Attenuator vs RF Tools ++
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Attenuator
Calculate output voltage, power, and attenuation based on input values and dB of attenuation. Features NMR-specific calculations for pulses and measures local magnetic fields and barometric pressure.
- Calculate output voltage and power
- Specify input voltage (Vpp or Vrms)
- Calculate attenuation in dB
- NMR pulse calculations
- Measure local magnetic field
- Display barometric pressure
Read full descriptionHide full description
Attenuator is a utility for anyone working with radio frequency sources and needs to know power and voltage after attenuation. You can specify an input voltage (Vpp or Vrms) and dB of attenuation to get the output voltage, power and attenuation. The impedance can be specified, typically 50Ω for most systems. There is a new emphasis on NMR utility, with options for calculating pulses based on reference power and pulse length. Powers are in Watts, dBm, and dB values. Measure local magnetic field to check stray static fields from magnets. See the local barometric pressure, useful if the magnet boil-off is high
RF Tools ++
Read full descriptionHide 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
Verdict
The clearest difference is price: Attenuator at Free against RF Tools ++'s $1.99. RF Tools ++'s advantage is in-app purchases (none vs 1) and update cadence (every 2 weeks vs every 7 months). On ads, device support and iOS requirement 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
Attenuator is free to download; RF Tools ++ costs $1.99 up front. Attenuator sells 1 one-off in-app purchase. RF Tools ++ asks for nothing beyond the download.
Attenuator ships an update every 7 months, RF Tools ++ every 2 weeks. The most recent releases landed on July 29, 2026 and September 23, 2026 respectively.
| Parameter | Attenuator | RF Tools ++ |
|---|---|---|
| Price | Free — better | $1.99 |
| Rating | 5.0 (8 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 8 — better | — |
| Update frequency | Every 7 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 17.6 | 17.0 — better |
| Further details — not scored | ||
| Size | 1 MB | 42 MB |
| Age rating | 4+ | 4+ |
| Developer | Tim E. Burrow | Jeff Curtis |
In-app purchases
Attenuator
- Remove all ads$1.99
RF Tools ++
No in-app purchases
Questions
Is Attenuator free?
Is RF Tools ++ free?
Do Attenuator or RF Tools ++ have ads?
Which is updated more often, Attenuator or RF Tools ++?
Other comparisons
