# OnStep Controller vs AstroVitals

OnStep Controller and AstroVitals are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

## The numbers

| Metric | OnStep Controller | AstroVitals |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.7 (3 ratings)](https://appshunter.io/ios/app/astrovitals/id6789724589/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 3 weeks |
| Monetization | — | Free |
| Size | 7 MB | 9 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Gray Digital Arts LLC](https://appshunter.io/developer/1895978400) | [MAXIMILIAN BOTEV](https://appshunter.io/developer/6789724591) |

## What reviewers say

### OnStep Controller

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

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

**In-app purchases:** none


### AstroVitals

[App page](https://appshunter.io/ios/app/astrovitals/id6789724589)

Monitor your telescope's vital signs remotely from your iPhone, iPad, or Apple Watch. View guiding, focus, image quality, and sequence progress on a glanceable dashboard. Receive smart alerts and optionally control your imaging session.

**Highlights:** Live guiding graphs and stability scores, Autofocus V-curve visualization, Full sequence tree with progress, 3D mount position and target altitude, Apple Watch app and complications, Home and lock screen widgets, Smart alerts for image quality and guiding

**Features:** macOS Compatibility, Apple Watch app

**In-app purchases:** none


## Frequently asked questions

### Is OnStep Controller free?

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

### Is AstroVitals free?

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

### Do OnStep Controller or AstroVitals have ads?

Neither OnStep Controller nor AstroVitals 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.*