Comparison

RF vs HamHamHam

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

Head to head
About

RF

Features
Read full description

This tool works as an equation solver : you can choose the parameter (variable) to be computed, and fix the other parameters. It also supports multiple systems of units : American (US) and metric (SI). 1) Quarter Wave Antenna : you can compute the length of a quarter wave antenna or solve other parameters (frequency or wave length). 2) Path Loss in Free Space : you can compute the path loss in free space or solve other parameters (frequency, wave length, or distance). 3) VSWR & S11 : you can compute the voltage standing wave ratio or solve other parameters (modulus of reflection coefficient (linear or logarithmic), argument of reflection coefficient, real part of input impedance, imaginary part of input impedance). 4) Power Converter : you can convert the power between [dBm] or [W] units, and compute the tension [dBuV] (into 50 [ohms]). 5) Reflected & Delivered Power : you can compute the ratio of the delivered power to input power or solve other parameters (ratio of reflected power to input power, modulus of reflection coefficient, voltage standing wave ratio). 6) Microstrip Transmission Line : you can compute the characteristic impedance of a microstrip transmission line, or solve other parameters (relative permittivity, track’s thickness, distance from the track to the ground plane, or track’s width). 7) Stripline Transmission Line : you can compute the characteristic impedance of a stripline transmission line, or solve other parameters (relative permittivity, track’s thickness, distance from the track to one reference plane, or track’s width). Some remarks : -The microstrip solver is based on the IPC-D-317A design guidelines. -The stripline solver is based on the IPC-D-317A design guidelines.

About

HamHamHam

Features
Read full description

Tool useful for Ham radio operators. Using this method will help you learn the Morse code by tracking the test results and your progress. You can configure your speed settings based on your sensitivity. Features to track your QSOs and export to ADIF format

Screenshots

RF4 screens
HamHamHam4 screens

Verdict

The call

The clearest difference is price: HamHamHam at Free against RF's $0.99. HamHamHam also leads on update cadence (every 2 weeks vs every 8 months). RF's advantage is iOS requirement (13.0 vs 17.2). On ads, in-app purchases and device support there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

HamHamHam is free to download; RF costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

RF ships an update every 8 months, HamHamHam every 2 weeks. The most recent releases landed on October 7, 2026 and October 3, 2026 respectively.

Scorecard3 real differences Β· 3 level
RF versus HamHamHam: the parameters behind the verdict, then further details
ParameterRFHamHamHam
Price$0.99Free β€” better
Update frequencyEvery 8 monthsEvery 2 weeks β€” better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPodiPhone, iPad
Requires iOS13.0 β€” better17.2
Further details β€” not scored
Size6 MB1 MB
Age rating4+4+
DeveloperJulien GeissbuehlerAndrea Biancat

In-app purchases

None

RF

No in-app purchases

None

HamHamHam

No in-app purchases

Questions

Is RF free?
RF costs $0.99, with no in-app purchases.
Is HamHamHam free?
HamHamHam is free to download, with no in-app purchases.
Do RF or HamHamHam have ads?
Neither RF nor HamHamHam shows ads.
Which is updated more often, RF or HamHamHam?
RF ships an update every 8 months, and HamHamHam every 2 weeks. Most recently, RF was updated on October 7, 2026 and HamHamHam on October 3, 2026.

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