# ERC vs QY STEM

The clearest difference is device support: QY STEM at 3 against ERC's —. ERC's advantage is iOS requirement (7.0 vs 12.0). On price 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.

## The numbers

| Metric | ERC | QY STEM |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/qy-stem/id6444227932/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | — | No |
| Update frequency | — | Every 6 weeks |
| Monetization | — | Free |
| Size | 6 MB | 137 MB |
| Requires iOS | **7.0** | 12.0 |
| Devices | — | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [卫荣 肖](https://appshunter.io/developer/1249662470) | [广东群宇互动科技有限公司](https://appshunter.io/developer/1019985641) |

## What reviewers say

### ERC

[App page](https://appshunter.io/ios/app/erc-283/id1249662471)

**In-app purchases:** none


### QY STEM

[App page](https://appshunter.io/ios/app/qy-stem/id6444227932)

This offline programming application is designed for competitive programming. It offers a dedicated environment for users to practice and prepare for coding competitions.

**Highlights:** Offline programming environment, Competition preparation, Dedicated coding practice, Supports multiple devices

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

**In-app purchases:** none


## Frequently asked questions

### Is ERC free?

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

### Is QY STEM free?

QY STEM 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.*