# SeekNorth Luopan vs DIY Sizer

The clearest difference is update cadence: SeekNorth Luopan at daily against DIY Sizer's every 2 weeks. DIY Sizer's advantage is iOS requirement (17.0 vs 26.4). 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.

SeekNorth Luopan ships an update daily, DIY Sizer every 2 weeks. Both last shipped on October 25, 2026.

## The numbers

| Metric | SeekNorth Luopan | DIY Sizer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Daily** | Every 2 weeks |
| Size | 7 MB | 8 MB |
| Requires iOS | 26.4 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [康 陈](https://appshunter.io/developer/1862348574) | [SANWA Inc.](https://appshunter.io/developer/1878028373) |

## What reviewers say

### SeekNorth Luopan

[App page](https://appshunter.io/ios/app/seeknorth-luopan/id6760707214)

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

**In-app purchases:** none


### DIY Sizer

[App page](https://appshunter.io/ios/app/diy-sizer/id6760861011)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SeekNorth Luopan free?

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

### Is DIY Sizer free?

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

### Do SeekNorth Luopan or DIY Sizer have ads?

Neither SeekNorth Luopan nor DIY Sizer shows ads.

### Which is updated more often, SeekNorth Luopan or DIY Sizer?

SeekNorth Luopan ships an update daily, and DIY Sizer every 2 weeks. Most recently, SeekNorth Luopan was updated on October 25, 2026 and DIY Sizer on October 25, 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.*