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iCircuit
What it is
iCircuit is an electronic circuit simulator and design app for students, hobbyists, and engineers. It handles analog and digital circuits with real-time analysis that runs continuously. Users add elements, connect them, and adjust component properties; the maker’s homepage describes more than 30 elements. Listed parts include sources, motors, LEDs, ADCs and DACs, logic gates, flip-flops, 7400-series parts, and an antenna with simulated AM and FM signals. A built-in multimeter probes voltage and current, while an oscilloscope tracks multiple signals over time. Users can create subcircuits to add new elements and break designs into components. The app supports schematic capture, advanced electrical simulation, and standards libraries. It runs on Android, iOS, macOS, and Windows, including iPhone and iPad as well as Android phones and tablets. Speakers, microphones, and buzzers are unavailable on Windows. Circuit files can be shared by email or saved in CIR format for use in other iCircuit versions. The core app costs $12.99, paid once. Optional Pro plans add extra components and are not required for core simulation or everyday circuit design.
For and against
For
- Simulates analog and digital circuits in real time.
- Includes a multimeter and multi-signal oscilloscope.
- Supports schematic capture and standards libraries.
- Subcircuits let users create new elements.
- Circuit files can be shared by email or saved in CIR format.
Against
- No free plan.
- Speakers, microphones, and buzzers are unavailable on Windows.
- Does not include panel design.
- Does not include MCAD integration.
The verdict
iCircuit combines schematic design and circuit simulation with measurement tools and a range of listed components. The Windows device limitations and absence of panel design and MCAD integration are worth noting.
Who it suits
iCircuit suits students, hobbyists, and engineers who want to design schematics and simulate analog or digital circuits. Its desktop and mobile platforms support users working across the listed operating systems.
Plans and prices
iCircuit Pro (Monthly)
Optional; adds extra components
Read 8 Oct 2026 · apps.apple.com
iCircuit
Core app purchase
Read 8 Oct 2026 · apps.apple.com
iCircuit Pro (Yearly)
Optional; adds extra components
Read 8 Oct 2026 · apps.apple.com
On the record
- Circuit building
- Users add elements, connect them, and set component properties, with more than 30 elements described on the maker’s homepage.icircuitapp.com · read 8 Oct 2026
- Company
- The product page identifies Krueger Systems, Inc. as the maker.icircuitapp.com · read 8 Oct 2026
- 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.icircuitapp.com · read 8 Oct 2026
- Custom circuits
- Users can create subcircuits to introduce new elements and componentize designs.icircuitapp.com · read 8 Oct 2026
- Measurement
- A built-in multimeter probes voltages and currents, and the oscilloscope tracks multiple signals over time.icircuitapp.com · read 8 Oct 2026
- 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.apps.apple.com · read 8 Oct 2026
- Privacy
- The privacy policy says the app may collect anonymous analytics and crash reporting and identifies iCloud as a third-party service.icircuitapp.com · read 8 Oct 2026
- Product
- iCircuit is an electronic circuit simulator and designer for students, hobbyists, and engineers.icircuitapp.com · read 8 Oct 2026
- Sharing
- The user manual describes sharing circuit files by email and saving them in CIR format for opening in other iCircuit versions.icircuitapp.com · read 8 Oct 2026
- Simulation
- Its simulation engine handles analog and digital circuits with real-time, always-on analysis.icircuitapp.com · read 8 Oct 2026
- Support
- Support accepts suggestions through its UserVoice page and private feedback by email, but says it cannot guarantee a reply to each message.icircuitapp.com · read 8 Oct 2026
- Supported devices
- The maker lists iPad and iPhone, macOS, Microsoft Store, and Android phones and tablets.icircuitapp.com · read 8 Oct 2026
- Windows limit
- Speakers, microphones, and buzzers are listed as unavailable on Windows.icircuitapp.com · read 8 Oct 2026