AlbertPrepthe notebook
Mental math, five minutes a day

Numbers in your head.
Not on your phone.

Albert Prep is a daily mental-math notebook. A short diagnostic, one small session a day, and a spaced-repetition engine that remembers for you — until you do not need it to.

Test your level — free, no signupStart free →

✶ Founding members train free for life — we’re tuning Prep with our first students.

How it works
01

Take the diagnostic

18 questions map your level across six themes — number sense, percents, ratios, and more. Every session after is built for you.

02

Do your daily page

12 questions, about 5 minutes. Spaced repetition decides what you review and when, so the schedule does the remembering.

03

Watch your level climb

A CEFR-style scale from MA1 to MC1. Streaks keep you honest, levels prove progress, leaderboards make it a sport.

Preparing for an exam?
What is inside
Spaced repetition
A Leitner engine schedules every question at the moment you are about to forget it.
Six themes
Representations, operations, percents, ratios, orders of magnitude, data reading.
Daily streaks
One short session a day keeps the chain alive. Loss aversion, used for good.
Timed challenges
Ten questions against the clock. Beat your best, or beat everyone else.
Mistake journal
Every wrong answer is recorded, explained, and re-served until it sticks.
Leaderboards
Streaks, weekly XP, accuracy, mastery — pick your arena.
Founding members

Built with our first 1,000 students.

We’re opening the first 1,000 founding accounts while we tune Prep with early students. Founding members get the full product free, for life — no card — and a direct line to shape what we build. Prep becomes a paid service (€9/month) later; founding access never changes.

Become a founding member →