# PowerMath vs Thầy Đức

The clearest difference is in-app purchases: Thầy Đức at none against PowerMath's 8. Thầy Đức also leads on ads (none vs shown) and iOS requirement (13.0 vs 15.0). On price and device support there is nothing between them.

Both are free to download. PowerMath sells 8 in-app purchases, starting at $1.99 per month. Thầy Đức asks for nothing beyond the download.

## The numbers

| Metric | PowerMath | Thầy Đức |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (190 ratings)](https://appshunter.io/ios/app/powermath-k-12-math-learning/id6446933510/reviews)** | — |
| Number of ratings | **190** | — |
| Positive reviews | 20.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | — |
| Monetization | Free with in-app purchases | — |
| Size | 266 MB | 25 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [nguyen thanh](https://appshunter.io/developer/1481436893) | [Nguyen Hai Nam](https://appshunter.io/developer/1773335503) |

## What reviewers say

### PowerMath

[App page](https://appshunter.io/ios/app/powermath-k-12-math-learning/id6446933510)

This app offers interactive math practice for students in grades 1-12, covering a wide range of topics from arithmetic to calculus. It provides step-by-step solutions, engaging quizzes, and AI-powered tools to help users improve their math skills and prepare for exams.

**Highlights:** Comprehensive K-12 math curriculum, Step-by-step problem solutions, Interactive math quizzes and games, AI-powered math solver, Graphing and fraction calculators, Personalized learning exercises

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| DeltaMath Premium Monthly Plan | $1.99 | per month |
| Three Months VIP | $1.99 | per 3 months |
| One Month VIP | $4.99 | per month |
| DeltaMathPremium HalfYear Plan | $5.99 | per 6 months |
| DeltaMath Premium Annual Plan | $9.99 | per year |
| Six Months VIP | $24.99 | per 6 months |
| 1 Year VIP | $49.99 | per year |
| No ads Pack | $14.99 | one-time |


### Thầy Đức

[App page](https://appshunter.io/ios/app/thay-uc/id6740339587)

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

**In-app purchases:** none


## Frequently asked questions

### Is PowerMath free?

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

### Is Thầy Đức free?

Thầy Đức is free to download, with no in-app purchases.

### Do PowerMath or Thầy Đức have ads?

PowerMath shows ads; Thầy Đức 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.*