# Calcura - Calcudoku — Math grid logic puzzles

> Math grid logic puzzles (iPhone/iPad app by WEEDS communications.)

- Source: https://appshunter.io/ios/app/calcura-calcudoku/id6794161080 (this page in markdown: same URL + `.md`)
- Developer: [WEEDS communications](https://appshunter.io/developer/432878722)
- Category: Games, Puzzle
- Price: Free
- Age rating: 4+
- Requires: iOS 16 · 4 MB
- Languages: American English
- Released: 2026-08-06
- Data updated: 2026-08-27
- User reviews in markdown: https://appshunter.io/ios/app/calcura-calcudoku/id6794161080/reviews.md

## What is Calcura?

Calcura is calcudoku — a number grid where arithmetic does the work.

Fill the grid so each row and each column contains every number exactly once. Then make each outlined cage reach its target using the operation shown: add, subtract, multiply or divide.

• Three sizes — 4x4, 5x5 and 6x6
• Every puzzle is generated fresh and verified to have exactly one solution
• Your time is recorded, with the ten best times kept per size
• Five mistakes end the puzzle — try the same one again or start a new one
• Leave mid-puzzle and pick it up later, exactly where you left off
• A built-in tutorial fills in a small grid step by step
• Works fully offline

Light arithmetic, real logic. No account, no sign-up.


## Version history (last 1 release)

### 1.0 — 2026-08-06

No release notes.

## More apps by WEEDS communications

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- [Lab Color](https://appshunter.io/ios/app/lab-color/id1197662751)
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- [오늘 뭐 먹지?-식당,메뉴 선택장애, 결정장애 해결 앱](https://appshunter.io/ios/app/id1546849788)
- [JettWatch](https://appshunter.io/ios/app/jettwatch/id6464658490)

All apps by WEEDS communications: https://appshunter.io/developer/432878722

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-27.*