What it is
iCircuit is an electronic circuit simulator and designer for students, hobbyists, and engineers. It handles analog and digital circuits with real-time analysis that runs continuously as a design changes. Users add elements, connect them, and set component properties; the maker lists more than 30 elements, including sources, motors, LEDs, ADCs and DACs, logic gates, flip-flops, and 7400-series parts. A built-in multimeter probes voltage and current, while the oscilloscope tracks multiple signals over time. Users can create subcircuits to introduce new elements and organize designs into components. The app is available for Android, iOS, macOS, and Windows. Speakers, microphones, and buzzers are unavailable on Windows. Circuit files can be shared by email or saved in CIR format for opening in other iCircuit versions. The core app costs 12.99 USD per once. Optional Pro plans add extra components and cost 1.99 USD per month or 14.99 USD per year; Pro is not required for core simulation or everyday circuit design.
Who it suits. iCircuit suits students, hobbyists, and engineers who want to design and simulate analog or digital circuits. It is available across mobile and desktop platforms, with some listed component limitations on Windows.
Good
- Simulates analog and digital circuits in real time.
- Built-in multimeter probes voltage and current.
- Oscilloscope tracks multiple signals over time.
- Subcircuits let users create and organize new elements.
- Circuit files can be shared by email or saved in CIR format.
Watch for
- Core app costs 12.99 USD per once.
- Speakers, microphones, and buzzers are unavailable on Windows.
- No free plan is available.
- Support cannot guarantee a reply to every message.
Verdict
iCircuit combines circuit design with continuous analog and digital simulation, plus measurement tools and subcircuits. The core app is a paid purchase, while optional Pro plans add components and are not needed for everyday design or simulation.
Plans and prices
| Plan | Price | Billed |
|---|---|---|
| iCircuit Pro (Monthly) | $1.99 a month | — |
| iCircuit | $12.99 once | — |
| iCircuit Pro (Yearly) | $14.99 a year | — |
From iCircuit's own pricing page, checked 8 Oct 2026. Every plan
What the maker publishes
- Circuit building
- Users add elements, connect them, and set component properties, with more than 30 elements described on the maker’s homepage. source
- Company
- The product page identifies Krueger Systems, Inc. as the maker. source
- Components
- The homepage lists sources, motors, LEDs, ADCs and DACs, logic gates, flip-flops, 7400-series parts, and an antenna with simulated AM and FM signals. source
- Custom circuits
- Users can create subcircuits to introduce new elements and componentize designs. source
- Measurement
- A built-in multimeter probes voltages and currents, and the oscilloscope tracks multiple signals over time. source
- Optional Pro
- The App Store listing says iCircuit Pro is optional, adds extra components, and is not required for core simulation or everyday circuit design. source
- Privacy
- The privacy policy says the app may collect anonymous analytics and crash reporting and identifies iCloud as a third-party service. source
- Product
- iCircuit is an electronic circuit simulator and designer for students, hobbyists, and engineers. source
- Sharing
- The user manual describes sharing circuit files by email and saving them in CIR format for opening in other iCircuit versions. source
- Simulation
- Its simulation engine handles analog and digital circuits with real-time, always-on analysis. source
- Support
- Support accepts suggestions through its UserVoice page and private feedback by email, but says it cannot guarantee a reply to each message. source
- Supported devices
- The maker lists iPad and iPhone, macOS, Microsoft Store, and Android phones and tablets. source
- Windows limit
- Speakers, microphones, and buzzers are listed as unavailable on Windows. source