EveryCircuit Free

EveryCircuit Free

1,000,000 - 5,000,000 downloads

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All joking aside, this time you will understand how electronic circuits work.

"I stumbled upon some serious gold" - GeekBeat.tv
"This app takes design to a whole new level of interactivity" - Design News

Build any circuit, tap play button, and watch dynamic voltage, current, and charge animations. This gives you insight into circuit operation like no equation does. While simulation is running, adjust circuit parameters with analog knob, and the circuit responds to your actions in real time. You can even generate an arbitrary input signal with your finger!

That's interactivity and innovation you can't find in best SPICE tools for PC like Multisim, LTspice, OrCad or PSpice (trademarks belong to their respective owners).

EveryCircuit is not just an eye candy. Under the hood it packs custom-built simulation engine optimized for interactive mobile use, serious numerical methods, and realistic device models. In short, Ohm's law, Kirchhoff's current and voltage laws, nonlinear semiconductor device equations, and all the good stuff is there.

Growing library of components gives you freedom to design any analog or digital circuit from a simple voltage divider to transistor-level masterpiece.

Schematic editor features automatic wire routing, and minimalistic user interface. No nonsense, less tapping, more productivity.

Simplicity, innovation, and power, combined with mobility, make EveryCircuit a must-have companion for high school science and physics students, electrical engineering college students, breadboard and printed circuit board (PCB) enthusiasts, and ham radio hobbyists.

Free version has limited sandbox area, but it can still impress you. If you need a larger playground, a full version is available. The full version will employ all of your imagination, and all the screen area of your tablet. The full version also lets you join EveryCircuit cloud community to store your circuits on cloud, access them from any of your Android devices, explore public community circuits and share your own designs.

Thanks to Prof. N. Maghari for technical discussions, feedback, and help with designing circuit examples.

+ Growing public library of community circuits
+ Animations of voltage waveforms and current flows
+ Animations of capacitor charges
+ Analog control knob adjusts circuit parameters
+ Automatic wire routing
+ Oscilloscope
+ Seamless DC and transient simulation
+ Single play/pause button controls simulation
+ Saving and loading of circuit schematic
+ Mobile simulation engine built from ground-up
+ Shake the phone to kick-start oscillators
+ Intuitive user interface
+ No Ads

+ Sources, signal generators
+ Controlled sources (VCVS, VCCS, CCVS, CCCS)
+ Resistors, capacitors, inductors, transformers
+ Potentiometer, lamp
+ Switches, SPST, SPDT
+ Diodes, Zener diodes, light emitting diodes (LED)
+ MOS transistors (MOSFET)
+ Bipolar junction transistors (BJT)
+ Ideal operational amplifier (opamp)
+ Digital logic gates, AND, OR, NOT, NAND, NOR, XOR, XNOR

+ More components

If you like it, please rate, review, and buy!

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Recently changed in this version

Deletion of a single wire in a node
Drop component on top of another to copy parameters
Display of MOSFET region of operation
Easier to select ground component

Comments and ratings for EveryCircuit Free
  • (70 stars)

    by Daniel Costello on 13/04/2014

    Awesome app, if I needed it I'd buy it.

  • (70 stars)

    by Shreyas Adep on 11/04/2014


  • (70 stars)

    by M Arslan Ahmad on 11/04/2014


  • (70 stars)

    by James Wood on 09/04/2014

    Don't get sucked into buying the full version,, despite the name most circuits other than really basic stuff will simulate incorrectly, also there is a severe lack of components and even basic features like changing the time step.

  • (70 stars)

    by karan sathvara on 07/04/2014

    Students for this app very useful

  • (70 stars)

    by Pesahov Avi on 06/04/2014

    What about Full PC version?

  • (70 stars)

    by marshal dawane on 05/04/2014