# showdoc vs GRNano

The clearest difference is update cadence: GRNano at daily against showdoc's every 5 months. showdoc's advantage is iOS requirement (12.0 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.

showdoc ships an update every 5 months, GRNano daily. The most recent releases landed on October 11, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | showdoc | GRNano |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Daily** |
| Size | 41 MB | 106 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [健雄 吴](https://appshunter.io/developer/1461728159) | [上海傅利叶智能科技有限公司](https://appshunter.io/developer/1453844765) |

## What reviewers say

### showdoc

[App page](https://appshunter.io/ios/app/showdoc/id1485879683)

**Features:** macOS Compatibility

**In-app purchases:** none


### GRNano

[App page](https://appshunter.io/ios/app/grnano/id6776491572)

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

**In-app purchases:** none


## Frequently asked questions

### Is showdoc free?

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

### Is GRNano free?

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

### Do showdoc or GRNano have ads?

Neither showdoc nor GRNano shows ads.

### Which is updated more often, showdoc or GRNano?

showdoc ships an update every 5 months, and GRNano daily. Most recently, showdoc was updated on October 11, 2026 and GRNano on October 21, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*