# Astro Max Calculator vs Seestar

The clearest difference is update cadence: Astro Max Calculator at weekly against Seestar's monthly. 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.

Astro Max Calculator ships an update weekly, Seestar monthly. The most recent releases landed on November 3, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | Astro Max Calculator | Seestar |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.2 (356 ratings)](https://appshunter.io/ios/app/seestar/id6447429891/reviews)** |
| Number of ratings | — | **356** |
| Positive reviews | — | 62.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Monthly |
| Monetization | — | Paid |
| Size | 0 MB | 1.3 GB |
| Requires iOS | 14.1 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Gregory Wu](https://appshunter.io/developer/1598192810) | [SuZhou ZWO Co., Ltd](https://appshunter.io/developer/1367782033) |

## What reviewers say

### Astro Max Calculator

[App page](https://appshunter.io/ios/app/astro-max-calculator/id1598192808)

**Features:** macOS Compatibility

**In-app purchases:** none


### Seestar

[App page](https://appshunter.io/ios/app/seestar/id6447429891)

Explore the universe with a smart telescope that simplifies stargazing. Automatically find, focus, and capture celestial objects without professional guidance. Observe stars, the sun, and even landscapes with intuitive app control.

**Highlights:** Wireless control of telescope, Automatic celestial object finding and tracking, Solar observation with filter, Scenery mode for terrestrial viewing, Built-in sky atlas and encyclopedia, Stargazing index and recommendations, Share observations with community

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

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- 🚀 Continuous updates
- 💡 Great value for money
- 👍 Intuitive interface
- 👍 Excellent image quality

**What reviewers complain about**

- 🐛 Firmware updates causing issues
- 🐛 Connectivity problems
- 🐛 Tracking and stability issues
- 🔋 Battery life concerns
- 🐛 Crashes and bugs after updates

**Reported bugs**

- Firmware update cycle preventing settings changes
- Tracking errors and star trailing issues
- App crashing on startup
- Inability to connect to telescope
- Forced firmware updates during use

**Requested features**

- Add equatorial mode support
- Provide fine control of exposure time
- Implement mosaic mode for wider FOV
- Add support for iPad landscape mode
- Integrate with other astronomy apps


## Frequently asked questions

### Is Astro Max Calculator free?

Astro Max Calculator is free to download, with no in-app purchases.

### Is Seestar free?

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

### Do Astro Max Calculator or Seestar have ads?

Neither Astro Max Calculator nor Seestar shows ads.

### Which is updated more often, Astro Max Calculator or Seestar?

Astro Max Calculator ships an update weekly, and Seestar monthly. Most recently, Astro Max Calculator was updated on November 3, 2026 and Seestar on November 7, 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.*