# J-Kids — Math & thinking, IQ

> Math & thinking, IQ (iPhone/iPad app by Trung Kien Bui.)

- Source: https://appshunter.io/ios/app/j-kids/id6822984444 (this page in markdown: same URL + `.md`)
- Developer: [Trung Kien Bui](https://appshunter.io/developer/6822984446)
- Category: Education
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 15.0 · 90 MB
- Languages: Vietnamese
- Released: 2026-10-20
- Data updated: 2026-10-31

## What is J?

J-Kids is a tool designed to help parents and preschool/primary school teachers quickly create math exercises (covering numbers up to 10–20) and logic-based activities. You can select the appropriate difficulty level for each stage, build a practice roadmap, provide guidance, and track learning progress directly within the app.

We offer a variety of math problems, exercises for developing logical thinking, and tasks that challenge a child’s observational skills.
The app allows you to generate worksheets that can be shared or printed for completion on paper.

Enjoy a 7-day free trial. Make a one-time purchase for lifetime access.
The app is completely ad-free.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| J-Kids Full Access | $12.49 | one-time |


## Is J safe?

Not enough ratings yet to assess J.

## Is J legit?

J-Kids has limited verification signals. The AppsHunter Legitimacy Score for J is 58 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 4 releases)

### 1.1.6 — 2026-10-28

Fixed an issue where identical questions appeared when printing exercises
Added new exercise types
Log in using email and password

### 1.1.5 — 2026-10-24

Added a custom creation feature for practicing specific types of exercises.

### 1.1.4 — 2026-10-24

Log in with Google
Add Sudoku-style puzzles
Add logic puzzles using matchsticks
Add problems involving counting triangles and squares
Optimize the balance scale puzzles (icons, view history)

### 1.0 — 2026-10-20

No release notes.

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| [MathKids: Math Games for Kids](https://appshunter.io/ios/app/mathkids-math-games-for-kids/id6820137649) | — | Free | Education |
| [Vui Học Toán: Tiểu Học](https://appshunter.io/ios/app/vui-hoc-toan-tieu-hoc/id6765643584) | — | Free | Education |

## Related topics

[homeworkout kids](https://appshunter.io/ios/topics/homeworkout-kids)

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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 2026-10-31.*