DBHamPlot vs RadioEquations
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DBHamPlot
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.
- 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
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Compute distance and bearing using Maidenhead location. This was originally intended for use by amateur radio operators who participate in microwave communications however it can be used by any ham in order to determine a distance and bearing to another radio amateur. This version specifically for the iPad provides map and controls all on one screen. The larger map area over both iPhone versions should prove helpful. You get a map of the source and target along with a pin annotation and an overlay identifying the six-digit grid area. If a user touches an empty location on the screen for one second a new annotation is added at that spot identifying the grid. Any user-added annotations are removed if a new source or target are entered. This feature is great because you can zoom in on a location, touch the screen, and get a 6 digit grid; this is especially handy when your microwave buddy pulls over to the side of the road to make a contact with you (or someone else) but he/she has no idea what their grid square is.
RadioEquations
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.
- Access to common radio telecommunications functions
- Accompanying descriptions for comprehension
- Designed for professionals in the field
- Easy-to-use interface
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Easily access commonly used functions in the radio telecommunications field. Accompanying descriptions to help with comprehension for those that may be unfamiliar with the functions
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | DBHamPlot | RadioEquations |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (2 ratings) |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 1 | 2 — better |
| Update frequency | Every 42 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | Free |
| Devices | iPad | iPhone, iPad — better |
| Requires iOS | 9.1 — better | 16.4 |
| Further details — not scored | ||
| Size | 12 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | Thomas Sullivan | Robert J Sarvis Jr |
Customer experience
DBHamPlot
RadioEquations
In-app purchases
DBHamPlot
No in-app purchases
RadioEquations
- Unlock Advanced Functions$0.99
- Unlock AC Functions$0.99
