Rovosuli is an Android application developed by Twofish Kft. It is a free educational app under the Education & Reference category that aims to teach and train users in the ancient Hungarian script. The program's name, Rovosuli, means "Rovas School" in English.

The app is designed to help users take their first steps in learning the Rovas script. It includes a comprehensive set of lessons that cover the basics of the script, including the history, structure, and pronunciation of the Rovas characters. The app also features a writing practice mode that allows users to practice writing the characters themselves.

Overall, Rovosuli is a useful tool for anyone interested in learning the ancient Hungarian script. Its well-structured lessons and user-friendly interface make it an excellent choice for beginners.