Apps Like Circuit Playground for iPhone and iPad
Calculate component values and resistor codes
Calculate component values for Op Amp, 555, RC Filter, and Resistor Divider circuits. Decode resistor and capacitor codes. Compute power, resistance, current, and voltage using Ohm's Law and Power Calculators.
Circuit Playground screenshots
Ranked alternatives
Showing 361–380 of 1,000 ranked alternatives.

dB Calculator
Rohde & Schwarz GmbH & Co. KG
Calculate dBm and voltage levels
Calculate power levels in dBm and watt with addition and subtraction. Convert between dBm, dBW, mW, W, mV, V, dBV, dBµV, and dBu. Adjust for impedance. Perform voltage calculations for correlated and uncorrelated values.


Prime Checker
Heart Solutions
Calculate number properties and values.
The app calculates integer factorization, Euler's totient function, and primitive roots. It also finds x, y values for various quadratic forms based on the input number's properties.

Units: Fast & Pro Converter
Rajendran Sajith Sajindran
Convert with precision and speed
Convert across 20 categories including length, weight, temperature, and more. Perform real-time conversions with 8-decimal precision. Switch between metric and imperial systems. Use scientific notation and dark mode.

Number Converter
Kintarla Pty Ltd
Convert numbers between different bases.
The app converts numbers between decimal, binary, octal, and hexadecimal bases. It restricts input to valid digits for the selected base.


Wire Gauge Calculator
Paul Pollock
Calculate wire resistance and gauge.
The app calculates wire resistance based on gauge and length. It also determines the minimum wire gauge for a given material, length, and maximum voltage drop.




Find Radio Code Instantly
Uros Radovanovic
Check codes by serial number
Unlock codes by entering the serial number found on the label. Verify availability after payment. Codes are unique to serial numbers, not VINs. Check for battery disconnection or new installation as common causes for lock.





Hantek365
君虎 刘
Digital multimeter for iPad visualization.
The app wirelessly transmits voltage, current, resistance, capacitance, and on-off measurements via Bluetooth to an iPad. It records measurements in real time and creates trend curves.

MicroWave Calculator
Keysight Technologies, Inc
Calculate measurement errors
Calculate measurement errors using directivity and mismatch error tools. Convert ratios to decibels. Compute noise figures and antenna parameters. Input values and retrieve calculated results.
How we rank alternatives
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