Best OnStep Controller alternatives: apps like OnStep Controller - GDA

10+ similar apps compared and reviewed

4.1 avg rating
9 free apps
Updated November 2026

Looking for something like OnStep Controller? We've analyzed 10+ similar apps to help you find the best alternative. Each app is compared by ratings, features, and real user reviews, so you can make the right choice.

Top Alternatives to OnStep Controller

TRITON GOTO - OnStep Control#1

TRITON GOTO - OnStep Control by ιΉ€ε³° ζž—

Control your OnStep Telescope
Editor's Choice
πŸ”§ Utilities
5.0(4 ratings)
Free
TRITON GOTO - OnStep Control screenshot 1
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This app simplifies controlling your OnStep telescope. It integrates telescope operation, an interactive sky chart, alignment tools, and 3D visualization for observing and astrophotography. Ideal for both beginners and advanced users of DIY equatorial mounts.

MLAstro Hub#2

MLAstro Hub by To Ngoc Khanh

OnStepX Smart Controller
Strong Contender
πŸ”§ Utilities
5.0(1 ratings)
Free
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Control your OnStep telescope mount wirelessly from your phone. Manage mount status, navigate celestial catalogs, and perform alignment and configuration tasks without a laptop.

Touch-N-Stars#3

Touch-N-Stars by Johannes Maier

NINA Remote Controller
Worth Considering
πŸ”§ Utilities
4.7(7 ratings)
Free
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Control your astrophotography sessions remotely from your mobile device or Mac. Manage imaging, focus, guiding, and polar alignment. This open-source tool enhances your workflow without ads or in-app purchases.

More apps like OnStep Controller

4
Cygnus Astro
Cygnus Astro
Cygnus Astro
Astrophotography App for NINA
Free

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.

Remote equipment controlN.I.N.A. software integrationMobile touch interface
πŸ”§ Utilities
(4)
free
5
AstroVitals
AstroVitals
AstroVitals
Live N.I.N.A. rig monitor
Free

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.

Live guiding graphs and stability scoresAutofocus V-curve visualizationFull sequence tree with progress
πŸ”§ Utilities
(3)
free
6
PF-L Assist
PF-L Assist
PF-L Assist
by Vixen Co., Ltd.
Free
πŸ”§ Utilities
(0)
7
StellarMate
StellarMate
StellarMate
Astrophotography Controller
Free

Control your astrophotography equipment remotely. Capture images, stream video, and perform precise alignment. Automatically back up your photos to the cloud with rich metadata for easy searching.

Remote equipment controlImage capture and video streamingPolar alignment assistant
πŸ”§ Utilities
(26)
free
8
iOptron Commander (iOS)
iOptron Commander (iOS)
iOptron Commander (iOS)
iOptron mount control utility
Free

Control your iOptron telescope mount remotely using your iOS device. This utility allows for basic functions like slewing to celestial objects, syncing time and location, and managing compatible mount series.

Remote telescope mount controlSlew to stars and deepsky objectsSync time and site from iOS
πŸ”§ Utilities
(15)
free
9
Polar Scope Align
Polar Scope Align
Polar Scope Align
Telescope Polar alignment
Free

This app calculates the precise position of celestial poles in your telescope's polar scope reticle for accurate alignment. It supports a wide range of reticles and corrects for atmospheric refraction, offering precision even at lower latitudes. Features include night mode, moon phase, and astronomical databases.

Polaris/Sigma Octantis position calculationAtmospheric refraction correctionReticle centering error correction
πŸ”§ Utilities
(173)
free with in-app purchases
10
Polar Scope Align Pro
Polar Scope Align Pro
Polar Scope Align Pro
Scope alignment & astro tools
$4.99

This app assists astronomers with precise polar alignment for telescopes, offering tools for various reticles and low-latitude accuracy. It also includes a comprehensive suite of astro tools, from object databases to calculators and weather reports.

Accurate polar alignment calculationSupport for numerous polar scope reticlesDaytime/no polarscope alignment tool
πŸ”§ Utilities
(310)
free with in-app purchases