# Polar Scope Align Pro Watch vs SynScan

The clearest difference is review sentiment: Polar Scope Align Pro Watch at 100% against SynScan's 22%. Polar Scope Align Pro Watch also leads on rating (4.9 vs 3.3) and ratings volume (51 vs 8). SynScan's advantage is price (Free vs $4.99) and in-app purchases (none vs 3). On update cadence, ads, device support and iOS requirement there is nothing between them.

SynScan is free to download; Polar Scope Align Pro Watch costs $4.99 up front. Polar Scope Align Pro Watch sells 3 one-off in-app purchases. SynScan asks for nothing beyond the download.

Polar Scope Align Pro Watch holds the better App Store score, 4.9 against 3.3. That said, the two scores are not equally well evidenced: Polar Scope Align Pro Watch has 51 ratings behind it against 8, so its average is the more settled of the two. Written reviews point the same way: 100% of Polar Scope Align Pro Watch's written reviews are positive against 22% of SynScan's.

Polar Scope Align Pro Watch ships an update every 6 weeks, SynScan every 2 months. The most recent releases landed on October 21, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Polar Scope Align Pro Watch | SynScan |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | **[4.9 (51 ratings)](https://appshunter.io/ios/app/polar-scope-align-pro-watch/id986082042/reviews)** | [3.3 (8 ratings)](https://appshunter.io/ios/app/synscan/id1243086631/reviews) |
| Number of ratings | **51** | 8 |
| Positive reviews | **100.0% of reviews** | 22.2% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 2 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 34 MB | 46 MB |
| Requires iOS | **13.0** | 14.0 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Dimitrios Kechagias](https://appshunter.io/developer/970157964) | [Astropower Technology Co. Ltd.](https://appshunter.io/developer/1787940478) |

## What reviewers say

### Polar Scope Align Pro Watch

[App page](https://appshunter.io/ios/app/polar-scope-align-pro-watch/id986082042)

This app provides precise polar alignment for telescopes, with or without a polar scope. It includes a comprehensive suite of astronomical tools, such as a DSO database, calculators, and mount control. An accompanying watch app offers real-time alignment data and weather information.

**Highlights:** Precise polar alignment calculation, Polar scope reticle selection, Daytime/no polarscope alignment, Deep Space Object database, Astronomical calculators, iOptron mount control, Apple Watch companion app

**Features:** Apple Watch app, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tip 1x | $0.99 | one-time |
| Tip 4x | $3.99 | one-time |
| Tip 10x | $9.99 | one-time |


### SynScan

[App page](https://appshunter.io/ios/app/synscan/id1243086631)

Control motorized telescope mounts for celestial object tracking and exploration. Features include GOTO functionality, object catalogs, and gamepad navigation. Ideal for novice users with alt-azimuth mounts.

**Highlights:** Control telescope mount slew, align, GOTO, and track, Point and Track celestial objects, Support gamepad navigation, Browse and save celestial object catalogs, Third-party app integration (ASCOM, SkySafari, Stellarium), Emulator mount for testing

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Polar Scope Align Pro Watch free?

Polar Scope Align Pro Watch costs $4.99, and also offers in-app purchases.

### Is SynScan free?

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

### Which has better reviews, Polar Scope Align Pro Watch or SynScan?

Polar Scope Align Pro Watch is rated higher. Polar Scope Align Pro Watch averages 4.9 out of 5 from 51 ratings, while SynScan averages 3.3 from 8 ratings.

### Do Polar Scope Align Pro Watch or SynScan have ads?

Neither Polar Scope Align Pro Watch nor SynScan shows ads.

### Which is updated more often, Polar Scope Align Pro Watch or SynScan?

Polar Scope Align Pro Watch ships an update every 6 weeks, and SynScan every 2 months. Most recently, Polar Scope Align Pro Watch was updated on October 21, 2026 and SynScan on October 20, 2026.

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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.*