RF vs HamHamHam
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
RF
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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, trackβs thickness, distance from the track to the ground plane, or trackβs width). 7) Stripline Transmission Line : you can compute the characteristic impedance of a stripline transmission line, or solve other parameters (relative permittivity, trackβs thickness, distance from the track to one reference plane, or trackβs 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.
HamHamHam
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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
Verdict
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
HamHamHam is free to download; RF costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
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.
| Parameter | RF | HamHamHam |
|---|---|---|
| Price | $0.99 | Free β better |
| Update frequency | Every 8 months | Every 2 weeks β better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 13.0 β better | 17.2 |
| Further details β not scored | ||
| Size | 6 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Julien Geissbuehler | Andrea Biancat |
In-app purchases
RF
No in-app purchases
HamHamHam
No in-app purchases









