2.8
989 reviews
100K+
Downloads
Content rating
PEGI 3
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image

About this app

Use the SynScan app to control Sky-Watcher telescope mounts via Wi-Fi, USB or Bluetooth LE. Mounts without built-in Wi-Fi can be supported via a SynScan Wi-Fi adapter.

This is the Pro version of the SynScan app and contains features suited for expert users using equatorial mounts.

Features
- Control telescope mount to slew, align, GOTO and track.
- Point And Track: track celestial objects (including the Sun and planets) without aligning.
- Support gamepad navigation.
- Browse a catalog of stars, comets, and deep sky objects. Or, save your own objects.
- Provide access to mount for use by third-party apps, including ASCOM clients, SkySafari, Luminos, Stellarium Mobile Plus, Stellarium Desktop or customer-developed apps.
- Support access to the mount and the SynScan app from any platform that supports TCP/UDP connections.
- Provide emulator mount for testing and practicing.
- Track fast-moving earth satellites by working with the PreviSat app on Windows PC or the Lumios app on iOS devices.
- SynMatrix AutoAlign: use the smartphone camera to align the telescope automatically.
- Perform polar alignment with or without a polar scope.
- Control shutter release (SNAP) port to trigger an attached camera. (Requires mount with SNAP port and adapter cable that matches camera.)
- Use ASCOM to perform autoguiding on mounts that do not have autoguider (ST-4) port.
- Other mount controls: auto home, PPEC, park
Updated on
Nov 7, 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
No data collected
Learn more about how developers declare collection

Ratings and reviews

2.8
906 reviews
Patrick Cunningham
November 23, 2025
Half works. It's unclear when alignment is set and ready, and usually the movement arrows don't work. The manual is pretty bad and really doesn't need to be; needs more screenshots, how-tos, and hand-holding for using the app's current version.
Did you find this helpful?
Messier 1623
January 9, 2026
Doesn't even open. I have no clue what I'm doing wrong. I tried installing earlier versions of the app but that didn't work at all. Please fix your app and compatibility with different devices.
Did you find this helpful?
speedy gonzalez
December 16, 2021
this is amazing and free - I just required a $100 wifi dongle. it is so much easier to use than the clunky handset and requires no cable. my friends who use it describe aligning as like a video game, which means they're more likely to join me on my scope. I'm looking forward to trying the image capture function which appears to be an intervalometer for the camera, controlled through the mount , which I've only just discovered. can't recommend this more highly !
2 people found this review helpful
Did you find this helpful?

What’s new

• EQ tracking: fix crash that happens sometimes when this task is interrupted