# Astro Stacker vs Eagle Image Stacker

The clearest difference is monetization model: Astro Stacker at free against Eagle Image Stacker's free with in-app purchases. Astro Stacker also leads on ratings volume (4 vs 1). On price, rating, review sentiment and ads there is nothing between them.

Both are free to download. Astro Stacker sells 3 in-app purchases, starting at $12.99 per month and Eagle Image Stacker sells 3 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 1.0 for Astro Stacker against 1.0 for Eagle Image Stacker. Both are backed by a comparable volume of ratings — 4 and 1 respectively. Written reviews split almost evenly too, at 0% and 0% positive.

## The numbers

| Metric | Astro Stacker | Eagle Image Stacker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (4 ratings)](https://appshunter.io/ios/app/astro-stacker-star-images/id6753679598/reviews) | [1.0 (1 ratings)](https://appshunter.io/ios/app/eagle-image-stacker/id6757908614/reviews) |
| Number of ratings | **4** | 1 |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | — |
| Monetization | **Free** | Free with in-app purchases |
| Size | 16 MB | 31 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Ahmed Al-Mahmud](https://appshunter.io/developer/1844352476) | [AL MUATASIM AL MAADI](https://appshunter.io/developer/1869537738) |

## What reviewers say

### Astro Stacker

[App page](https://appshunter.io/ios/app/astro-stacker-star-images/id6753679598)

Transform your smartphone into a powerful astrophotography tool. This app uses advanced algorithms to combine multiple night sky photos, reducing noise and revealing hidden celestial details for professional-quality results.

**Highlights:** Advanced stacking algorithms (Average, Median, Maximum, Minimum), Intelligent and manual image alignment, Real-time processing and progress tracking, On-device processing, no cloud upload, Export high-resolution stacked images, Detailed processing insights and logs

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AstroStacker app | $12.99 | per month |
| AstroStacker app | $99.99 | per year |
| AstroStacker app | $219.00 | one-time |


### Eagle Image Stacker

[App page](https://appshunter.io/ios/app/eagle-image-stacker/id6757908614)

Astro stacking and RAW image processing toolkit for iPhone. Align, stack, and export high-quality results for star fields, galaxies, planets, and more. Features on-device processing for privacy and flexibility.

**Highlights:** RAW, DNG, ProRAW, JPEG, HEIF, TIFF support, Astro Mode for deep-sky objects, Planets Mode with ROI tracking, RAW converter and inspector, Calibration tools (dark, flat frames), On-device processing, Export high-quality results

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Eagle Pro Monthly | $9.99 | per month |
| Eagle Pro Annual | $40.99 | per year |
| Eagle Pro Lifetime | $49.99 | one-time |


## Frequently asked questions

### Is Astro Stacker free?

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

### Is Eagle Image Stacker free?

Eagle Image Stacker is free to download, with in-app purchases available.

### Which has better reviews, Astro Stacker or Eagle Image Stacker?

Astro Stacker and Eagle Image Stacker are both rated 1.0 out of 5 on the App Store, from 4 and 1 ratings respectively.

### Do Astro Stacker or Eagle Image Stacker have ads?

Neither Astro Stacker nor Eagle Image Stacker 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.*