التبيان التمهيدي is an interactive educational application for Android devices that offers a digital version of the book of clarification in education in the Koran - preliminary. The app offers an excellent platform for learning the Arabic language with a focus on letters of the alphabet, teaching reading, writing, and exercises. The app allows learners to interact with the Arabic letters, hear their names, and see their different forms. Additionally, the app includes the song of songs, which helps learners to memorize the characters and accompanying hymns.

One notable feature of التبيان التمهيدي is the teaching of reading and writing. The app displays the characters in a single, compounded state with other characters to help learners pronounce them correctly in a sequentially worded manner. Furthermore, the app offers training to write combinations and words. The interactive exercises in the app help learners to test their knowledge and show them whether their solutions are correct or need to be retried.

Finally, the app includes options for repetition, reading-related, and spelling, which help learners to reinforce their learning. Overall, التبيان التمهيدي is a fantastic educational tool for anyone looking to learn the Arabic language in an interactive and engaging way.