Electryx app icon iPhone · iPad · Mac

Circuits that come alive.

Electryx is a real-time circuit simulator. Drop in parts, wire them up and watch current flow, LEDs glow and waveforms move — then change any value while it runs.

Coming soon to theApp Store See what it does

Simulation runs on your device. No account needed.

Electryx on iPad running the PWM-to-Analog Converter example, with the parts library, an oscilloscope comparing the PWM input with the filtered output, and live values for the selected capacitor
Electryx on iPhone running a sensor low-pass filter, with the oscilloscope comparing its input and output
Real-timeSimulation you can tweak live
45+ partsFrom resistors to op-amps
On-deviceNo account, no ads
English · УкраїнськаLight and dark mode
Simulate

A SPICE-style engine, built for interaction.

Electryx solves your circuit continuously, so the schematic itself becomes the display: animated current, glowing LEDs, heating parts and live readings on every component.

  • Transient analysis in real timeStart, pause and reset with one tap. Adaptive time stepping keeps it accurate and smooth.
  • Change values while it runsEdit resistance, voltage, frequency or switch state and see the circuit respond instantly.
  • Live AC analysisLock sinusoidal sources to one frequency and read voltage phasors on every node.
  • Simulation speed and noiseSet how much circuit time passes per second, and inject noise to kick-start oscillators.
  • Heating and damageOptional thermal models show parts warming up — and what happens when you push them too far.
Sensor-noise low-pass filter running live, with voltage, current, resistance and power for the selected resistor
Settings with simulation accuracy and appearance options
Measure

An oscilloscope in your pocket.

Trace any node voltage or component current, compare channels and keep the signals you care about.

  • Scope tracesPick a wire or component, tap the eye, and its waveform appears with measurements.
  • XY mode and AC sweepPlot one channel against another, or sweep frequency for a Bode plot.
  • Saved capturesFreeze a moment, name it and compare it later. Export to CSV for your own analysis.
  • Meters and probesAmmeters, voltmeters and probes read values right on the schematic.
Oscilloscope comparing the input and filtered output of a 10 Hz low-pass filter, with measurements
Saved captures of a low-pass filter, bridge rectifier ripple and an RLC resonance
Learn

Learn by building.

Guided examples open as your own editable copies, with clear steps to try. The Electricity Map connects every topic, from Ohm’s law to radio.

  • Examples and lessonsDC circuits, AC and filters, semiconductors, logic and more — each with things to try.
  • Electricity MapExplore 35 topics across 6 chapters and see how ideas build on each other.
  • Reference and calculatorsFormulas, tables, colour codes, component markings and datasheet lookup in one place.
Examples tab with a featured circuit and topics
Electricity map with connected topics
And more

Everything a workbench needs.

Thoughtful tools that make Electryx at home on every Apple device you own.

Real components

Batteries, AC, pulse and modulated sources, resistors, capacitors, inductors, transformers, relays, diodes, LEDs, BJTs, MOSFETs, op-amps, logic gates and displays.

SPICE-style files

Open and save circuits as .cir netlists, so your work stays readable and portable.

Share with a QR code

Hand a circuit to a classmate in seconds, or export it as a PNG image or PDF.

iCloud sync

Your library follows you between iPhone, iPad and Mac automatically.

Made for Mac too

A three-column workspace with customizable keyboard shortcuts for every editing command.

Your circuits stay yours

The simulator runs locally and your designs are never uploaded to a calculation server. No sign-up and no ads.

Pricing

Free to build. Pro to go further.

Everything you need to learn and experiment is free. Electryx Pro adds advanced design tools.

Electryx

Free

  • Unlimited circuits and every component
  • Real-time and live AC simulation
  • Oscilloscope, captures and CSV export
  • All examples, lessons and the Electricity Map
  • Reference calculators and identification
  • Sharing, QR codes and iCloud sync

Electryx Pro Pro

Annual or lifetime

  • Parameter sweeps across component values
  • Detailed PDF reports of your circuits
  • 555 timer, transistor bias, gate driver and Zener designers
  • Inverse transformer design and AWG explorer
  • PCB, PV and advanced battery discharge tools
  • RF tools including Smith chart and matching

The annual plan includes a one-month free trial for eligible customers. Prices are shown in the App Store in your local currency.

FAQ

Questions, answered.

Which devices does Electryx run on?

iPhone and iPad with iOS 17 or later, and Mac with macOS 14 or later. Circuits sync between them with iCloud.

Do I need an account or an internet connection?

No account is needed, and circuits simulate on your device without a connection. A few reference tools, such as datasheet lookup, use the internet when you open them, and iCloud sync uses your own Apple account.

How accurate is the simulation?

Electryx uses a SPICE-style solver tuned for real-time interaction, which makes it great for learning and quick experiments. Its device models are educational and are not manufacturer model cards, so verify critical designs with a full simulator and real measurements.

Can I open SPICE files?

Electryx reads and writes .cir netlists for the components it supports, so circuits stay portable and human-readable.

What do I get with Electryx Pro?

Advanced design tools such as parameter sweeps, PDF reports, 555 and transistor designers, transformer and wire tools, and most RF tools. Choose an annual subscription or a one-time lifetime purchase — both unlock the same features.

Is there a web version?

Not at the moment. Electryx is a native app for iPhone, iPad and Mac.

Start building circuits.

Electryx is coming soon to the App Store for iPhone, iPad and Mac.

Coming soon to theApp Store