Circuit Playground app icon

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.

by Adafruit Industries LLC★ 4.319 ratingsUtilities$2.99Data updated 2026-09-08

Circuit Playground screenshots

Ranked alternatives

Showing 341–360 of 1,000 ranked alternatives.

  1. Pivot Point Calculator app icon

    Pivot Point Calculator

    Do Tri

    Calculate points for trading analysis

    Calculate points to identify support and resistance levels for financial instruments. Input high, low, and close prices to determine Resistance 4, Resistance 3, Resistance 2, Resistance 1, , Support 1, Support 2, Support 3, and Support 4 values.

    ★ 4.716 ratingsFinanceFreeData updated 2026-09-06
  2. Unit Converter - Scientific app icon

    Unit Converter - Scientific

    Ahmet Burak Albayrak

    Convert units with precision

    Convert units across , engineering, and everyday categories. Perform calculations with built-in formulas. Save frequently used conversions. Toggle dark mode. Switch between languages. Provide feedback for improvements.

    ★ 5.016 ratingsUtilitiesFreeData updated 2026-09-06
  3. Calcal - Calculator notepad app icon

    Calcal - Calculator notepad

    Adam Pietrasiak

    Calculate anything you write

    Use as . Type equations to see results instantly. Convert units by writing "198lb to kg". Create named values for reuse. Tap results to copy to clipboard.

    ★ 3.25 ratingsProductivityFreeData updated 2026-09-16
  1. My-BMS app icon

    My-BMS

    Shenzhen Tianqin New Energy Technology Co., Ltd.

    ★ 3.26 ratingsUtilitiesFreeData updated 2026-09-06
  2. 01Converter app icon

    01Converter

    Francesco Burelli

    Number conversion and bit manipulation tool.

    The app converts numbers between binary, hexadecimal, octal, and decimal formats. It includes functions for bit shifting, adding one, and subtracting one, with an optimized keyboard for input.

    ★ 4.52 ratingsProductivityFreeData updated 2026-09-12
  3. Timer 555 Calculator Pro app icon

    Timer 555 Calculator Pro

    Siu Yuen Ho

    Calculate monostable and astable circuits.

    The app calculates monostable and astable circuits. It finds component combinations for desired pulse width or frequency.

    ★ 4.73 ratingsUtilities$0.99Data updated 2026-10-29
  4. CalcBin app icon

    CalcBin

    Joaquin Alejandro Bondulich

    ★ 0.00 ratingsUtilitiesFreeData updated 2026-09-06
  5. Global Skywave app icon

    Global Skywave

    Noah Clark

    Connect with operators globally

    Real-time operator map shows live radio stations worldwide. Tap pins to view station details and call signs. Connect with operators globally, send and receive messages. Track communication history and manage contacts.

    ★ 5.011 ratingsProductivityFreeData updated 2026-09-06
  6. PowerMon app icon

    PowerMon

    Thornwave Labs Inc

    Scan and connect power meters

    Scan for BT-DCPM devices and view measurements including voltage, temperature, battery state of charge, and power relay status. Set alerts for out-of-range values. Connect and configure Bluetooth DC power meter devices.

    ★ 4.410 ratingsUtilitiesFreeData updated 2026-09-13
  7. Units Converters. app icon

    Units Converters.

    V PUGAZHENTHI

    Convert across 60 categories

    Convert across 60 categories with 1327 and 53742 conversions. Switch between acceleration, angle, area, and other measurements. Convert cooking , electrical values, and data transfer speeds. Adjust for charge, density, and current.

    ★ 4.418 ratingsReference$2.99Data updated 2026-09-08
  8. CITIZEN & GST CALCULATOR app icon

    CITIZEN & GST CALCULATOR

    Rajeshbhai Dholakiya

    Calculate taxes with one click

    Calculate taxes with real-time GST rate updates. Input values to compute and GST amounts. Use memory functions M+, M-, MR, MU for financial calculations. Switch between two button layouts for easier navigation.

    ★ 4.818 ratingsUtilitiesFreeData updated 2026-09-06
  9. AircraftPower app icon

    AircraftPower

    James Petty

    Engine performance calculations for aircraft.

    The app calculates and displays the performance of 74 Continental and 108 Lycoming normally-aspirated engines. It offers a graphic display illustrating manual construction methods for determining altitude performance based on user inputs.

    ★ 4.918 ratingsUtilitiesFreeData updated 2026-10-21
  10. PAcalculate app icon

    PAcalculate

    Jose Brusi

    Sound reinforcement and lighting calculations tool.

    The app provides 28 calculators and 47 calculations for pro-audio sound reinforcement and lighting. It includes reference information and utilities for PA, sound systems, and lighting acoustics.

    ★ 5.07 ratingsUtilitiesFreeData updated 2026-10-26
  11. Refractive app icon

    Refractive

    Xavier Daxhelet

    Optical calculations for engineers and students.

    The app calculates the refractive index of transparent materials based on wavelength. It also computes light transmission angles, reflection and transmission coefficients, critical angle, and Brewster’s angle.

    ★ 5.03 ratingsEducationFreeData updated 2026-09-12
  12. Char Info app icon

    Char Info

    Victor Ewert

    View Unicode characters and their details

    View Unicode character details including symbol, display character, description, and numeric values in UTF-8, UTF-16, and decimal. Display binary and hex representations. Provide HTML entity format.

    ★ 5.01 ratingsUtilitiesFreeData updated 2026-09-08

How we rank alternatives

Apps are ranked by functional similarity, category fit, rating confidence, and popularity.