Spelling and grammar issues:

Your documentation has spelling and grammar errors. So use a capital “I” and start sentences with capital letters to make them easier to read .

Language consistency:

Your application interface mixes Italian and English. Use one language consistently.

Project clarity:

• Your documentation states that this is both a personal and client project, which is a bit confusing, could you clarify whether it's for personal use, a client, or both?
  You also mentioned earning money from ads while previously stating it was a client requirement.

I think you updated and removed the client mention ==> part where you say this project is for the client (I remember something like that).

• You claim that the project is 90% complete. But some key functionalities are still missing, it might be better to focus on finalizing core features before introducing new ones.

UI & DEV recommendations

• The first screen lacks clarity , it's not immediately clear what the buttons do, consider using more descriptive button name.
• on the second screen, the text looks crowded and poorly written, better paragraph structure & label placement would improve reading.
• Seeking additional feedback, especially on ui/ux design, could help improve the user experience.

It looks like a great idea, I'm excited to see the final result, also, I learned about a new tool, Thunkable , thanks for that.