Content rating
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image

About this app

Learn and practice basic math through fun, free and interactive lessons


• Learn everything from Place Values to Multiplication and Division with a comprehensive curriculum (best for grades 1-4, ages 7-14)

• Effective lessons reviewed by experts

• Fun story-based lessons that engage children and teenagers

• Downloadable lessons to continue learning even without internet access

• Currently available in English, Brazilian Portuguese, Arabic and Nigerian Pidgin.


Our high-quality lessons are designed around fun, engaging stories that students can engage with. This makes students excited to learn, and feel like they’re playing a game. Over 90% of students would recommend our lessons to a friend and over 97% have said they find Oppia lessons to be fun.


All lessons on the app are downloadable so you can play them even without consistent internet access - perfect for when students are on the go and want to learn on their own.


We have tested Oppia’s 35+ lessons to make sure they are effective. Our learners see over 50% improvements in math between pre- and post-tests.


For learners who might be new to reading, our lessons have audio voiceover options so students can listen along - making them accessible to learners of all ages!


Thousands of learners around the world have benefitted from Oppia’s effective and engaging lessons both at home and at school. While Oppia has worked well for learners who are studying on their own, they can improve even faster with the help of a parent, teacher, or older child. Feel free to use Oppia in whatever way helps your student learn best, and in whatever environment is available to you.

No ads or purchases needed

The Oppia app does not contain any advertisements or third-party content, so learners will remain safe and focused on learning while using the app.


See why thousands of learners, parents and teachers have already downloaded and love the app!

"Oppia has helped me see things I learn in real life with examples. I liked everything about Oppia. I also like the stories." - Jehdel, student

"I have always been shy at classes and I never answer my teacher because I do not like to make mistakes. Through Oppia, I feel more confident, because if I made mistakes, I have the chance to re-solve the question again, and to get the issue explained in multiple ways." - Seneen, student

"Bringing [Oppia] to the school is what will motivate the students. Students are not only supposed to learn around the 4 corners of the classroom; they are meant to learn from things they see every day. From what I saw by myself with Oppia, I can confirm this is so." - Mrs. Ndubisi, Mathematics teacher

“It feels good to find such content on the internet. I was worried about my children's education through this pandemic, these lessons are keeping my kids' minds sharp and active." - Jamal, parent

"I liked Oppia; I like the way the woman reads for me; I also like that it makes mathematics easier. I will tell others about Oppia so that mathematics can be easier for them as well." - Marvelous, student



More lessons, content, and languages are always being added on our web learning platform at oppia.org.


The Oppia app is developed by a community of passionate volunteers and experts through the Oppia Foundation - a 501(c)(3) nonprofit dedicated to making sure everyone has access to high-quality education.

You can learn more about us and our amazing team at https://oppia.org/about

If you would like to reach out for support or questions, you can do so at admin@oppia.org.
Updated on
Jun 24, 2024

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Personal info, App activity and 2 others
Data is encrypted in transit
You can request that data be deleted
Committed to follow the Play Families Policy

What's new

This release includes a new end-of-lesson survey to help better understand what works best in provided lessons, and an app start-up fix for users on Android versions 5 and 6.