You finished the course. You still can't build the thing.
Altab gets you over that hump. Three minutes a day, on the calls that actually decide a system.
No account · Two free lessons in every course
Duolingo for engineering judgment. A path, a streak, and three minutes a day.
No hearts. No lockouts. A rest day is never a zero.
Your path
lesson
What is expensive to undo
lesson
One-way doors
review
Spaced review
lesson
Storing time you cannot take back
boss
The migration review
Locked.lesson
Boundaries that hold
Locked.Premium
1,000+ engineers in our first week.
Built by engineers who got in, for the ones still trying to.
Lessons 1 and 2 of every course are free.
No card, no account. Premium unlocks the rest.
Starter
Free
- Lessons 1 and 2 of every course, so every course on the shelf is a taste
- Streaks, XP and leagues, all of them
- No account, no card
Every section
Premium
$4.99 /mo
- Every lesson after the second, in every course
- Boss scenarios and spaced review
- New content as the tools change
Charged when you choose Premium · Cancel anytime · Full refund within 7 days · $36/yr
Your next call is three minutes away.
No account · Two free lessons in every course