# 100 Dev Mistakes vs 워러멜멍

The clearest difference is in-app purchases: 워러멜멍 at none against 100 Dev Mistakes's 3. 워러멜멍 also leads on iOS requirement (18.0 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. 100 Dev Mistakes sells 3 in-app purchases, starting at $2.99 per month. 워러멜멍 asks for nothing beyond the download.

## The numbers

| Metric | 100 Dev Mistakes | 워러멜멍 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | — |
| Size | 13 MB | 11 MB |
| Requires iOS | 26.0 | **18.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [hyunho lee](https://appshunter.io/developer/1502508537) | [Jisoo KANG](https://appshunter.io/developer/6806923018) |

## What reviewers say

### 100 Dev Mistakes

[App page](https://appshunter.io/ios/app/100-dev-mistakes-grow-fast/id6759643878)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1달 구독 | $2.99 | per month |
| 1년 구독 | $14.99 | per year |
| 평생 구매 | $19.99 | one-time |


### 워러멜멍

[App page](https://appshunter.io/ios/app/id6806923016)

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

**In-app purchases:** none


## Frequently asked questions

### Is 100 Dev Mistakes free?

100 Dev Mistakes is free to download, with in-app purchases available.

### Is 워러멜멍 free?

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

### Do 100 Dev Mistakes or 워러멜멍 have ads?

Neither 100 Dev Mistakes nor 워러멜멍 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.*