# xynLOG vs SeamKing

The clearest difference is update cadence: xynLOG at every 6 weeks against SeamKing's every 4 months. SeamKing's advantage is iOS requirement (13.4 vs 15.0). 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.

xynLOG ships an update every 6 weeks, SeamKing every 4 months. The most recent releases landed on October 18, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | xynLOG | SeamKing |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 4 months |
| Size | 26 MB | 33 MB |
| Requires iOS | 15.0 | **13.4** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [xyndata s.r.o.](https://appshunter.io/developer/1191319008) | [Big Dog Adhesives LLC](https://appshunter.io/developer/1667824128) |

## What reviewers say

### xynLOG

[App page](https://appshunter.io/ios/app/xynlog/id1191319009)

**Features:** macOS Compatibility

**In-app purchases:** none


### SeamKing

[App page](https://appshunter.io/ios/app/seamking/id1667824126)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is xynLOG free?

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

### Is SeamKing free?

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

### Do xynLOG or SeamKing have ads?

Neither xynLOG nor SeamKing shows ads.

### Which is updated more often, xynLOG or SeamKing?

xynLOG ships an update every 6 weeks, and SeamKing every 4 months. Most recently, xynLOG was updated on October 18, 2026 and SeamKing on September 23, 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.*