App of the Month Winners 2021

Roberto (age 14) from Mexico recently learned to code in App Inventor and created this interesting app that guesses your age correctly. It is fun to play the game and even more fun to try to figure out how the trick works. Keep up the great work Roberto!

Third-grade student Amy (age 9) from Korea created this fun app to share her love of games. Keep up the lovely effort Amy!

Alberto from Mexico created a peaceful scene with moving butterflies in this example of an animation in App Inventor. We hope you will find it as relaxing as we did!

Vedanshi (age 11) from India created this very cute multilevel game to share her love of cats. We hope you will enjoy it as much as we did!

Former secondary school teacher of chemistry and physics László, from Hungary, created this wonderful app to help people understand Snell's Law and the phenomenon of light refraction from the viewpoint of geometrical optics. We think it is a lovely contribution to a physics course.

Retired emeritus professor of Computer Science Fujio, from Japan, created this amazing app to explain the basic idea and mechanism of reinforcement learning (especially Q-Learning), which is a field of artificial intelligence. We needed some MIT students to help us understand the advanced ideas behind this app, and we are glad to see such deep ideas realized in App Inventor.

Undergraduate student Higor, from Brazil, created this outstanding app to help identify if a given rock found on earth is likely to be a meteorite from outer space. The app's idea and design are fantastic, and we look forward to more ingenious creations from Higor.

Bethany is a 15 year old student from Hong Kong who loves physics and wanted to share her passion with others. She created a wonderful survival game that has well-crafted applications of physics. You won't want to miss this one!

16 year old Maxim is a sophomore from the US who created a mathematically complex 3D shooter game using a ray casting method. See if you can give it a shot!

Kloe and Ava are 13 year old 7th graders from the US who originally created this app for a class project, but decided to take it one step further. They display helpful information about our ongoing plastic pollution problem. See if there's something new you can learn!

11 year old Krishna is a 6th grader from India. He created this app to help everyone maintain a healthy life by tracking all of your health information in one convenient spot. We especially love how the app can remind you if any medication you're taking is running low. Try it for yourself!

Ioannis is a school teacher from Greece and he created this staggeringly educational app to help teach students math. If you're a student, you definitely shouldn't pass this one up!

12 year old Ananya is a 7th grader from India who created this handy math quiz app. She hopes to help us improve our multiplication skills with this fun app. Complete all 10 levels to keep your brain active and become a math master!

Rishabh, 11, a 6th grader from India, created this app that uses simple algebra to inspire people to create apps and learn math. Truly inspirational!

Sairam is a 9 year old 4th grade student from India, and he created this app to be an encyclopedia of monsterverse characters because he was interested in knowing about Godzilla. What monster you like to learn about? Check it out in the app!

13 year old Mehar from India wanted to raise awareness for pollution and created this game where you can save marine life from different types of pollutants. We hope you give it a try!

Madhav, age 12, a student from India, created this astonishingly complex app to help users estimate the tiles, pavers, or planks needed to cover an area. He hopes that he can encourage people to do more DIY tiling projects. Looks like it's time for all of us to get to work!

13 year old Rishab from India loves to code and wanted to create an app for his favorite game: hangman! We certainly love playing it, and we hope you will too.

KN, a teacher from Malaysia, created this simple game just for fun. You can play alone or with a friend, perfect for any time of day.

Alan, an R&D advisor from Canada, created this versatile app to monitor heart rates during sleep utilizing an Arduino UNO and Bluetooth technology. We are always amazed to see new and different ways App Inventor is being used.