords as they are displayed in plain text. The app only covers brute-force attacks and not dictionary attacks, so the calculated values are not guaranteed.

The app also notifies you if your password is very popular. All generated passwords contain lowercase and uppercase letters and support all 26 letters of the Latin alphabet. The app performs all calculations offline and on your phone, ensuring your privacy. The source code is licensed under the CC-BY-NC license, and the sources can be found on GitHub. Password Checker was made using Thunkable, a platform for building mobile apps without any coding experience.