# OnStep Controller vs MLAstro Hub

The clearest difference is iOS requirement: MLAstro Hub at 15.0 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 | OnStep Controller | MLAstro Hub |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/mlastro-hub/id6767999378/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 5 days |
| Monetization | — | Free |
| Size | 7 MB | 86 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Gray Digital Arts LLC](https://appshunter.io/developer/1895978400) | [To Ngoc Khanh](https://appshunter.io/developer/1732662702) |

## 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


### MLAstro Hub

[App page](https://appshunter.io/ios/app/mlastro-hub/id6767999378)

Control your OnStep telescope mount wirelessly from your phone. Manage mount status, navigate celestial catalogs, and perform alignment and configuration tasks without a laptop.

**Highlights:** Live mount status monitoring, Directional control with adjustable slew rates, One-tap home and park functionality, Access to celestial object catalogs for Go-To slewing, Guided alignment workflow, Flexible Wi-Fi network setup, Configuration and tuning options

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is OnStep Controller free?

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

### Is MLAstro Hub free?

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

### Do OnStep Controller or MLAstro Hub have ads?

Neither OnStep Controller nor MLAstro Hub 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.*