# Stellaris vs SurfaceOps by uAvionix

The clearest difference is in-app purchases: SurfaceOps by uAvionix at none against Stellaris's 2. SurfaceOps by uAvionix also leads on device support (3 vs 1) and iOS requirement (15.0 vs 26.1). Stellaris's advantage is update cadence (every 4 days vs every 2 weeks). On price and ads there is nothing between them.

Both are free to download. Stellaris sells 2 in-app purchases, starting at $2.99 per month. SurfaceOps by uAvionix asks for nothing beyond the download.

Stellaris ships an update every 4 days, SurfaceOps by uAvionix every 2 weeks. The most recent releases landed on October 10, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Stellaris | SurfaceOps by uAvionix |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 2 weeks |
| Size | 69 MB | 5 MB |
| Requires iOS | 26.1 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Caerus Digital, LLC](https://appshunter.io/developer/1844092962) | [CAVU Consulting LLC](https://appshunter.io/developer/1884389605) |

## What reviewers say

### Stellaris

[App page](https://appshunter.io/ios/app/stellaris/id6756595038)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Stellaris | $2.99 | per month |
| 100 Contract Questions | $9.99 | one-time |


### SurfaceOps by uAvionix

[App page](https://appshunter.io/ios/app/surfaceops-by-uavionix/id6762227397)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Stellaris free?

Stellaris is free to download, with in-app purchases available.

### Is SurfaceOps by uAvionix free?

SurfaceOps by uAvionix is free to download, with no in-app purchases.

### Do Stellaris or SurfaceOps by uAvionix have ads?

Neither Stellaris nor SurfaceOps by uAvionix shows ads.

### Which is updated more often, Stellaris or SurfaceOps by uAvionix?

Stellaris ships an update every 4 days, and SurfaceOps by uAvionix every 2 weeks. Most recently, Stellaris was updated on October 10, 2026 and SurfaceOps by uAvionix on October 18, 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.*