# DBHamPlot vs RadioEquations

The clearest difference is in-app purchases: DBHamPlot at none against RadioEquations's 2. DBHamPlot also leads on iOS requirement (9.1 vs 16.4). RadioEquations's advantage is update cadence (every 3 months vs every 42 months). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. RadioEquations sells 2 one-off in-app purchases. DBHamPlot asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for DBHamPlot against 5.0 for RadioEquations. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

DBHamPlot ships an update every 42 months, RadioEquations every 3 months. The most recent releases landed on September 8, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | DBHamPlot | RadioEquations |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/dbhamplot/id799430275/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/radioequations/id6451230870/reviews) |
| Number of ratings | 1 | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 42 months | **Every 3 months** |
| Monetization | Free | Free |
| Size | 12 MB | 9 MB |
| Requires iOS | **9.1** | 16.4 |
| Devices | iPad | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Thomas Sullivan](https://appshunter.io/developer/307748713) | [Robert J Sarvis Jr](https://appshunter.io/developer/1531648349) |

## What reviewers say

### DBHamPlot

[App page](https://appshunter.io/ios/app/dbhamplot/id799430275)

Calculate distance and bearing between two locations using Maidenhead grid squares. This tool is designed for amateur radio operators to easily determine proximity and direction to other hams, featuring an interactive map for pinpointing locations and identifying grid areas.

**Highlights:** Compute distance and bearing, Maidenhead location input, Map display with annotations, Identify six-digit grid areas, Interactive map for location pinpointing, User-added annotation removal

**Features:** macOS Compatibility

**In-app purchases:** none


### RadioEquations

[App page](https://appshunter.io/ios/app/radioequations/id6451230870)

This utility app provides quick access to essential functions for radio telecommunications professionals. It includes helpful descriptions to ensure users understand each function, even if they are new to the field.

**Highlights:** Access to common radio telecommunications functions, Accompanying descriptions for comprehension, Designed for professionals in the field, Easy-to-use interface

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Advanced Functions | $0.99 | one-time |
| Unlock AC Functions | $0.99 | one-time |


## Frequently asked questions

### Is DBHamPlot free?

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

### Is RadioEquations free?

RadioEquations is free to download, with in-app purchases available.

### Which has better reviews, DBHamPlot or RadioEquations?

DBHamPlot and RadioEquations are both rated 5.0 out of 5 on the App Store, from 1 and 2 ratings respectively.

### Do DBHamPlot or RadioEquations have ads?

Neither DBHamPlot nor RadioEquations shows ads.

### Which is updated more often, DBHamPlot or RadioEquations?

DBHamPlot ships an update every 42 months, and RadioEquations every 3 months. Most recently, DBHamPlot was updated on September 8, 2026 and RadioEquations on September 15, 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.*