# GPS Astro vs TelecomsCalc

The clearest difference is monetization model: GPS Astro at free against TelecomsCalc's paid. GPS Astro also leads on update cadence (monthly vs every 17 months) and iOS requirement (9.0 vs 16.0). TelecomsCalc's advantage is review sentiment (100% vs 83%). On price, ads, in-app purchases and device support there is nothing between them.

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

GPS Astro ships an update monthly, TelecomsCalc every 17 months. The most recent releases landed on September 30, 2026 and June 3, 2026 respectively.

## The numbers

| Metric | GPS Astro | TelecomsCalc |
| --- | --- | --- |
| Price | $0.99 | $0.99 |
| Rating | **[4.8 (117 ratings)](https://appshunter.io/ios/app/gps-astro/id369884042/reviews)** | — |
| Number of ratings | **117** | — |
| Positive reviews | 83.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 17 months |
| Monetization | **Free** | Paid |
| Size | 54 MB | 1 MB |
| Requires iOS | **9.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Esirion AG](https://appshunter.io/developer/369884045) | [Tien Hoang](https://appshunter.io/developer/1743631038) |

## 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


### TelecomsCalc

[App page](https://appshunter.io/ios/app/telecomscalc/id6566176373)

This app offers a suite of tools for wireless communication and antenna engineering. It simplifies complex calculations for unit conversion, path loss, antenna tilt, Fresnel radius, and more, aiding students and professionals in wireless network planning.

**Highlights:** Unit Converter (dBm, watt, milliwatt), Free Space Path Loss Calculator, Antenna Tilt Coverage Calculator, Fresnel Radius Calculator, Parabolic Antenna Gain Calculator, VSWR to Reflection Coefficient Converter, Frequency to Wavelength Converter

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is GPS Astro free?

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

### Is TelecomsCalc free?

TelecomsCalc costs $0.99, with no in-app purchases.

### Do GPS Astro or TelecomsCalc have ads?

Neither GPS Astro nor TelecomsCalc shows ads.

### Which is updated more often, GPS Astro or TelecomsCalc?

GPS Astro ships an update monthly, and TelecomsCalc every 17 months. Most recently, GPS Astro was updated on September 30, 2026 and TelecomsCalc on June 3, 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.*