# PROTO - circuit simulator

> Build, simulate and learn about electronic circuits with PROTO circuit simulator

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

## Overview

- **ID:** `com.proto.circuitsimulator`
- **Platform:** Android
- **Type:** Android app
- **Status:** Available
- **Publisher:** PROTO
- **Category:** EDUCATION
- **Downloads:** 3,815,092
- **Rating:** 4.42 / 5 (13,964 ratings)
- **Version:** 1.50.0
- **Last updated:** 2026-09-11
- **First published:** 2021-10-25
- **Publisher country:** PL
- **Size:** 25 MB
- **Data as of:** 2026-10-09
- **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.proto.circuitsimulator)
- **Website:** [https://protosimulator.com/](https://protosimulator.com/)
- **Privacy policy:** [https://www.protosimulator.com/privacy-policy.html](https://www.protosimulator.com/privacy-policy.html)

## Description

**PROTO - Circuit Simulator** is a powerful, real-time electronic circuit simulation tool designed for learners, hobbyists, and professionals. It allows you to build, simulate, and analyze electronic circuits using a wide range of analog and digital components, supporting projects involving Raspberry Pi, Arduino, and ESP32.

The extension offers intuitive features including voltage and current animations, a four-channel oscilloscope, parameter adjustments, and multi-format export options (PNG, JPG, PDF). It supports simulation of logic circuits, digital gates, sensors, and complex ICs with an interface that facilitates easy component copying and circuit sharing. Additional packs provide even more components like analog devices, TTL and CMOS ICs, and sensors. Future updates promise Arduino support and video tutorials to enhance learning. PROTO is ideal for anyone wanting a comprehensive electronics simulator accessible directly in their browser.

## Rankings

- #29,653 — Overall
- #24 — component

## Permissions and access

### Permissions

- `android.permission.ACCESS_ADSERVICES_AD_ID`
- `android.permission.ACCESS_ADSERVICES_ATTRIBUTION`
- `android.permission.ACCESS_NETWORK_STATE`
- `android.permission.INTERNET`
- `android.permission.RECORD_AUDIO`
- `android.permission.WAKE_LOCK`
- `com.android.vending.BILLING`
- `com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE`
- `com.proto.circuitsimulator.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION`

## Review summary

Users praise PROTO for solid circuit simulation and clear component details, plus beginner-friendly design. Recurrent drawbacks are a confusing, hard-to-edit UI, missing essential tools like an oscilloscope, and features locked behind payments. Several reviews also note bugs and reliability concerns, plus access issues with purchased packs and perceived lack of maintenance. Overall, strong concept with notable usability and feature gaps.

### Pros

- Powerful circuit simulation and building capabilities.
- Clear details on each component.
- Beginner-friendly and great for learning.
- Easy to test simple circuit ideas with a limited free component set; nice design.
- Pleasant UX and design that feels comfortable to use.

### Cons

- Editing circuits and components is often cumbersome; parameters (e.g., transistor) can be hard to modify and the UI is confusing.
- Missing essential features and tools (notably an oscilloscope/CRO); plus many features are behind paywalls or priced high.
- Bugs and reliability concerns (some components behave unexpectedly) and reports of issues with purchased packs; concerns about maintenance/downsides being ignored.

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