# Tư Duy Số vs Chembloom

The clearest difference is in-app purchases: Tư Duy Số at none against Chembloom's 3. Tư Duy Số also leads on ads (none vs shown) and iOS requirement (13.0 vs 15.0). On price, rating, ratings volume and device support there is nothing between them.

Both are free to download. Chembloom sells 3 one-off in-app purchases. Tư Duy Số asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Tư Duy Số against 5.0 for Chembloom. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

## The numbers

| Metric | Tư Duy Số | Chembloom |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/tu-duy-so/id6754550082/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/chembloom/id6790741973/reviews) |
| Number of ratings | **2** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | — | Every 5 days |
| Monetization | **Free** | Free with in-app purchases |
| Size | 18 MB | 51 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Do Nam](https://appshunter.io/developer/1848808297) | [MAI VU](https://appshunter.io/developer/848393658) |

## What reviewers say

### Tư Duy Số

[App page](https://appshunter.io/ios/app/tu-duy-so/id6754550082)

Enhance your memory and focus with this brain training game. Challenge yourself to find numbers in ascending order quickly and accurately. It's designed to improve concentration and spatial thinking for users of all ages.

**Highlights:** 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

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Chembloom

[App page](https://appshunter.io/ios/app/chembloom/id6790741973)

This app helps high school students master chemistry with AI-powered problem solving, practice tests, and interactive learning tools. It offers personalized study plans and gamified elements to make learning engaging and effective.

**Highlights:** AI tutor for step-by-step problem solving, Practice tests aligned with graduation exams, Interactive periodic table and reaction database, Gamified learning with streaks and leaderboards, Flashcards and mind maps for concept review, Equation balancing tool

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 30 Lượt giải AI | $0.99 | one-time |
| 100 lượt giải AI | $2.99 | one-time |
| 300 lượt giải AI | $7.99 | one-time |


## Frequently asked questions

### Is Tư Duy Số free?

Tư Duy Số is free to download, with no in-app purchases.

### Is Chembloom free?

Chembloom is free to download, with in-app purchases available.

### Which has better reviews, Tư Duy Số or Chembloom?

Tư Duy Số and Chembloom are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.

### Do Tư Duy Số or Chembloom have ads?

Chembloom shows ads; Tư Duy Số does not.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*