# Stars Blinker vs AstroPup View

The clearest difference is rating: AstroPup View at 5.0 against Stars Blinker's 4.0. AstroPup View also leads on in-app purchases (none vs 1) and device support (3 vs 1). Stars Blinker's advantage is iOS requirement (12.0 vs 18.0). On price, ratings volume, ads and monetization model there is nothing between them.

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

AstroPup View holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

## The numbers

| Metric | Stars Blinker | AstroPup View |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (1 ratings)](https://appshunter.io/ios/app/stars-blinker/id1569633657/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/astropup-view/id6752028730/reviews)** |
| Number of ratings | 1 | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | — | Every 2 weeks |
| Monetization | Free | Free |
| Size | 25 MB | 21 MB |
| Requires iOS | **12.0** | 18.0 |
| Devices | iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Roberto De Lorenzo](https://appshunter.io/developer/692760870) | [Aaron Freimark](https://appshunter.io/developer/1533614349) |

## What reviewers say

### Stars Blinker

[App page](https://appshunter.io/ios/app/stars-blinker/id1569633657)

This app helps deep-sky photographers compare two images of the same celestial area taken at different times. It highlights changes in object position or brightness by blinking them, making it easier to spot phenomena like variable stars or asteroids.

**Highlights:** Compare two deep-sky images, Highlight changes in object position/brightness, Align images using three stars, Use images from different instruments, Adjust blinking interval, Save animations as movies

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock all features | $1.99 | one-time |


### 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


## Frequently asked questions

### Is Stars Blinker free?

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

### Is AstroPup View free?

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

### Which has better reviews, Stars Blinker or AstroPup View?

AstroPup View is rated higher. Stars Blinker averages 4.0 out of 5 from 1 ratings, while AstroPup View averages 5.0 from 1 ratings.

### Do Stars Blinker or AstroPup View have ads?

Neither Stars Blinker nor AstroPup View shows ads.

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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.*