PSAP SIM Helper by PhoneFusion, Inc.






10+ similar apps compared and reviewed
R&S PQA is great, but it's not the only option. Explore 10+ similar apps for iPhone and iPad, each reviewed and rated by real users. Find free alternatives, premium upgrades, and hidden gems.




















A comprehensive suite of calculators for electricians and technicians, offering direct inputs and clear outputs for power, impedance, signal, and conversion tasks. Streamline calculations for Ohm's Law, RF/dB, component impedance, and transmission line properties with formula-driven views.


This physics and math tool quickly calculates wave properties like wavelength and frequency. It supports various units, high precision, and allows results to be copied to other applications. The app is lightweight, ad-free, and designed with privacy in mind.






This app provides real-time insights into your mobile network performance. It measures speeds, tests video streaming quality, and monitors connectivity trends 24/7. Understand your network's reliability and contribute to global network improvements.




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.