Cinder is a free Android app created by FriendlyCalendars that helps you manage your contacts with ease. It is a simple yet powerful tool that allows you to swipe left to delete a contact or swipe right to keep it in your contact list. With Cinder, tidying up your contacts has never been easier.

One of the best features of Cinder is the ability to review your deleted contacts in the Trash and permanently delete them if you want. The app is user-friendly and easy to navigate, making it perfect for anyone who wants to keep their contacts organized. Additionally, it is worth noting that Cinder is built with Flutter, making it a fast and efficient app.