Electrocalc: electronics tools

iSmith

Understanding matching network

EE ToolKit PRO for iPad

Electronics Engineering

matchedRF

automated impedance matching

Smith Charts

Productivity

EE ToolKit PRO

Electronics Engineering

Mobile Electrician

Productivity

Electronics Engineer Helper

Calculators and references

CircuitShepherd

electronic circuit optimizer

iCircuit

Real-time circuit simulator

R&S MobileView

Productivity