Frequently Asked Questions

Here you can find answers to the most common questions we get. If you can't find an answer to your question, please contact us at

What is Retinello?

Who are you?

How do I get started?

How do I create flashcards?

How do I practice?

What do you mean by chatting with your book?

How many books can I upload?

What is a group?

What are credits?

How do I get more credits?

I am on the Ambitious plan but it says that I am out of credits?

The AI was wrong, why?