Press Kit | Kakuro Haven

Fact sheet

Developer: Lobster Claw Software LLC
Based in: Austin, Texas
Release date: August 20, 2026
Platforms: iOS (App Store) and Android (Google Play)
Languages: Sixteen: Dutch, English (UK), English (US), French, French (Canada), German, Hindi, Italian, Japanese, Korean, Portuguese (Brazil), Simplified Chinese, Spanish, Spanish (Mexico), Traditional Chinese, Turkish
Price: Free to download. One optional in-app purchase removes advertising permanently. No subscription.
Website: kakurohaven.com
App Store: apps.apple.com/us/app/kakuro-haven-daily-cross-sums/id6800144243
Google Play: play.google.com/store/apps/details?id=com.lobsterclawsoftware.kakurohaven
Press contact: jeremiah at lobsterclawsoftware dot com

Descriptions

Three lengths, ready to paste. No approval needed.

One-liner

A clever mix of math and logic: 2,000+ number crosswords across six board sizes.

Short, about 50 words

Kakuro Haven is a clever mix of math and logic: a number crossword where every run of cells adds up to its clue. More than 2,000 free puzzles across six board sizes, a daily challenge every morning, hints that teach rather than solve, and full offline play. No account and no ads while you solve.

Long, about 150 words

Kakuro Haven is a cross-sum puzzle game for iOS and Android, a clever mix of math and logic. Each run of cells has to add up to the number in its clue, using the digits 1 to 9 with no repeats, so every square is settled by reasoning, never guessing.

It ships with more than 2,000 free puzzles across six board sizes, from a gentle Mini grid to a 30x30 Colossal, plus a fresh daily challenge every morning. Every grid has exactly one solution, reachable by logic alone. Hints teach the next deduction rather than fill in the answer, so a finished puzzle stays earned.

On tablets, players can write digits straight into the grid with a stylus or a fingertip, or stay with the on-screen keypad. The app learns their handwriting on the device. Everything works offline, with no account, in sixteen languages. Advertising never appears while a puzzle is open, and one optional purchase removes it everywhere.

Key features

More than 2,000 free puzzles across six board sizes, from Mini through Midi, Classic, Grand and Giant to a 30x30 Colossal.
A fresh daily puzzle every morning, drawn from its own dedicated set, so finishing the main library never exhausts the dailies.
Optional handwriting input on tablets. Write digits with a stylus or a fingertip, or stay with the on-screen keypad. The app learns your handwriting so it reads you more accurately, and sets each answer in a handwriting style face. Recognition runs entirely on the device.
Newspaper mode, a newsprint and ink presentation for players who prefer the feel of paper.
Fully offline, with no account and no sign-up, in sixteen languages.
No ads while you solve, ever. Advertising never appears while a puzzle is open. This is a design contract, not a setting a player has to find.

App icon

Download the app icon (PNG, 1024 by 1024)

Screenshots

Every thumbnail links to the full resolution file. Both sets are here: the App Store versions, which carry the store caption text, and clean captures of the same screens with no caption text at all. If you need a different device size, or a screen in one of the other fifteen supported languages, just ask.

Phone, App Store versions, 1320 by 2868

A clever mix of math and logic
Six sizes, Mini to Colossal
Every puzzle its own shape
Learn as you play
A fresh puzzle every morning
No ads while you solve
Newspaper mode
Gentle on the eyes, day or night
Streaks and best times
A nudge, never a spoiler

Phone, clean, 1320 by 2868

A Midi board mid-solve
Colossal #100, the largest board at 30 by 30
The puzzle list, each tile its own grid shape
A Mini board with two digits already filled in
The home screen and the daily puzzle card
A board in progress, with no advertising on screen
Newspaper mode
The dark theme
The stats screen
A hint explaining the next deduction

Tablet, App Store versions, 2064 by 2752

Write directly on the board
A clever mix of math and logic
Six sizes, Mini to Colossal
Every puzzle its own shape
Learn as you play
A fresh puzzle every morning
No ads while you solve
Newspaper mode
Gentle on the eyes, day or night
Streaks and best times

Tablet, clean, 2064 by 2752

Writing a digit straight onto the board
A board mid-solve
Colossal #100, the largest board at 30 by 30
The puzzle list
A Mini board with digits already filled in
The home screen and the daily puzzle card
A board in progress, with no advertising on screen
Newspaper mode
The dark theme
The stats screen

Trailer

Embedded from YouTube's no-cookie host, so nothing is set until the video is played. Direct link: youtu.be/vZtc6VpZNik

Permission

You have permission to use these assets freely in coverage of Kakuro Haven. No prior approval needed.

Download everything

Download the press kit

ZIP, about 10.4 MB. Contains the app icon, all forty screenshots (captioned and clean, phone and tablet), and a plaintext fact sheet with these descriptions.

Contact

Press enquiries, review codes, and asset requests: jeremiah at lobsterclawsoftware dot com

Kakuro Haven is made by Lobster Claw Software, an independent studio in Austin, Texas.