# Grain Cloud vs DUNU

The clearest difference is update cadence: Grain Cloud at every 5 weeks against DUNU's every 4 months. DUNU's advantage is iOS requirement (13.0 vs 16.6). 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.

Grain Cloud ships an update every 5 weeks, DUNU every 4 months. The most recent releases landed on September 17, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | Grain Cloud | DUNU |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 4 months |
| Size | 15 MB | 60 MB |
| Requires iOS | 16.6 | **13.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [CNet Svenska AB](https://appshunter.io/developer/842499093) | [Shenzhen Dayin Technology Co., Ltd](https://appshunter.io/developer/1748702939) |

## What reviewers say

### Grain Cloud

[App page](https://appshunter.io/ios/app/grain-cloud/id1267320973)

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

**In-app purchases:** none


### DUNU

[App page](https://appshunter.io/ios/app/dunu/id6504411793)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Grain Cloud free?

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

### Is DUNU free?

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

### Do Grain Cloud or DUNU have ads?

Neither Grain Cloud nor DUNU shows ads.

### Which is updated more often, Grain Cloud or DUNU?

Grain Cloud ships an update every 5 weeks, and DUNU every 4 months. Most recently, Grain Cloud was updated on September 17, 2026 and DUNU on September 14, 2026.

---

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