# GPS Astro vs Noise Log dB Meter

The clearest difference is monetization model: GPS Astro at free against Noise Log dB Meter's paid. GPS Astro also leads on update cadence (monthly vs every 3 months) and iOS requirement (9.0 vs 13.0). On price, ads, in-app purchases and device support there is nothing between them.

GPS Astro costs $0.99 and Noise Log dB Meter $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

GPS Astro ships an update monthly, Noise Log dB Meter every 3 months. The most recent releases landed on November 1, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | GPS Astro | Noise Log dB Meter |
| --- | --- | --- |
| Price | $0.99 | $0.99 |
| 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 3 months |
| Monetization | **Free** | Paid |
| Size | 54 MB | 25 MB |
| Requires iOS | **9.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Esirion AG](https://appshunter.io/developer/369884045) | [Daniel Ovadia](https://appshunter.io/developer/1835498181) |

## 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


### Noise Log dB Meter

[App page](https://appshunter.io/ios/app/noise-log-db-meter/id6751512116)

This app helps you document noise disturbances with detailed logs. Record sound levels, timestamps, locations, and attach media evidence for clear, chronological documentation. Ideal for neighborhood noise, construction, or event disturbances.

**Highlights:** Real-time decibel measurement, Automatic timestamps, GPS location recording, Photo, audio, and video documentation, Structured chronological logs, Export reports as PDF or ZIP

**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 Noise Log dB Meter free?

Noise Log dB Meter costs $0.99, with no in-app purchases.

### Do GPS Astro or Noise Log dB Meter have ads?

Neither GPS Astro nor Noise Log dB Meter shows ads.

### Which is updated more often, GPS Astro or Noise Log dB Meter?

GPS Astro ships an update monthly, and Noise Log dB Meter every 3 months. Most recently, GPS Astro was updated on November 1, 2026 and Noise Log dB Meter on October 30, 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.*