# Unity SPR vs City Gold

The clearest difference is iOS requirement: City Gold at 13.0 against Unity SPR'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.

Unity SPR ships an update every 3 weeks, City Gold every 2 weeks. Both last shipped on October 30, 2026.

## The numbers

| Metric | Unity SPR | City Gold |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Size | 37 MB | 38 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Atlas Copco AB](https://appshunter.io/developer/917660617) | [Artifitia Solutions LLP](https://appshunter.io/developer/1664442960) |

## What reviewers say

### Unity SPR

[App page](https://appshunter.io/ios/app/unity-spr/id1641707057)

**Features:** Vision Pro support

**In-app purchases:** none


### City Gold

[App page](https://appshunter.io/ios/app/city-gold/id6463396485)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Unity SPR free?

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

### Is City Gold free?

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

### Do Unity SPR or City Gold have ads?

Neither Unity SPR nor City Gold shows ads.

### Which is updated more often, Unity SPR or City Gold?

Unity SPR ships an update every 3 weeks, and City Gold every 2 weeks. Most recently, Unity SPR was updated on October 30, 2026 and City Gold on October 30, 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.*