# Polar Scope Align Pro vs SynScan Pro

The clearest difference is review sentiment: Polar Scope Align Pro at 97% against SynScan Pro's 22%. Polar Scope Align Pro also leads on rating (4.9 vs 2.6) and chart position (#63 vs unranked). SynScan Pro's advantage is price (Free vs $3.99) and in-app purchases (none vs 3). On update cadence, ads, device support and iOS requirement there is nothing between them.

SynScan Pro is free to download; Polar Scope Align Pro costs $3.99 up front. Polar Scope Align Pro sells 3 one-off in-app purchases. SynScan Pro asks for nothing beyond the download.

Polar Scope Align Pro holds the better App Store score, 4.9 against 2.6. That said, the two scores are not equally well evidenced: Polar Scope Align Pro has 305 ratings behind it against 51, so its average is the more settled of the two. Written reviews point the same way: 97% of Polar Scope Align Pro's written reviews are positive against 22% of SynScan Pro's.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on September 22, 2026 and July 4, 2026 respectively.

## The numbers

| Metric | Polar Scope Align Pro | SynScan Pro |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | **[4.9 (305 ratings)](https://appshunter.io/ios/app/polar-scope-align-pro/id970161373/reviews)** | [2.6 (51 ratings)](https://appshunter.io/ios/app/synscan-pro/id1302270121/reviews) |
| Number of ratings | **305** | 51 |
| Positive reviews | **97.0% of reviews** | 21.5% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | **Free with in-app purchases** | Paid |
| Best chart rank | **#63** | — |
| Size | 32 MB | 46 MB |
| Requires iOS | **13.0** | 14.0 |
| Devices | iPhone, iPad, iPod | 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

[App page](https://appshunter.io/ios/app/polar-scope-align-pro/id970161373)

**Currently charting:** #63 Top Paid · Utilities (US App Store)

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.

**Highlights:** Accurate polar alignment calculation, Support for numerous polar scope reticles, Daytime/no polarscope alignment tool, Deep Space Object database, Astrophotography calculators, World astro-weather report

**Features:** 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 |

**What reviewers like**

- 🚀 Best Polar Alignment App
- 👍 Detailed Instructions and Explanations
- 👍 Fantastic App with Many Useful Features
- 👍 Intuitive and No Distractions
- 👍 Comprehensive Astronomy App

**What reviewers complain about**

- 🐛 Compass Inaccurate
- 🐛 Location Data Inaccurate

**Reported bugs**

- Weather Updates Not Working
- Compass Deflected by Mount

**Requested features**

- Add Observation Recording Feature
- Add Push To Option for DSO Objects


### SynScan Pro

[App page](https://appshunter.io/ios/app/synscan-pro/id1302270121)

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.

**Highlights:** 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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Polar Scope Align Pro free?

Polar Scope Align Pro costs $3.99, and also offers in-app purchases.

### Is SynScan Pro free?

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

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

Polar Scope Align Pro is rated higher. Polar Scope Align Pro averages 4.9 out of 5 from 305 ratings, while SynScan Pro averages 2.6 from 51 ratings.

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

Neither Polar Scope Align Pro nor SynScan Pro shows ads.

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

Polar Scope Align Pro ships an update every 2 months, and SynScan Pro every 2 months. Most recently, Polar Scope Align Pro was updated on September 22, 2026 and SynScan Pro on July 4, 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.*