# GPS Astro vs SQM Mobile

The clearest difference is price: SQM Mobile at Free against GPS Astro's $0.99. GPS Astro's advantage is device support (3 vs 1) and iOS requirement (9.0 vs 17.6). On update cadence, ads and in-app purchases there is nothing between them.

SQM Mobile is free to download; GPS Astro costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

GPS Astro ships an update monthly, SQM Mobile every 4 weeks. The most recent releases landed on October 22, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | GPS Astro | SQM Mobile |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[4.8 (122 ratings)](https://appshunter.io/ios/app/gps-astro/id369884042/reviews)** | — |
| Number of ratings | **122** | — |
| Positive reviews | 83.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 4 weeks** |
| Monetization | Free | — |
| Size | 54 MB | 42 MB |
| Requires iOS | **9.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Esirion AG](https://appshunter.io/developer/369884045) | [GerSpatial](https://appshunter.io/developer/504662245) |

## What reviewers say

### GPS Astro

[App page](https://appshunter.io/ios/app/gps-astro/id369884042)

This utility app calculates astronomical events like sunrise, sunset, moonrise, and moonset. It supports current or selected locations and displays moon phases and twilight times. Users can save multiple locations and sync events to their calendar.

**Highlights:** Sunrise/sunset times, Moonrise/moonset times, Moon phases, Twilight times, Save multiple locations, Calendar sync

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

**In-app purchases:** none

**What reviewers like**

- 👍 Simple to use
- 📖 Clear to read
- 💰 Affordable price
- 🎣 Useful for planning outings
- ✅ Reliable and accurate

**What reviewers complain about**

- 🐛 Moon times inaccurate
- 🐛 Language not changeable
- 🔒 Location access required when not running
- 📉 Graphical moon phase approximation

**Reported bugs**

- 🐛 Moon rise/set times off by an hour
- 🐛 Cannot change language from German to English
- 🐛 Cannot change location in iOS 10
- 🐛 Requires location access even when app is not running
- 🐛 Moon phases rendered approximately, not true representation

**Requested features**

- 💡 More accurate moon rendering
- 💡 Monthly/yearly view
- 💡 Improved interface for dates and locations
- 💡 True moon phase representation


### SQM Mobile

[App page](https://appshunter.io/ios/app/sqm-mobile/id6753923113)

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

**In-app purchases:** none


## Frequently asked questions

### Is GPS Astro free?

GPS Astro costs $0.99, with no in-app purchases.

### Is SQM Mobile free?

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

### Do GPS Astro or SQM Mobile have ads?

Neither GPS Astro nor SQM Mobile shows ads.

### Which is updated more often, GPS Astro or SQM Mobile?

GPS Astro ships an update monthly, and SQM Mobile every 4 weeks. Most recently, GPS Astro was updated on October 22, 2026 and SQM Mobile on October 12, 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.*