# iCircuit

> Real-time circuit simulator

Canonical page: [https://chrome-stats.com/d/id383359044](https://chrome-stats.com/d/id383359044)

## Overview

- **ID:** `id383359044`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Krueger Systems, Inc.
- **Category:** Productivity
- **Rating:** 3.80 / 5 (134 ratings)
- **Version:** 1.15.2
- **Last updated:** 2026-03-18
- **First published:** 2010-07-29
- **Size:** 126 MB
- **Data as of:** 2026-09-19
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/icircuit/id383359044)
- **Website:** [https://icircuitapp.com](https://icircuitapp.com/)
- **Privacy policy:** [https://icircuitapp.com/privacy-policy](https://icircuitapp.com/privacy-policy)

## Description

iCircuit is the premier iPhone and iPad app for designing, simulating, and learning analog and digital electronics. Its real-time, always-on analysis keeps circuits powered and live, so you can explore designs without pausing to measure or export reports.

With a library of 300+ components—including programmable Arduinos (Uno, Nano, Mega, ESP8266, ESP32), PIC microcontrollers, and 60 4000/7400-series digital ICs—plus built-in test gear (multimeter, oscilloscope, gauges, signal generators), you can prototype and verify ideas quickly. Create sub-circuits, share custom elements via the Gallery, and even enjoy audio simulation. iCircuit Pro adds more components and libraries and is optional. Ideal for students, hobbyists, and engineers validating designs.

## Rankings

- #130,722 — Overall

## Review summary

iCircuit is praised for its depth and usefulness for learning and on-the-go prototyping, with solid core functionality. However, it is repeatedly flagged for severe bugs, unstable UX, unreliable undo/save, inconsistent controls, poor pencil support, and a price/subscription model that gates features. Overall, it remains a strong concept for mobile circuit work but is hampered by reliability and pricing concerns.

### Pros

- Powerful circuit simulation with many features
- Great for learning and rapid prototyping on the go
- Useful for education and tinkering; helps quick testing
- Core functionality is present and usable for mobile circuit work
- Perceived as user-friendly and handy for on-device work

### Cons

- Widespread bugs and instability affecting core workflow
- Unreliable undo/redo and saving leading to lost work
- Inconsistent UI/UX: erratic menus, zoom, scroll, and labeling
- Poor Apple Pencil support and touch input issues
- Subscription model and high price gate features or content

## Similar extensions and apps

- [iCircuit 3D](https://chrome-stats.com/d/id1539977373) — 4.10 / 5
- [Singular: Circuit Simulator](https://chrome-stats.com/d/id6760304619) — 1.00 / 5
- [EveryCircuit](https://chrome-stats.com/d/id797157761) — 3.00 / 5
- [Circuit Simulator - VoltSim](https://chrome-stats.com/d/id6736870364) — 4.70 / 5
- [Electro Sim](https://chrome-stats.com/d/id6758049588)
- [Circuit Design](https://chrome-stats.com/d/id6776538242)
- [Electronics Circuit Simulator](https://chrome-stats.com/d/id6762292048)
- [Logic Circuits Simulator](https://chrome-stats.com/d/id6748374538)
- [CircuitLab Designer](https://chrome-stats.com/d/id6758009957) — 1.00 / 5
- [DigitalLogicSimMobile](https://chrome-stats.com/d/id6751604846) — 3.40 / 5
- [LogicGate: Circuit Simulator](https://chrome-stats.com/d/id6760141077)
- [ElectroSim: Electrical Wiring](https://chrome-stats.com/d/id6752586509) — 4.40 / 5

---

Source: [Chrome-Stats](https://chrome-stats.com/d/id383359044)