HomeAppsToolsCircuitree ProApps like Circuitree Pro Here are some great alternatives to Circuitree Pro by Mantex Studios : Circuit Playground ★4.4 VoltSim - circuit simulator ★4.6 PROTO - circuit simulator ★4.4 Circuit Jam ★4.5 Timer IC 555 Calculator ★4.5 Droid Circuit Calc ★4.3 Electric Circuit Pro ★4.2 Electronics Toolbox ★4.3 Simple Circuit Builder, Series ★4.2 ElectroCalc - Electronics ★4.7 Electronics toolbox pro ★4.6 Droid Circuit Calc Pro ★4.0 Electronics Calculator ★4.6 Electronic circuits calculator ★4.0 Resistor ratio calculator ★3.9 Electronics Toolbox ★4.6