# PF vs SynScan

The clearest difference is update cadence: SynScan 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 every 2 months. The most recent releases landed on October 29, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | PF | SynScan |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.3 (8 ratings)](https://appshunter.io/ios/app/synscan/id1243086631/reviews)** |
| Number of ratings | — | **8** |
| Positive reviews | — | 22.2% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | **Every 2 months** |
| Monetization | — | Free |
| 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

[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 PF free?

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

### Is SynScan free?

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

### Do PF or SynScan have ads?

Neither PF nor SynScan shows ads.

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

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