The "Hips Don't Lie" singer and her Spanish soccer star boyfriend Gerard Pique are parents to Milan, two, and Sasha, nine months, reported Contactmusic.
"I'm always online looking for advice and learning about being a mother. I know there are other moms who are also looking for tips and suggestions. That's the idea behind it.
"Moms can use the app to find ideas and support, and teachers can also use it to guide and plan their curriculum to help kids learn," she said.
The app will be available later this autumn.