# AA Power vs 數之寶島

The clearest difference is iOS requirement: AA Power at 8.0 against 數之寶島's 12.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

AA Power ships an update every 7 months, 數之寶島 every 6 months. The most recent releases landed on October 24, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | AA Power | 數之寶島 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 6 months** |
| Monetization | Free | — |
| Size | 3 MB | 175 MB |
| Requires iOS | **8.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kevin Chan](https://appshunter.io/developer/434069238) | [The University of Hong Kong](https://appshunter.io/developer/451384643) |

## What reviewers say

### AA Power

[App page](https://appshunter.io/ios/app/aa-power/id1346468126)

This AI-powered platform helps students aged 6-18 improve their English grammar and reading skills. It offers personalized training based on individual weaknesses and strengths, with a vast question bank and progress tracking.

**Highlights:** AI-driven personalized learning paths, Extensive question bank, Grammar and reading skill modules, Progress tracking and analysis, Leaderboard for peer comparison, Report cards for proficiency summary

**Features:** macOS Compatibility

**In-app purchases:** none


### 數之寶島

[App page](https://appshunter.io/ios/app/id6744041597)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is AA Power free?

AA Power is free to download, with no in-app purchases.

### Is 數之寶島 free?

數之寶島 is free to download, with no in-app purchases.

### Do AA Power or 數之寶島 have ads?

Neither AA Power nor 數之寶島 shows ads.

### Which is updated more often, AA Power or 數之寶島?

AA Power ships an update every 7 months, and 數之寶島 every 6 months. Most recently, AA Power was updated on October 24, 2026 and 數之寶島 on October 15, 2026.

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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.*