Kakuro Haven: Daily Cross Sums

All 2,000+ puzzles are free, every one has exactly one solution, and no ad ever appears while you are solving. Plus a bonus puzzle lands every morning.

Kakuro is the number crossword: fill every run of white squares so it adds up to its clue, and never repeat a digit inside a run. Pure logic. No guessing, basic arithmetic, and no timer breathing down your neck.

2,000+ PUZZLES, ALL FREE Six board sizes, from a gentle 3x3 Mini to the 30x30 Colossal. Nothing is locked, there are no packs to buy, and there is no limit on how many you can solve in a day.

A NEW PUZZLE EVERY MORNING The daily is the same puzzle for everyone on the same date, with no account and no connection required. Keep a streak going. The dailies are their own puzzles and appear in no other tier, so finishing the whole library still leaves one waiting tomorrow.

WRITE ANSWERS IN YOUR OWN HAND, ON iPad Write digits straight into the cells with Apple Pencil or a finger. It is the closest thing to pen and paper. The app learns your handwriting. Everything stays on your iPad: nothing is uploaded, nothing is downloaded, and recognition needs no connection at all.

EXACTLY ONE SOLUTION, REACHABLE BY LOGIC ALONE Every grid is checked before it ships: one solution, no guessing, no dead ends, and no point where the only way forward is to try something and see. Grids run from 3x3 up to 30x30, so a puzzle for the bus and a puzzle for the evening are both here.

NO ADS WHILE YOU SOLVE. EVER. While a puzzle is open the screen belongs to the puzzle. Not a banner, not an interstitial, not a "watch this to continue". Ads keep the puzzles free and appear only between puzzles and on the menus.

TOOLS THAT TEACH, NOT TOOLS THAT SOLVE

• Pencilmarks in five colors, for following more than one line of reasoning on the same grid at once
• A dedicated notes mode, so inking an answer never wipes out your pencilmarks
• Auto-fill candidates, which never puts back a digit you ruled out yourself
• A combination row showing every way the current clue can be made
• Hints that explain the deduction and then leave the move to you
• Virtually unlimited undo and redo

MADE TO BE COMFORTABLE

• Works fully offline, free. No account, no sign-up, no connection needed
• Pinch to zoom, double-tap to zoom in and back, and one tap to snap the board back
• Auto-advance to the next empty cell in the run, if you want it
• Light and dark modes
• A newspaper board style, set in newsprint and ink
• Larger numbers, adjustable error checking, and a choice of tap order
• Built for iPhone and iPad, with a layout made for each
• In 16 languages: English (US and UK), Spanish (Spain and Mexico), French (France and Canada), German, Italian, Dutch, Portuguese, Turkish, Hindi, Japanese, Korean, and Chinese (Simplified and Traditional)
• Your best time for every puzzle, kept on your device

ONE PURCHASE, IF YOU CHOOSE. NEVER A SUBSCRIPTION. The free app is the whole game. If you would rather see no ads at all, a single optional purchase removes them permanently. No subscription, no recurring anything.

Kakuro is also known as cross sums, kakkuro, or the Japanese number crossword. If you like sudoku, killer sudoku, nonograms, or the puzzle page of a newspaper, this is the one you have been missing.