# GPD vs Current Altitude + Compass

The clearest difference is in-app purchases: GPD at none against Current Altitude + Compass's 1. GPD also leads on ads (none vs shown). Current Altitude + Compass's advantage is iOS requirement (11.0 vs 15.0). On price, update cadence and device support there is nothing between them.

Both are free to download. Current Altitude + Compass sells 1 one-off in-app purchase. GPD asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 5, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | GPD | Current Altitude + Compass |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.5 (2 ratings)](https://appshunter.io/ios/app/current-altitude-plus-compass/id6479185011/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 20 MB | 48 MB |
| Requires iOS | 15.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Charles Steinmetz](https://appshunter.io/developer/1514567876) | [RedTracker LLC](https://appshunter.io/developer/1460840859) |

## What reviewers say

### GPD

[App page](https://appshunter.io/ios/app/gpd/id1514567877)

This app helps farmers assess planting uniformity by measuring seed spacing. It calculates the Coefficient of Variation (CV%) and analyzes distribution regularity, identifying acceptable spacing, doubles, and skips to improve crop yield.

**Highlights:** Measures seed spacing uniformity, Calculates Coefficient of Variation (CV%), Analyzes distribution regularity (acceptable, doubles, skips), Identifies causes of planting errors, Aids in improving plantability

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

**In-app purchases:** none


### Current Altitude + Compass

[App page](https://appshunter.io/ios/app/current-altitude-plus-compass/id6479185011)

This utility app provides hikers and explorers with essential outdoor information. It offers real-time altitude, a digital compass, air quality, UV index, and a flashlight. Key locations can be saved offline for easy navigation.

**Highlights:** Real-time altitude readings, Digital compass navigation, Air quality index updates, UV index monitoring, Offline location saving, Built-in flashlight

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $3.99 | one-time |


## Frequently asked questions

### Is GPD free?

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

### Is Current Altitude + Compass free?

Current Altitude + Compass is free to download, with in-app purchases available.

### Do GPD or Current Altitude + Compass have ads?

Current Altitude + Compass shows ads; GPD does not.

### Which is updated more often, GPD or Current Altitude + Compass?

GPD ships an update every 2 months, and Current Altitude + Compass every 2 months. Most recently, GPD was updated on October 5, 2026 and Current Altitude + Compass on October 6, 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.*