# PF vs SynScan Pro

The clearest difference is update cadence: SynScan Pro at every 2 months against PF's every 11 months. PF's advantage is iOS requirement (12.0 vs 14.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

PF ships an update every 11 months, SynScan Pro every 2 months. The most recent releases landed on October 29, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | PF | SynScan Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[2.7 (56 ratings)](https://appshunter.io/ios/app/synscan-pro/id1302270121/reviews)** |
| Number of ratings | — | **56** |
| Positive reviews | — | 21.5% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | **Every 2 months** |
| Monetization | — | Paid |
| Size | 8 MB | 46 MB |
| Requires iOS | **12.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Vixen Co.,Ltd.](https://appshunter.io/developer/536188843) | [Astropower Technology Co. Ltd.](https://appshunter.io/developer/1787940478) |

## What reviewers say

### PF

[App page](https://appshunter.io/ios/app/pf-l-assist/id940306488)

**In-app purchases:** none


### 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 PF free?

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

### Is SynScan Pro free?

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

### Do PF or SynScan Pro have ads?

Neither PF nor SynScan Pro shows ads.

### Which is updated more often, PF or SynScan Pro?

PF ships an update every 11 months, and SynScan Pro every 2 months. Most recently, PF was updated on October 29, 2026 and SynScan Pro on October 24, 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.*