Comparison

DBHamPlot vs Max Calc

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

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
Read full description

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.

About

Max Calc

This app offers a versatile calculation suite, combining standard, scientific, developer, and accounting functions. It also includes a unit converter and tools for health and date calculations, all within a user-friendly interface.

Highlights
  • Standard and Scientific Calculator
  • Developer Calculator (hex, binary)
  • Accounting Calculator
  • 130+ Unit Converter
  • Body and Date/Time Calculator
  • History tracking
  • Customizable result formatting
Features
Read full description

Max Calc: Your All-in-One Calculator App Max Calc is more than just a calculator; it's a comprehensive toolset designed to simplify your calculations across various domains. With its six-in-one functionality, you can effortlessly handle everything from basic arithmetic to complex scientific computations, developer-specific tasks, financial calculations, unit conversions, and even personal health metrics. Key features include: * Standard and Scientific Calculator: Perform basic and advanced calculations with ease. * Developer Calculator: Work with hexadecimal, binary, and 7-64 bit numbers, along with integer/real number CPU representation and signed/unsigned arithmetic. * Accounting Calculator: Tackle financial calculations with dedicated functions. * 130+ Unit Converter: Convert between various units of measurement effortlessly. * Body and Date/Time Calculator: Calculate BMI, age, and more. Max Calc is designed with simplicity in mind, providing a user-friendly interface without compromising on functionality. Enjoy features like memory storage, history tracking, customizable result formatting, and more.

Screenshots

Max Calc4 screens

Verdict

The call

The clearest difference is in-app purchases: DBHamPlot at none against Max Calc's 2. DBHamPlot also leads on iOS requirement (9.1 vs 17.0). Max Calc's advantage is update cadence (every 9 days 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

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

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

UpkeepUpdate frequency

DBHamPlot ships an update every 42 months, Max Calc every 9 days. The most recent releases landed on September 8, 2026 and June 4, 2026 respectively.

Scorecard3 real differences · 7 level
DBHamPlot versus Max Calc: the parameters behind the verdict, then further details
ParameterDBHamPlotMax Calc
PriceFreeFree
Rating5.0 (1 ratings)5.0 (1 ratings)
Positive reviews—100.0% of reviews
Number of ratings11
Update frequencyEvery 42 monthsEvery 9 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFreeFree
DevicesiPadiPhone, iPad — better
Requires iOS9.1 — better17.0
Further details — not scored
Size12 MB8 MB
Age rating4+4+
DeveloperThomas SullivanAnatolii Mazkun

Customer experience

DBHamPlot

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Max Calc

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

DBHamPlot

No in-app purchases

2 purchases

Max Calc

One-time2
  • 5 days Free Using All PremiumFree
  • Premium features$4.99

Questions

Is DBHamPlot free?
DBHamPlot is free to download, with no in-app purchases.
Is Max Calc free?
Max Calc is free to download, with in-app purchases available.
Which has better reviews, DBHamPlot or Max Calc?
DBHamPlot and Max Calc are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.
Do DBHamPlot or Max Calc have ads?
Neither DBHamPlot nor Max Calc shows ads.
Which is updated more often, DBHamPlot or Max Calc?
DBHamPlot ships an update every 42 months, and Max Calc every 9 days. Most recently, DBHamPlot was updated on September 8, 2026 and Max Calc on June 4, 2026.

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