# Cross Math Calm: Number Grid — Math logic grids 4x4 to 7x7

> Math logic grids 4x4 to 7x7 (iPhone/iPad app by Peidus Products.)

- Source: https://appshunter.io/ios/app/cross-math-calm-number-grid/id6794371831 (this page in markdown: same URL + `.md`)
- Developer: [Peidus Products](https://appshunter.io/developer/6794370583)
- Category: Games, Puzzle
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 13.0 · 57 MB
- Languages: American English
- Released: 2026-08-05
- Data updated: 2026-08-13
- User reviews in markdown: https://appshunter.io/ios/app/cross-math-calm-number-grid/id6794371831/reviews.md

## What is Cross Math Calm?

Every row and column uses each number once - and every outlined cage must hit its target with +, -, x or /.

Cross Math Calm is the thinking person's number grid: pure logic with a pinch of arithmetic, from friendly 4x4 to fiendish 7x7.

FEATURES
- Four sizes, rising difficulty
- Cage clues turn red the moment they break
- Pencil notes and a daily grid
- Uniquely solvable, always

QUIET BY DESIGN
- No account needed
- Works offline
- No ad interruptions
- Your progress stays on your device

Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://peidusproducts.com/legal/crossmath.html

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Cross Math Calm Premium | $19.99 | per year |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Cross Math Calm Lifetime | $49.99 | one-time |



## Version history (last 1 release)

### 1.0 — 2026-08-05

No release notes.

## More apps by Peidus Products

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- [Flip Pals: Memory Match](https://appshunter.io/ios/app/flip-pals-memory-match/id6794373276)
- [Mahjong Calm: Tile Solitaire](https://appshunter.io/ios/app/mahjong-calm-tile-solitaire/id6794375141)
- [Codeword Garden – Large Print](https://appshunter.io/ios/app/codeword-garden-large-print/id6794375286)

All apps by Peidus Products: https://appshunter.io/developer/6794370583

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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 2026-08-13.*