Best Kakuro Apps for iOS and Android (2026)
A comparison of the top Kakuro apps available this year. Features, pricing, and which one is worth your time.
The best kakuro apps share three things. Clean grids. Strong pencil mark tools. Quick undo. Below are the top picks for iOS and Android in 2026.
KakuroZen (our pick)
KakuroZen runs on iOS and Android. Easy, Medium, Hard, and Expert levels. Pencil mark toggle. Auto-save. Daily puzzle streak tracker. Free to download. No ads if you go Premium ($2.99/month or $14.99/year).
Why we like it: the grid stays clean. The pencil mark tool is the best in the space. And the daily streak feature builds the habit we keep talking about.
Kakuro Conquest
Kakuro Conquest is a popular web-based kakuro online game. It has an iOS wrapper but the Android app is weak. Good for browser play. Free, ad-supported.
Best fit if you want fast browser puzzles and do not care about a streak tracker.
Cross Sums by Penny Press
Penny Press has a Cross Sums app on both stores. Big puzzle library. Older interface. No pencil mark toggle. Most solvers find it hard to enjoy after a week.
Skip unless you already love the Penny Press print magazines.
Logic Puzzle Online apps
Some general logic puzzle apps include kakuro. Brain Yoga and Logic Pic are two. The kakuro options inside these apps are small. You finish all the included puzzles in a week.
Better as variety apps than as a main kakuro home.
What to look for in a kakuro app
Pencil mark toggle is the top must-have. Without it, mid-level and up gets painful.
Undo button. One tap to roll back a wrong digit.
Auto-save. Close the app and come back later without losing your spot.
Daily puzzle. A new grid each day keeps the habit going.
Ad-free option. Free apps are fine for trial. Paid is worth it for daily use.
Free or paid?
Try free for two weeks. If the app sticks (you solve at least 5 puzzles), pay for ad-free. Two dollars a month is less than one print book and you get unlimited puzzles.