# GPS Format Converter vs Propeller Mobile

The clearest difference is price: Propeller Mobile at Free against GPS Format Converter's $0.99. Propeller Mobile also leads on update cadence (every 2 weeks vs every 3 months) and iOS requirement (16.1 vs 18.6). GPS Format Converter's advantage is review sentiment (81% vs 40%) and rating (4.5 vs 4.2). On ratings volume, ads, in-app purchases and device support there is nothing between them.

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

GPS Format Converter holds the better App Store score, 4.5 against 4.2. Both are backed by a comparable volume of ratings — 6 and 10 respectively. Written reviews point the same way: 81% of GPS Format Converter's written reviews are positive against 40% of Propeller Mobile's.

GPS Format Converter ships an update every 3 months, Propeller Mobile every 2 weeks. The most recent releases landed on October 13, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | GPS Format Converter | Propeller Mobile |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[4.5 (6 ratings)](https://appshunter.io/ios/app/gps-format-converter/id1323303352/reviews)** | [4.2 (10 ratings)](https://appshunter.io/ios/app/propeller-mobile-3d-mapping/id1644272004/reviews) |
| Number of ratings | 6 | **10** |
| Positive reviews | **81.0% of reviews** | 40.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 weeks** |
| Monetization | Paid | **Free** |
| Size | 5 MB | 215 MB |
| Requires iOS | 18.6 | **16.1** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Bitwire Technologies Limited](https://appshunter.io/developer/1323303351) | [Propeller Aerobotics Pty Ltd](https://appshunter.io/developer/1077083929) |

## What reviewers say

### GPS Format Converter

[App page](https://appshunter.io/ios/app/gps-format-converter/id1323303352)

Easily convert GPS coordinates between Degrees, Minutes, Seconds, Decimal Minutes, Decimal Degrees, and UTM formats. Share your current location or copy converted coordinates to the clipboard. Open locations directly in popular map applications.

**Highlights:** Convert between DMS, DMM, DD, and UTM, Get current location in all formats, Share location with one click, Copy coordinates to clipboard, Open coordinates in Apple Maps, Google Maps, or Waze

**Features:** Vision Pro support

**In-app purchases:** none


### Propeller Mobile

[App page](https://appshunter.io/ios/app/propeller-mobile-3d-mapping/id1644272004)

This app provides field crews with a mobile 3D site inspection tool. It enables real-time navigation, site checks, and data capture to facilitate faster decision-making and keep projects on track.

**Highlights:** Live navigation, 3D site mapping, Media documentation, Grade checking, Cut-fill analysis, Surface area measurement, Stockpile volumes

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

**In-app purchases:** none


## Frequently asked questions

### Is GPS Format Converter free?

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

### Is Propeller Mobile free?

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

### Which has better reviews, GPS Format Converter or Propeller Mobile?

GPS Format Converter is rated higher. GPS Format Converter averages 4.5 out of 5 from 6 ratings, while Propeller Mobile averages 4.2 from 10 ratings.

### Do GPS Format Converter or Propeller Mobile have ads?

Neither GPS Format Converter nor Propeller Mobile shows ads.

### Which is updated more often, GPS Format Converter or Propeller Mobile?

GPS Format Converter ships an update every 3 months, and Propeller Mobile every 2 weeks. Most recently, GPS Format Converter was updated on October 13, 2026 and Propeller Mobile on October 1, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*