# Cross Sum Mini: Number Logic — Fill the Grid with Logic

> Fill the Grid with Logic (iPhone/iPad app by Junjie Zhu.)

- Source: https://appshunter.io/ios/app/cross-sum-mini-number-logic/id6760963697 (this page in markdown: same URL + `.md`)
- Developer: [Junjie Zhu](https://appshunter.io/developer/1820439500)
- Category: Games, Puzzle
- Price: Free
- Age rating: 4+
- Requires: iOS 15.0 · 30 MB
- Languages: American English
- Released: 2026-03-26
- Data updated: 2026-07-23
- User reviews in markdown: https://appshunter.io/ios/app/cross-sum-mini-number-logic/id6760963697/reviews.md

## What is Cross Sum Mini?

Cross Sum Mini is a clean and satisfying logic puzzle game built around small grids, quick rounds, and smart deduction.

Each puzzle gives you row and column sum targets. Your goal is to place the right numbers, find the key breakthrough, and unlock the rest of the grid through logic.

It is easy to learn, but each board is designed to reward careful thinking rather than random guessing.

Why players love Cross Sum Mini

Small grids made for quick sessions

Simple rules with satisfying logic chains

Find one key number and let the board unfold

Smooth, focused puzzle experience

Great for fans of Kakuro, number puzzles, and logic games

A fresh kind of number puzzle

Cross Sum Mini is not about long and overwhelming boards.
It is about compact challenges that create satisfying “aha” moments.

Some puzzles are straightforward. Others ask you to look deeper, connect clues across rows and columns, and discover the one move that opens everything up.

Designed for mobile play

Short rounds that fit into your day

Clean interface with no clutter

Play at your own pace

Daily-friendly logic challenge

Whether you enjoy number games, brain training, or logic puzzles like Kakuro, Cross Sum Mini offers a fast and modern puzzle experience built for mobile.

Find the key number. Unlock the grid.


## Version history (last 2 releases)

### 1.0.1 — 2026-03-29

Minor improvments and bug fix

### 1.0 — 2026-03-26

No release notes.

## More apps by Junjie Zhu

- [Sudoku Infinity: Classic](https://appshunter.io/ios/app/sudoku-infinity-classic/id6747260909)
- [Morph Blast: Block Puzzle](https://appshunter.io/ios/app/morph-blast-block-puzzle/id6762010038)

All apps by Junjie Zhu: https://appshunter.io/developer/1820439500

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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 2026-07-23.*