# TopLineFancyYarn vs iYoung MkIV

The clearest difference is update cadence: iYoung MkIV at every 2 days against TopLineFancyYarn's fortnightly. On price, ads, in-app purchases and device support there is nothing between them.

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

TopLineFancyYarn ships an update fortnightly, iYoung MkIV every 2 days. The most recent releases landed on October 12, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | TopLineFancyYarn | iYoung MkIV |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 2 days** |
| Size | 67 MB | 11 MB |
| Requires iOS | 10.0 | **9.3** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Top Line (Ningbo) Textile Co., Ltd.](https://appshunter.io/developer/1532395924) | [Fabio Elia](https://appshunter.io/developer/1449001502) |

## What reviewers say

### TopLineFancyYarn

[App page](https://appshunter.io/ios/app/toplinefancyyarn/id1532395922)

**Features:** macOS Compatibility

**In-app purchases:** none


### iYoung MkIV

[App page](https://appshunter.io/ios/app/iyoung-mkiv/id1544453669)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is TopLineFancyYarn free?

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

### Is iYoung MkIV free?

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

### Do TopLineFancyYarn or iYoung MkIV have ads?

Neither TopLineFancyYarn nor iYoung MkIV shows ads.

### Which is updated more often, TopLineFancyYarn or iYoung MkIV?

TopLineFancyYarn ships an update fortnightly, and iYoung MkIV every 2 days. Most recently, TopLineFancyYarn was updated on October 12, 2026 and iYoung MkIV on November 3, 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.*