# AStars vs DevPrep

The clearest difference is in-app purchases: AStars at none against DevPrep's 4. DevPrep's advantage is iOS requirement (13.0 vs 17.6). On price, ads and device support there is nothing between them.

Both are free to download. DevPrep sells 4 one-off in-app purchases. AStars asks for nothing beyond the download.

## The numbers

| Metric | AStars | DevPrep |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/astars/id6756767694/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | — |
| Monetization | Free | — |
| Size | 16 MB | 25 MB |
| Requires iOS | 17.6 | **13.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Sakchham Sangroula](https://appshunter.io/developer/1862697944) | [Shohruxbek Atavullayev](https://appshunter.io/developer/1859528937) |

## What reviewers say

### AStars

[App page](https://appshunter.io/ios/app/astars/id6756767694)

This revision tool uses a card-stack interface for quick learning and an AI chat to explain difficult questions. It also provides access to a vault of past exam papers.

**Highlights:** Swipe to study interface, AI-powered question explanation, Past paper vault, Exam revision tool, Intuitive card stack

**In-app purchases:** none


### DevPrep

[App page](https://appshunter.io/ios/app/devprep-coding-interview-prep/id6775566429)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Dart | $12.99 | one-time |
| Unlock JavaScript | $12.99 | one-time |
| Unlock Python | $12.99 | one-time |
| Unlock Swift | $12.99 | one-time |


## Frequently asked questions

### Is AStars free?

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

### Is DevPrep free?

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

### Do AStars or DevPrep have ads?

Neither AStars nor DevPrep shows ads.

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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.*