# ucar vs Greenstan

The clearest difference is iOS requirement: ucar at 12.0 against Greenstan's 15.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

ucar ships an update every 5 weeks, Greenstan monthly. The most recent releases landed on October 20, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | ucar | Greenstan |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Monthly** |
| Size | 25 MB | 34 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [文斌 邱](https://appshunter.io/developer/1718126070) | [Erdaulet Toibekov](https://appshunter.io/developer/1853672416) |

## What reviewers say

### ucar

[App page](https://appshunter.io/ios/app/ucar-station/id6473000004)

**Features:** macOS Compatibility

**In-app purchases:** none


### Greenstan

[App page](https://appshunter.io/ios/app/greenstan/id6760098316)

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

**In-app purchases:** none


## Frequently asked questions

### Is ucar free?

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

### Is Greenstan free?

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

### Do ucar or Greenstan have ads?

Neither ucar nor Greenstan shows ads.

### Which is updated more often, ucar or Greenstan?

ucar ships an update every 5 weeks, and Greenstan monthly. Most recently, ucar was updated on October 20, 2026 and Greenstan on October 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.*