# World's Key vs Aligned AF Academy

The clearest difference is device support: World's Key at 2 against Aligned AF Academy's —. On price, in-app purchases and iOS requirement there is nothing between them.

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

## The numbers

| Metric | World's Key | Aligned AF Academy |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.8 (317 ratings)](https://appshunter.io/ios/app/worlds-key/id1494964110/reviews)** | — |
| Number of ratings | **317** | — |
| Positive reviews | 54.5% of reviews | — |
| In-app purchases | No | No |
| Ads | No | — |
| Update frequency | Every 8 days | — |
| Monetization | Free | — |
| Size | 35 MB | 9 MB |
| Requires iOS | 16.6 | **15.0** |
| Devices | **iPhone, iPad** | — |
| Age rating | 4+ | 4+ |
| Developer | [Mohammad Bzeih](https://appshunter.io/developer/1494964109) | [Emily Sudduth](https://appshunter.io/developer/1721274803) |

## What reviewers say

### World's Key

[App page](https://appshunter.io/ios/app/worlds-key/id1494964110)

This interactive educational app offers audio-visual lessons and exercises for English and Science curricula for Kindergarten and Primary levels. Students can access engaging content and assessments through an online account, supplementing their printed books.

**Highlights:** Interactive audio-visual lessons, English and Science curricula, Kindergarten and Primary levels, Interactive exercises, Assessments for lessons, Online account access

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Educational value for students
- 😍 Highly praised by young students
- 👍 Useful for international schools
- 👍 Good content for learning
- 👍 App is beneficial for international students

**What reviewers complain about**

- 😡 App is very slow
- 😡 App crashes frequently
- 😡 App is not user-friendly
- 😡 App is old and outdated
- 😡 App is heavy and lags

**Reported bugs**

- App logs out when accessing videos
- App freezes and doesn't calculate views
- App has errors in exam time calculation
- App doesn't open
- App crashes when opening or solving lessons

**Requested features**

- Add video playback speed control
- Improve app's responsiveness and speed
- Continuous improvement and development of the app
- Fix bugs and glitches
- Update the app to be more modern


### Aligned AF Academy

[App page](https://appshunter.io/ios/app/aligned-af-academy/id6497410411)

**In-app purchases:** none


## Frequently asked questions

### Is World's Key free?

World's Key is free to download, with no in-app purchases.

### Is Aligned AF Academy free?

Aligned AF Academy is free to download, with no in-app purchases.

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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.*