Comparison

RF Engineer Toolkit vs Cantennator

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

Head to head
About

RF Engineer Toolkit

This app provides a comprehensive suite of 45 RF and antenna calculators for engineers and technicians. It offers unit-tested formulas for field, site, and lab calculations, including RF exposure and impedance matching. A free version offers 16 calculators, with Pro unlocking all features and advanced options.

Highlights
  • 45 RF and antenna calculators
  • Unit-tested formulas against industry standards
  • Field and site calculations (VSWR, link budget, RF exposure)
  • Design and lab calculations (Smith chart, impedance matching, filters)
  • Everyday RF conversions (dBm, W, V)
  • Free version with 16 calculators
  • Pro version with full access and advanced features
Features
Read full description

RF Engineer Toolkit is the calculator set RF engineers, tower and DAS technicians, PCB designers, and radio amateurs reach for every day. 45 calculators, every formula unit-tested against Pozar, Balanis, ICNIRP 2020, FCC OET-65, and manufacturer cable data — with live results, locale-aware input, and no ads. FIELD AND SITE • VSWR, return loss, reflection coefficient, and mismatch loss from any one value or a wattmeter reading. • Cable loss with manufacturer coefficients (LMR, RG, Heliax, 9913), SWR loss, and ERP. • Link budget with FSPL, cable losses, gains, sensitivity, and margin. • Antenna downtilt and coverage, radio horizon, Fresnel zone with earth bulge and clearance. • RF exposure against FCC and ICNIRP limits, with safe distance for public and occupational exposure. • Antenna separation and co-site isolation, including required spacing. • Dipole, helical, and parabolic dish design, near-field boundaries, and Doppler shift. DESIGN AND LAB • Smith chart with series and shunt elements, lines and stubs, exportable as an image. • Impedance matching networks (L, Pi, T) with Q and bandwidth. • Attenuators (Pi, Tee, bridged-T, L-pad) with E24 and E96 values and real achieved attenuation. • LC filter designer: Butterworth and Chebyshev, low-pass, high-pass, band-pass, and band-stop. • Receiver chain: cascaded gain, noise figure, IP3, noise floor, and SFDR. • Amplifier linearity: P1dB, IP3, back-off, IM3, and PAE. • Microstrip, stripline, coplanar, and differential-pair impedance with synthesis and substrate presets. • Coax impedance, cable delay and phase, quarter-wave transformers, and skin depth. • Power dividers and directional couplers, S-parameter conversion, and intermodulation products. • Rectangular and circular waveguides with WR tables, cutoff, and guide wavelength. EVERYDAY CALCULATORS • dBm, dBW, W, V, dBV, dBµV, dBu, and dBi/dBd conversion. • Wavelength, reactance, resonance, time constants, Ohm's law, dividers, series and parallel circuits. FREE AND PRO 16 calculators are free, and every Pro calculator can be previewed. RF Toolkit Pro unlocks: • All 45 RF calculators. • Searchable calculation history with saved inputs. • PDF exports of calculation result sheets. • Custom cable and substrate libraries. Choose the plan that works for you: • Yearly subscription with a 7-day free trial. • Monthly subscription. • One-time lifetime purchase. Subscriptions renew automatically unless cancelled at least 24 hours before the current period ends. You can manage subscriptions in your Apple Account settings. PRIVACY No accounts. No analytics. No ads. No tracking. Your calculation history stays on your device. Privacy Policy: https://zhsystems.me/privacy-rf-engineer-toolkit-privacy-policy-terms-of-use/ Terms of Use: https://zhsystems.me/turms-rf-engineer-toolkit-terms-of-use/

About

Cantennator

Design and calculate homemade antennas with precision. This tool simplifies antenna building for radio enthusiasts, hobbyists, and engineers, offering ready-to-use calculations for Wi-Fi and radio projects.

Highlights
  • Calculate cantenna dimensions
  • Explore Wi-Fi and radio designs
  • Simplify antenna building
  • Precise formulas
  • Save time on DIY projects
Features
Read full description

Cantennator is your essential tool for designing and calculating home-made antennas with accuracy and ease. Whether you’re a radio enthusiast, hobbyist, or an engineer, this app helps you quickly determine the right measurements and parameters for effective antenna performance. With Cantennator, you can: - Calculate key dimensions for cantenna-style antennas - Explore practical designs for Wi-Fi and radio projects - Simplify antenna building with precise formulas - Save time with ready-to-use calculations for DIY projects Perfect for students, hobbyists, and professionals, Cantennator puts reliable antenna calculation in your pocket. in-app purchase included 
 Lifetime to Remove Ads and get all access Privacy Policy : https://docs.google.com/forms/d/e/1FAIpQLSc5seT5eTkoZtkbUQKlE1qsSQrl8zg3rc1WgOcbGV4XnXZ-zA/viewform?usp=header
 Support URL : https://docs.google.com/document/d/1Dn1gNdDP2AHL7sg-px4rxdLAcoGHlNB8/edit#heading=h.1ionsc3v3xmq

Screenshots

RF Engineer Toolkit4 screens
Cantennator4 screens

Verdict

The call

The clearest difference is ratings volume: Cantennator at 6 against RF Engineer Toolkit's 1. Cantennator also leads on iOS requirement (13.0 vs 17.6). On price, rating, ads and in-app purchases 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. RF Engineer Toolkit sells 3 in-app purchases, starting at $0.99 per month and Cantennator sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for RF Engineer Toolkit against 5.0 for Cantennator. That said, the two scores are not equally well evidenced: Cantennator has 6 ratings behind it against 1, so its average is the more settled of the two.

Scorecard2 real differences · 8 level
RF Engineer Toolkit versus Cantennator: the parameters behind the verdict, then further details
ParameterRF Engineer ToolkitCantennator
PriceFreeFree
Rating5.0 (1 ratings)5.0 (6 ratings)
Positive reviews0.0% of reviews—
Number of ratings16 — better
Update frequencyEvery 2 months—
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.613.0 — better
Further details — not scored
Size12 MB78 MB
Age rating4+4+
DeveloperVladislav ZhirnovNanjibhai Gorasiya

In-app purchases

3 purchases

RF Engineer Toolkit

Subscriptions2
  • Full version / monthly$0.991 Month
  • Full version / year$4.991 Year
One-time1
  • Remove ADS$9.99
1 purchases

Cantennator

One-time1
  • lifetime premium$9.99

Questions

Is RF Engineer Toolkit free?
RF Engineer Toolkit is free to download, with in-app purchases available.
Is Cantennator free?
Cantennator is free to download, with in-app purchases available.
Which has better reviews, RF Engineer Toolkit or Cantennator?
RF Engineer Toolkit and Cantennator are both rated 5.0 out of 5 on the App Store, from 1 and 6 ratings respectively.
Do RF Engineer Toolkit or Cantennator have ads?
Neither RF Engineer Toolkit nor Cantennator shows ads.

Other comparisons