SynScan Pro vs SkyOrSkip
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SynScan Pro
Control motorized telescope mounts for celestial observation and astrophotography. Features include precise slewing, alignment, GOTO, and tracking of stars, planets, and deep-sky objects. Supports advanced functions like polar alignment and camera triggering.
- Control telescope mount (slew, align, GOTO, track)
- Point and Track celestial objects
- Gamepad navigation support
- Catalog of celestial objects
- Third-party app integration (ASCOM, SkySafari)
- Polar alignment (with or without polar scope)
- Camera shutter release control
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Use the SynScan app to control Sky-Watcher telescope mounts via Wi-Fi 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. Also set up mount alignment for Luminos, Skysafari. - 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. - 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.
SkyOrSkip
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SKY or SKIP? SkyOrSkip helps you make a fast decision about tonight’s stargazing. Choose your observing location and equipment—naked eye, binoculars, or telescope—and get a clear GO, SHORT, SKIP, or NO DATA signal. When conditions support observing, the app shows the best continuous observing window and up to three suggested targets suited to your setup. Built for a quick check before you head outside: • Local hourly weather and astronomical darkness • GO / SHORT / SKIP / NO DATA decision signal • Best continuous observing window in the main app • Up to three visible target suggestions for your equipment • Current location or manual place search • Home Screen widget for an at-a-glance signal • Standard and red observation modes • English and Simplified Chinese • Three-night outlook with nightly weather details and a best-night recommendation SkyOrSkip is for observation planning only. Weather and astronomical conditions can change; always use your own judgment and follow local conditions.
Screenshots
Verdict
The clearest difference is update cadence: SkyOrSkip at every 9 days against SynScan Pro's every 2 months. SynScan Pro's advantage is device support (3 vs 1) and iOS requirement (14.0 vs 17.0). On price, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
SynScan Pro ships an update every 2 months, SkyOrSkip every 9 days. The most recent releases landed on October 23, 2026 and October 16, 2026 respectively.
| Parameter | SynScan Pro | SkyOrSkip |
|---|---|---|
| Price | Free | Free |
| Rating | 2.7 (56 ratings) — better | — |
| Positive reviews | 21.5% of reviews | — |
| Number of ratings | 56 — better | — |
| Update frequency | Every 2 months | Every 9 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 14.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 46 MB | 21 MB |
| Age rating | 4+ | 4+ |
| Developer | Astropower Technology Co. Ltd. | EDUSNAP TECHNOLOGY LIMITED |
In-app purchases
SynScan Pro
No in-app purchases
SkyOrSkip
No in-app purchases
Questions
Is SynScan Pro free?
Is SkyOrSkip free?
Do SynScan Pro or SkyOrSkip have ads?
Which is updated more often, SynScan Pro or SkyOrSkip?
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