Lapilli

Captain Submit

About this app

Stuck on an exercise? Lapilli gets you unstuck—then leaves you alone.

Lapilli is peer tutoring for middle and high school students, guided by Lya, our AI assistant. No endless threads, no scrolling: you open the app to solve a problem, and then you close it. Like a GPS for your homework.

How it works

Submit what's holding you back. A photo of the exercise, a voice recording, or a few words. Lya reads and understands.
Lya rephrases it with you. She rephrases your problem, you correct it with a single word if needed, then she pinpoints the sticking point with three quick questions. Often, that's enough to get you unstuck.
A student takes over. Still stuck? We'll put you in a 10-minute video call with a student who's an expert on the subject—someone who struggled with the same exercise before you and can explain it simply.

You leave with a worksheet. At the end, a clear summary sheet of what you've understood, which you can access whenever you want.
Helping helps you progress too.
On Lapilli, we take turns being helped and helping. Explaining a concept is the best way to master it—and your profile highlights the positive: the people you've helped, the challenges you've overcome.
A space of trust

You join Lapilli by invitation: you're always surrounded by trusted people.
Under 15? We ask for parental consent.
Sessions are short, structured, and moderated.
Your data is protected: Lapilli is designed for minors, not to keep you there.
For parents
Lapilli is neither a social network nor a chatbot that does homework for your child. The AI ​​rephrases and checks understanding; the explanation comes from another student, in a short, structured video call. The goal: to help your child overcome their difficulties, understand the concepts, and get back to their homework. Stuck tonight? Open Lapilli.