# Tư Duy Số — Rèn luyện trí nhớ và tập trung

> Brain training game to improve memory, focus, and reflexes by finding numbers. (iPhone/iPad app by Do Nam.)

- Source: https://appshunter.io/ios/app/tu-duy-so/id6754550082 (this page in markdown: same URL + `.md`)
- Developer: [Do Nam](https://appshunter.io/developer/1848808297)
- Category: Education
- Price: Free
- Rating: 5.00/5 from 2 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 13.0 · 18 MB
- Languages: American English
- Released: 2025-10-28
- Data updated: 2026-07-31
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/tu-duy-so/id6754550082/reviews.md

## What is Tư Duy Số?

NUMBER SEQUENCE - Brain Training & Memory Game
Train your brain with:
- Short-term memory
- Focus and concentration
- Spatial thinking
- Quick reflexes
HOW TO PLAY:
Find numbers from 1 to N in ascending order on the screen. Numbers are randomly placed, and you need to find them as quickly and accurately as possible.

FEATURES:
- Choose difficulty from 10-100 numbers
- Personal best time tracking
- Sound effects
- Hint system (can be toggled)
Suitable for all ages, especially useful for students who want to improve their concentration in studying.
Based on brain training methods by Dr. Tran Van Phuc.

## Key features

- Short-term memory training
- Focus and concentration exercises
- Spatial thinking development
- Quick reflexes enhancement
- Difficulty levels (10-100 numbers)
- Personal best time tracking
- Hint system

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/tu-duy-so/id6754550082/reviews.md

### 5/5 — 10đ

*2026-03-12*

App quá hay thầy ơi,

## Frequently asked questions about Tư Duy Số

### What is Tư Duy Số?

Tư Duy Số is a brain training game designed to improve short-term memory, focus, concentration, spatial thinking, and reflexes. Players find numbers in ascending order on the screen.

### How does Tư Duy Số help with studying?

Tư Duy Số is particularly useful for students aiming to improve their concentration and cognitive abilities, which can positively impact their study habits and academic performance.

### What are the difficulty levels in Tư Duy Số?

Tư Duy Số offers adjustable difficulty by allowing you to choose the number of items to find, ranging from 10 to 100 numbers. This allows for progressive challenge as your skills improve.

### Does Tư Duy Số track progress?

Yes, Tư Duy Số features personal best time tracking for each difficulty level. This allows you to monitor your improvement and aim for new personal records.

### Is Tư Duy Số suitable for all ages?

Yes, Tư Duy Số is suitable for all ages, with an age rating of 4+. It is especially beneficial for students looking to enhance their cognitive functions.

### Does Tư Duy Số have ads?

No, Tư Duy Số does not contain advertisements. It provides an uninterrupted brain training experience.

### What devices can I play Tư Duy Số on?

Tư Duy Số is available on iPhone, iPad, and iPod devices, offering a versatile platform for users to train their brains.

### When was Tư Duy Số last updated?

Tư Duy Số was last updated on October 28, 2025, with version 1.0. This indicates it is a new release.

## Version history (last 1 release)

### 1.0 — 2025-10-28

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 2026-07-31.*