Calcutron vs RF Tools ++
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Calcutron
This tool helps designers, developers, and artists proportionally resize digital assets. Easily calculate new dimensions for images, videos, or layouts by entering one measurement.
- Calculate missing dimension automatically
- Use common or custom aspect ratios
- Save frequently used sizes
- Swap width and height with one tap
- Round dimensions to specified decimal places
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Calcutron is a tool for designers, developers, graphic artists, photographers, or anyone who needs to proportionally resize digital assets or layouts based on their current size or aspect ratio. Calcutron makes it easy to quickly determine the new dimensions of any asset, such as video, photographs, or graphics. Simply enter one dimension and the other dimension is automatically calculated for you based on the original size or aspect ratio. In addition to graphic-professionals, Calcutron is a great tool for programmers who need to resize images or video in code. It can be a real time-saver over doing all the calculations manually. FEATURES • Enter the width or height to automatically calculate the other dimension. • Choose from a list of common aspect ratios or enter your own. • Save your most-used sizes as favorites. • Quickly swap width and height values with a single tap. • Round calculated dimensions up, down, or nearest - from 0-4 decimal places.
RF Tools ++
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RF Tools provides essential utilities for RF and link budget calculations including: Antenna Factor, Field Intensity, Phase, Time Delay, Wavelength, Cable Calculator, Cable Loss, Cable K1 K2 estimator, dBm/Watts conversions, dBµA/Amps conversions, dBµV/Volts conversions, Gain conversions, Power conversions, Free Space Loss, VHF/UHF Line of Sight, Fade Margin, Link Margin, Radar Max/Min Range, VSWR/Power/Return Loss Conversions, Radar Equation Solver and several reference items. The cable loss tool includes generic cables and many cables from Andrew, Beiden, Harbour Industries, Huber+Suhner, IW-Microwave, MegaPhase, Micro-Coax, PIC Wire & Cable, Times Microwave and Webro. Calculations are added regularly
Screenshots
Verdict
The clearest difference is update cadence: RF Tools ++ at every 2 weeks against Calcutron's every 33 months. Calcutron's advantage is price ($0.99 vs $1.99) and iOS requirement (14.7 vs 17.0). On ads, in-app purchases and device support 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
Calcutron costs $0.99 and RF Tools ++ $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Calcutron ships an update every 33 months, RF Tools ++ every 2 weeks. The most recent releases landed on October 23, 2026 and October 19, 2026 respectively.
| Parameter | Calcutron | RF Tools ++ |
|---|---|---|
| Price | $0.99 — better | $1.99 |
| Rating | 5.0 (4 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 4 — better | — |
| Update frequency | Every 33 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 14.7 — better | 17.0 |
| Further details — not scored | ||
| Size | 0 MB | 42 MB |
| Age rating | 4+ | 4+ |
| Developer | Solo Design, LLC | Jeff Curtis |
In-app purchases
Calcutron
No in-app purchases
RF Tools ++
No in-app purchases









