https://itunes.apple.com/pl/app/electro … 20052?mt=8

The app’s natural touch experience is designed for all phones and tablets. Whether you want to design a power supply circuit, program an Arduino board or analyze an analog signal on-the-go, Electronic Lab gives you the best experience.

It brings the bulky tools of the electrical/electronic industry to the palm of your hand.
Features
Electronic Color code
Color picker
Alpha-Numeric Code Identification
Sample circuits
Component libraries
Calculators
Component Datasheet
Formula
Calculators
Unit Conversion
Arduino Code editor

Circuit design and simulation
PCB design
Chip Simulation
Waveform audio visualizer
Signal to Audio
Page Bookmarking

The following features require the Bluetooth module
Voltmeter
Ammeter
Oscilloscope
Voltage generator
Frequency generator
Chip programming (Arduino)

Contribution
Share Simulations
Shares circuits
Share code
Add formula
Add Sample circuit
Add PCB design