An app by Jacobko Studio
Sumtrix
No ads. Plays offline.
Three number puzzles in one app — Sum Drop, Sum Erase and Sudoku.
Stages 1–40 free · No ads · No account
Three modes
Sum Drop
Drop number pieces, turn them to fit, and when a row or column hits the target it shatters. The numbers above fall, and a good drop sets off a chain.
Sum Erase
A calm logic puzzle. Every row and column has a target sum. Erase the digits that don't belong until each line adds up exactly. There is always one answer, and you never have to guess.
Sudoku
The classic, no sums: every row, column and box holds each number once. Easy starts on a small 6×6 grid; every puzzle has one answer you can reach by reasoning, never by guessing.
Features
No ads, ever
Nothing between you and the puzzle.
Plays offline
No connection needed to play.
One answer, no guessing
Every Sum Erase and Sudoku puzzle is solved by reasoning alone.
Four levels, opened one by one
Easy (50 stages), Normal (60), Hard (70) and an endless Expert. Clear a level to unlock the next.
A guided first stage
A finger shows you exactly what to do the first time you play each mode.
Your iCloud, no account
Progress follows you across iPhone and iPad through your own iCloud.
One purchase. Yours for good.
Play stages 1–40 of every level in every mode free with no limits. After that, free players get 3 new stages every day, shared by all modes; unused ones do not carry over. Replaying a stage you have cleared, and failing a stage, never count toward the 3.
Unlock the full game once to play without a daily limit, with 3 hints on every Sum Erase stage and 3 Rerolls and 5 Laser Bombs on every Sum Drop stage. One-time purchase, no subscription.
