Isul is an Android application developed by DM IT Solution that provides an opportunity for users to learn numbers, letters, words, and pictures in a fun and interactive way. The app has a simple UI that is easy to navigate and is suitable for all ages.

One of the key features of Isul is that users can earn scores when completing tasks. Additionally, the app has a ranking system called Leaderboard that ranks players worldwide based on the total number of scores obtained while solving math, letter, word, and picture problems.

Overall, Isul is a great way to learn while having fun. It is a free app that can be easily downloaded on any Android device. Give it a try and see how much you can learn!