Pure Kakuro: Cross Sums
DownloadApp details
- Updated
- 03.10.2026
- Category
- Puzzles and Quests
- Compatibility
- Android
- Package name
com.lapislazuli.kakuro- Developer
- Lapis Lazuli
- Source
- Official Google Play page
Pure Kakuro: Cross Sums APK offers a refined digital experience for fans of logic-based number puzzles. Kakuro is essentially a crossword puzzle where digits replace letters and sums replace clues. Each horizontal or vertical chain of squares has a target sum that must be achieved using digits from 1 to 9.
The core rule is simple yet challenging: no digit can repeat within a single chain. This constraint ensures that every puzzle relies on pure logic rather than guesswork or brute force, guaranteeing that there is exactly one unique solution for each grid. It is a quiet, focused gaming experience that respects your time and intelligence.
The game features four distinct difficulty levels: Easy, Medium, Hard, and Expert. Each puzzle is verified by an internal solver to ensure validity and uniqueness. Players can engage with a Daily puzzle that updates once a day, allowing everyone to solve the same challenge simultaneously.
As you complete puzzles consecutively, a streak counter tracks your consistency, adding a layer of motivation to your daily routine. The interface is clean and uncluttered, allowing you to focus entirely on the numbers and the logical deductions required to fill the grid correctly. Customization is key to a comfortable Android experience.
You can choose how the game handles errors: opt for a simple notification that a mistake exists, or have the game highlight the exact cell where the error occurred.
How to install the app
- Check the version, Android compatibility, developer and source in the app details block.
- Open the Downloads tab and use the official source or an available catalog link.
- Before installing, review app permissions and use only sources you trust.
Frequently asked questions
What is Pure Kakuro: Cross Sums?
It is a logic puzzle game similar to crossword puzzles but using digits and sums. Players fill grids so that numbers in each chain add up to a given target without repeating digits.
Does Pure Kakuro require an internet connection?
No, the app is designed to work offline. You can play all puzzles, including the daily challenge, without needing an active internet connection on your Android device.
Are there any ads or in-app purchases?
The game is free to play with no ads interrupting your experience. It requires no sign-up or account creation, ensuring a clean and private gaming session on your device.
How many difficulty levels are available?
There are four difficulty levels available: Easy, Medium, Hard, and Expert. Each level offers unique puzzles that are verified to have exactly one logical solution.
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