SynScan Pro
Skywatcher Apps Team
2.4 ★
991 ratings
100,000+
downloads
Free
With this telescope control app, you can operate mounts via Wi-Fi, USB, or Bluetooth LE, perform GOTO and tracking functions, and browse celestial catalogs. Includes mount control, auto-alignment, catalog management, third-party app support, and camera shutter control features.
AppRecs review analysis
AppRecs rating 2.3. Trustworthiness 87 out of 100. Review manipulation risk 15 out of 100. Based on a review sample analyzed.
★★☆☆☆
2.3
AppRecs Rating
Ratings breakdown
5 star
18%
4 star
16%
3 star
8%
2 star
3%
1 star
55%
What to know
✓
Low review manipulation risk
15% review manipulation risk
⚠
Mixed user feedback
Average 2.4★ rating suggests room for improvement
⚠
High negative review ratio
58% of sampled ratings are 1–2 stars
About SynScan Pro
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
SynScan Pro Screenshots
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Reviews for SynScan Pro
Rylan VW
3/1/2026
I'm leaving a 5 star review to hopefully offset some of the lousy reviews here. Is it a 5 star app? No. A weak 4 star app, but I have no connectivity issues. It does exactly what it's supposed to do. It's just terrible at context switching. If I want to open something else for astronomy on my phone, there's about a 50/50 chance the app will stay responsive. Half the time, it has crashed when I get back to it. Edit: updating the app lost planetary alignment to knock off 1 star. Bring it back!
Misty
2/15/2026
Works great
