# NumArk — Number Sense and Focus

> Number Sense and Focus (iPhone/iPad app by Hang Mi.)

- Source: https://appshunter.io/ios/app/numark/id6798563041 (this page in markdown: same URL + `.md`)
- Developer: [Hang Mi](https://appshunter.io/developer/1892841453)
- Category: Education, Entertainment
- Price: $1.99
- Age rating: 4+
- Requires: iOS 18.0 · 3 MB
- Languages: American English, Chinese (Simplified, China)
- Released: 2026-08-12
- Data updated: 2026-09-15
- User reviews in markdown: https://appshunter.io/ios/app/numark/id6798563041/reviews.md

## What is NumArk?

NumArk is a lightweight offline trainer for number sense and focus. It turns arithmetic, logic, memory, attention, and estimation practice into short playable sessions you can start anytime.

Current practice modes include:

- 24 Points: use four numbers and arithmetic operators to make 24.
- Sudoku: solve generated 9x9 logic puzzles with notes, hints, undo, and redo.
- Quick Math: answer timed arithmetic questions and build score through streaks and speed.
- Number Memory: memorize a flashed digit sequence and type it back in order.
- Schulte Grid: find shuffled numbers in sequence to train visual attention.
- Delayed Math: answer the previous equation while remembering the current one.
- Number Estimation: choose the closest result without exact calculation.
- Number Compare: decide which multiplication expression is larger, or whether both are equal.

Each practice mode supports Easy, Medium, and Hard difficulty. The app stores best results, recent sessions, and achievements locally on your device so you can track progress without an account.

NumArk works offline, does not require sign-in, and avoids leaderboards or social pressure. Use it as a compact number-sense trainer or as a quick focus challenge between tasks.


## Version history (last 3 releases)

### 1.0.2 — 2026-08-17

Fix Bug

### 1.0.1 — 2026-08-13

Fix Bug

### 1.0 — 2026-08-12

No release notes.

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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 2026-09-15.*