# Cygnus Astro vs OnStep Controller

The clearest difference is iOS requirement: Cygnus Astro at 15.1 against OnStep Controller's 17.0. 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.

## The numbers

| Metric | Cygnus Astro | OnStep Controller |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (2 ratings)](https://appshunter.io/ios/app/cygnus-astro/id6745795760/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 days | — |
| Monetization | Free | — |
| Size | 32 MB | 7 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Christopher Ventura](https://appshunter.io/developer/1742045592) | [Gray Digital Arts LLC](https://appshunter.io/developer/1895978400) |

## What reviewers say

### Cygnus Astro

[App page](https://appshunter.io/ios/app/cygnus-astro/id6745795760)

Control your astrophotography equipment remotely from your mobile device. This app provides a touch-friendly interface to connect, monitor, and manage your N.I.N.A. software and connected gear, simplifying your setup in the field.

**Highlights:** Remote equipment control, N.I.N.A. software integration, Mobile touch interface, Real-time exposure preview, Open-source and free

**Features:** macOS Compatibility

**In-app purchases:** none


### OnStep Controller

[App page](https://appshunter.io/ios/app/onstep-controller-gda/id6765521295)

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

**In-app purchases:** none


## Frequently asked questions

### Is Cygnus Astro free?

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

### Is OnStep Controller free?

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

### Do Cygnus Astro or OnStep Controller have ads?

Neither Cygnus Astro nor OnStep Controller shows ads.

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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.*