# ASIAIR vs Star Stacker

The clearest difference is price: ASIAIR at Free against Star Stacker's $3.99. ASIAIR also leads on iOS requirement (13.0 vs 17.0). Star Stacker's advantage is rating (4.3 vs 3.9) and chart position (#136 vs unranked). On review sentiment, ratings volume, update cadence and ads there is nothing between them.

ASIAIR is free to download; Star Stacker costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Star Stacker holds the better App Store score, 4.3 against 3.9. Both are backed by a comparable volume of ratings — 245 and 99 respectively. Written reviews point the same way: 52% of ASIAIR's written reviews are positive against 57% of Star Stacker's.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on November 6, 2026 and November 11, 2026 respectively.

## The numbers

| Metric | ASIAIR | Star Stacker |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| Rating | [3.9 (245 ratings)](https://appshunter.io/ios/app/asiair/id1367782034/reviews) | **[4.3 (99 ratings)](https://appshunter.io/ios/app/star-stacker/id1549693927/reviews)** |
| Number of ratings | **245** | 99 |
| Positive reviews | 52.3% of reviews | **56.9% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free | Free |
| Best chart rank | — | **#136** |
| Size | 1.1 GB | 4 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 17+ | 4+ |
| Developer | [SuZhou ZWO Co., Ltd](https://appshunter.io/developer/1367782033) | [michael webb](https://appshunter.io/developer/622398499) |

## What reviewers say

### ASIAIR

[App page](https://appshunter.io/ios/app/asiair/id1367782034)

This app acts as an intelligent wireless controller for astrophotography, enabling control of various cameras and equatorial mounts. It offers comprehensive tools for deep-sky and planetary imaging, including focusing, alignment, and stacking, all accessible from your mobile device.

**Highlights:** Wireless camera and mount control, DSLR/MILC and equatorial mount support, Built-in SkyAtlas for imaging tasks, Auto-focus and polar alignment, Live stacking and post-stacking, Multi-target and mosaic planning

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

**In-app purchases:** none

**What reviewers like**

- 🚀 Powerful and feature-rich
- 👍 Easy to use and intuitive
- 🔒 Reliable and stable
- 🌟 Excellent automation and control
- 💻 Seamless integration with ZWO ecosystem

**What reviewers complain about**

- 🐛 Buggy software updates
- 🔍 Limited camera/mount compatibility
- 🔧 Difficult to troubleshoot issues
- 🔋 Connectivity and Wi-Fi problems
- 🗺️ Inaccurate object locating and plate solving

**Reported bugs**

- Crashes and freezes with recent updates
- Guiding and tracking issues after updates
- Connectivity problems with certain mounts
- Polar alignment and plate solving failures
- Incompatibility with newer iOS versions

**Requested features**

- Improved object catalog and sky atlas
- Support for more camera brands and models
- Mosaic imaging capabilities
- Customizable file naming and organization
- Notifications and alerts for issues during sessions


### Star Stacker

[App page](https://appshunter.io/ios/app/star-stacker/id1549693927)

**Currently charting:** #136 Top Paid · Photo & Video (US App Store)

Create stunning star trail images and time-lapse videos from sequences of night sky photos. Offers various effects like full trails, faded trails, shooting stars, and warp mode. Supports importing photos from your device's gallery.

**Highlights:** Create star trail images, Generate time-lapse videos, Full trails effect, Faded trails effect, Shooting star effect, Warp mode effect, Import photos from gallery

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- ✨ Great results
- 🚀 Fast processing
- 💡 Versatile for different uses
- 👨‍🏫 Useful for teaching

**What reviewers complain about**

- 🐛 Frequent crashes
- 💸 Not worth the money
- 🤔 Unintuitive interface
- 🤷‍♂️ Lack of documentation
- 🐌 Slow stacking speed

**Reported bugs**

- App crashes when starting stack
- App crashes when attempting to stack
- App crashes during stacking process
- App crashes when rendering video
- Cannot load photos

**Requested features**

- Option to export live photos
- Help info for stacking options
- Manual stacking option
- Advanced editing software
- Automatic alignment function


## Frequently asked questions

### Is ASIAIR free?

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

### Is Star Stacker free?

Star Stacker costs $3.99, with no in-app purchases.

### Which has better reviews, ASIAIR or Star Stacker?

Star Stacker is rated higher. ASIAIR averages 3.9 out of 5 from 245 ratings, while Star Stacker averages 4.3 from 99 ratings.

### Do ASIAIR or Star Stacker have ads?

Neither ASIAIR nor Star Stacker shows ads.

### Which is updated more often, ASIAIR or Star Stacker?

ASIAIR ships an update every 2 months, and Star Stacker every 2 months. Most recently, ASIAIR was updated on November 6, 2026 and Star Stacker on November 11, 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.*