# Cam Widget vs AstroFileViewer

The clearest difference is update cadence: AstroFileViewer at every 11 days against Cam Widget's every 41 months. Cam Widget's advantage is iOS requirement (12.0 vs 16.4). 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.

Cam Widget ships an update every 41 months, AstroFileViewer every 11 days. The most recent releases landed on September 26, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Cam Widget | AstroFileViewer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/astrofileviewer/id6760240080/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 41 months | **Every 11 days** |
| Monetization | — | Free |
| Size | 18 MB | 1 MB |
| Requires iOS | **12.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Zetta Systems Limited](https://appshunter.io/developer/1044602043) | [Joerg Klaas](https://appshunter.io/developer/1879846001) |

## What reviewers say

### Cam Widget

[App page](https://appshunter.io/ios/app/cam-widget/id1625076943)

**Features:** macOS Compatibility

**In-app purchases:** none


### AstroFileViewer

[App page](https://appshunter.io/ios/app/astrofileviewer/id6760240080)

View astronomical image files like FITS and XISF on your iPhone or iPad. Get an early impression of your data with PixInsight-compatible auto-stretching, gradient control, and noise reduction. Fun and useful for astrophotographers.

**Highlights:** Open FITS and XISF files from various sources, PixInsight-compatible STF auto-stretch, Mono and RGB image support with OSC debayer, Dark point and contrast sliders, Color saturation adjustment, GPU bilateral denoise, Gradient correction

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Cam Widget free?

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

### Is AstroFileViewer free?

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

### Do Cam Widget or AstroFileViewer have ads?

Neither Cam Widget nor AstroFileViewer shows ads.

### Which is updated more often, Cam Widget or AstroFileViewer?

Cam Widget ships an update every 41 months, and AstroFileViewer every 11 days. Most recently, Cam Widget was updated on September 26, 2026 and AstroFileViewer on October 6, 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.*