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About
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.
✓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
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What's New in RF Engineer Toolkit
6
November 4, 2026
6.0 is a rebuild. Every calculator now shows results as you type, accepts comma or point decimals, and every formula is unit-tested against published references. Ads are gone. New: Smith chart, impedance matching networks, attenuator designer, LC filter designer, receiver chain (NF, IP3, SFDR), amplifier linearity, antenna separation and isolation, power dividers and couplers, VSWR and return loss. New Pro features: calculation history with search and notes, PDF and text export, custom cable and substrate library, favourites. Fixed: RF exposure limits, Fresnel radius, cable loss coefficients, coax cutoff, CPW impedance, radar range, dB unit conversions and waveguide tables returned wrong values in earlier versions. All corrected and covered by tests. Existing "Remove Ads" purchasers: your purchase now unlocks RF Toolkit Pro for life. Thank you.
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Subscriptions & In-App Purchases
Full version / year
Remove All advertisement yearly
$4.991 Year
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FAQ
What is RF Engineer Toolkit?
RF Engineer Toolkit is a mobile application that offers a collection of 45 calculators specifically designed for RF engineers, tower technicians, and radio amateurs. It covers a wide range of calculations for field, site, and lab applications.
How many calculators are included in RF Engineer Toolkit?
The app provides a total of 45 RF and antenna calculators. 16 of these are available for free, while the Pro version unlocks all 45 calculators.
Are the formulas in RF Engineer Toolkit accurate?
Yes, all formulas in RF Engineer Toolkit have been unit-tested against reputable sources like Pozar, Balanis, ICNIRP 2020, FCC OET-65, and manufacturer cable data to ensure accuracy.
Does RF Engineer Toolkit have ads?
No, RF Engineer Toolkit is ad-free. The developers have stated 'No ads' in the app's description, ensuring an uninterrupted user experience.
What are the subscription options for RF Engineer Toolkit Pro?
RF Engineer Toolkit Pro offers a yearly subscription with a 7-day free trial, a monthly subscription, and a one-time lifetime purchase option. Subscriptions automatically renew unless cancelled.
Can I export calculations from RF Engineer Toolkit?
Yes, the Pro version of RF Engineer Toolkit allows for PDF exports of calculation result sheets. This feature is not available in the free version.
Is my calculation history saved in RF Engineer Toolkit?
Your calculation history stays on your device and is searchable with saved inputs in the Pro version of RF Engineer Toolkit. There are no accounts, analytics, or tracking involved.
What devices is RF Engineer Toolkit available on?
RF Engineer Toolkit is available on iPhone and iPad devices, as indicated by its supported devices list.
