Idea for Tembo

These past few years I have encountered the same problem each time I read a book, a blog, learn new stuff in physics, mathematics, or a new language: everything was gone few weeks later.
After reading this article from @michael_nielsen : http://augmentingcognition.com/ltm.html
I saw there was a solution: spaced repetition memorization.
Anki is a tool that is great for power users, but I was unable to adopt it, the learning curve was too important.
So I started to imagine a tool that I would like to have, and I imagined Tembo.
A simple app that lets you easily enter new stuff to learn and will manage the repetition for you.

I started implementing it on iOS.
I used SwiftUI the new development framework for iOS that Apple introduced in June 2019, that allowed me to develop the first version very rapidly.