# DBHamPlot vs Field Kit

The clearest difference is update cadence: Field Kit at every 5 days against DBHamPlot's every 42 months. DBHamPlot's advantage is iOS requirement (9.1 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

DBHamPlot ships an update every 42 months, Field Kit every 5 days. The most recent releases landed on October 10, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | DBHamPlot | Field Kit |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/dbhamplot/id799430275/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 42 months | **Every 5 days** |
| Monetization | Free | — |
| Size | 12 MB | 3 MB |
| Requires iOS | **9.1** | 17.0 |
| Devices | iPad | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Thomas Sullivan](https://appshunter.io/developer/307748713) | [JOSEPH PAUL RAYMOND](https://appshunter.io/developer/1887122499) |

## 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


### Field Kit

[App page](https://appshunter.io/ios/app/field-kit-ham-radio-calc/id6782189462)

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

**In-app purchases:** none


## Frequently asked questions

### Is DBHamPlot free?

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

### Is Field Kit free?

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

### Do DBHamPlot or Field Kit have ads?

Neither DBHamPlot nor Field Kit shows ads.

### Which is updated more often, DBHamPlot or Field Kit?

DBHamPlot ships an update every 42 months, and Field Kit every 5 days. Most recently, DBHamPlot was updated on October 10, 2026 and Field Kit on October 5, 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.*