Comparison

Calcutron vs RF Tools ++

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

Head to head
About

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.

Highlights
  • 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
Read full description

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.

About

RF Tools ++

Features
Read full description

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

Calcutron4 screens
RF Tools ++4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

Calcutron costs $0.99 and RF Tools ++ $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

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.

Scorecard3 real differences · 7 level
Calcutron versus RF Tools ++: the parameters behind the verdict, then further details
ParameterCalcutronRF Tools ++
Price$0.99 — better$1.99
Rating5.0 (4 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings4 — better—
Update frequencyEvery 33 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPodiPhone, iPad
Requires iOS14.7 — better17.0
Further details — not scored
Size0 MB42 MB
Age rating4+4+
DeveloperSolo Design, LLCJeff Curtis

In-app purchases

None

Calcutron

No in-app purchases

None

RF Tools ++

No in-app purchases

Questions

Is Calcutron free?
Calcutron costs $0.99, with no in-app purchases.
Is RF Tools ++ free?
RF Tools ++ costs $1.99, with no in-app purchases.
Do Calcutron or RF Tools ++ have ads?
Neither Calcutron nor RF Tools ++ shows ads.
Which is updated more often, Calcutron or RF Tools ++?
Calcutron ships an update every 33 months, and RF Tools ++ every 2 weeks. Most recently, Calcutron was updated on October 23, 2026 and RF Tools ++ on October 19, 2026.

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