Reckon · iPhone and iPad
A daily gym for
A daily gym for
mental maths.
Five to eight minutes a day. No calculator, no timer on screen. Reckon places you skill by skill, teaches the technique behind each question, and brings back what you're about to forget.
Download on the App Store
Free · Number Fluency included
LevelsPer skill, never one global number
Daily mixWeakness, spaced review, one challenge
Works offlineSessions cached a week ahead
A read, not a score
Placement takes three minutes and answers in words: which track is strong, which skill is holding you back — not a single number to chase.
Strategies, not drills
Every new skill arrives with a named technique — make a ten, round and correct — set out with a worked example before you practise it.
Quiet by design
One reminder a day, at most three times a week. No streak warnings, no leaderboards, no confetti. Just the work, and a record of it.