# AstroPup View vs AstroTool

The clearest difference is in-app purchases: AstroPup View at none against AstroTool's 1. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. AstroTool sells 1 one-off in-app purchase. AstroPup View asks for nothing beyond the download.

AstroPup View ships an update every 2 weeks, AstroTool every 9 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | AstroPup View | AstroTool |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/astropup-view/id6752028730/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 9 days** |
| Monetization | Free | — |
| Size | 21 MB | 3 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | **iPhone, iPad, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Aaron Freimark](https://appshunter.io/developer/1533614349) | [luciano cavazos](https://appshunter.io/developer/1273817106) |

## What reviewers say

### AstroPup View

[App page](https://appshunter.io/ios/app/astropup-view/id6752028730)

Easily manage and view astronomical image files like FITS and XISF. Offers GPU-accelerated rendering, automatic stretching, and QuickLook integration for a seamless user experience. Create icons and display smart metadata directly from your files.

**Highlights:** FITS and XISF format support, GPU-accelerated rendering, Automatic advanced stretching, QuickLook integration, Icon creation, Smart metadata display

**In-app purchases:** none


### AstroTool

[App page](https://appshunter.io/ios/app/astrotool-night-sky-planner/id6771275558)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AstroTool Premium Unlock | $4.99 | one-time |


## Frequently asked questions

### Is AstroPup View free?

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

### Is AstroTool free?

AstroTool is free to download, with in-app purchases available.

### Do AstroPup View or AstroTool have ads?

Neither AstroPup View nor AstroTool shows ads.

### Which is updated more often, AstroPup View or AstroTool?

AstroPup View ships an update every 2 weeks, and AstroTool every 9 days. Most recently, AstroPup View was updated on October 30, 2026 and AstroTool on October 31, 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.*