PROTO is a real-time circuit simulator that lets you build, simulate, and learn electronics with a rich component library and a four-channel oscilloscope. It supports real-time parameter tuning, circuit export, and sharing, making it a strong educational tool for Arduino, Raspberry Pi, and ESP32 projects. Not ranked in any top list, PROTO has garnered a broad audience with a 4.63 average rating from 12,294 reviews and over 1,000,000+ total downloads.
Pros & Cons
Real-time simulations with a four-channel oscilloscope
Extensive component library across Analog, Digital, and Misc packs
Export and share circuits as PNG/JPG/PDF and print/workspace export
Supports Arduino, Raspberry Pi, and ESP32 workflows for hands-on projects
Less emphasis on calculator-style features and pinout guides compared to some competitors
Not ranked in any top list, which may affect discoverability for some users
Some competitors foreground broader design tools (e.g., design-oriented electronics features) that PROTO does not explicitly spotlight
About PROTO - circuit simulator
PROTO - circuit simulator is an education app developed by PROTO.
Download Statistics
PROTO - circuit simulator has been downloaded 3.8 million times. In the last 30 days, the app was downloaded 32 thousand times.
User Ratings
PROTO - circuit simulator is rated 4.50 out of 5 stars. The rating is based on 13 thousand ratings.
App Information
PROTO - circuit simulator is FREE to download. The APK download size is 19.22 MB. The latest version available is 1.51.0. The last update was on September 10, 2026.
Technical Requirements
The app has a content rating of Everyone. The app has been available on Google Play since May 2021.
Description
Are you looking for tools like Multisim, SPICE, LTspice, Proteus, Altium or PhET simulations? That's great! PROTO is an real time electronic circuit simulator which means you are able to setup a circuit with various components and simulate behaviour of the electronic circuit β‘ During simulation you can check voltages, currents and many other variables. Check signals on multichannel oscilioscope and tune your circuit in real time! Our app can greatly help with your Raspberry Pi, Arduino or ESP32 project. You can also use PROTO as logic circuit simulator and perform digital electronic analysis!
βΉοΈ You can report an issue or make component request at Github
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Hello Proto Electronic Simulator Team, I can't pay in your app using DITO Telco Money. When I select payment, DITO Pay doesn't show up / it's not accepted. Country: Philippines Payment Method: DITO Pay / DITO Telco Money Device: Android Can you please add DITO Pay as a payment option? Many Filipino users use DITO now. Thank you!
β β β β β Pedro RiosΒ· May 17, 2026
App is great!! 2 features I would really like are a much further zooming out, and the ability to toggle all the labels for the individual components on and off at once.
β β β β β Dodge ThisΒ· Feb 4, 2026
This app has really helped me in circuit analysis, electrical systems, and analog. Just wish there was a way to add our own components, such as an n-channel JFET instead of a MOS FET. It would also be nice to have a variable DC or AC source and the ability to add in an oscilloscope or other devices. Another very useful tool would be transient analysis. Please do that!
β β β β β Cathy LaurelΒ· Sep 18, 2026
This is the best way to learn engineering, I can simulate circuits simultaneously, it's so fast and responsive, thank you!
β ββββKhan KhalidΒ· Mar 4, 2026
Extremely confusing interface and no lock layout options schematic become unstoppable even while pressing a switch
β β βββg kΒ· Aug 19, 2026
The ui is totally bandaged it makes trying to select nodes and make connections extremely difficult and frustrating.
β ββββDavid DavidΒ· Sep 10, 2026
Good?? Looks great if I could figure out on my own how to use it. Apparently I'm not smart enough. Some instructions on how to do basic things like drawing connections would be nice.
This program is good but have a littel problems such as a conection tow device and ... in order to need the refresh
Google Play Rankings for PROTO - circuit simulator
This app is not ranked
Technologies used by PROTO - circuit simulator
9 permissionsΒ·22 libraries
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Trust & Safety: Safety review: The app requests standard network access (INTERNET, ACCESS_NETWORK_STATE), ad identifiers (AD_ID) and in-app billing, along with RECORD_AUDIO and WAKE_LOCK. No location permissions are requested. It relies on Firebase and other libraries, and presents a transparent set of permissions; users should review the privacy policy and consent for data usage as with most freemium educational apps.
Frequently asked questions about PROTO - circuit simulator
Is PROTO - circuit simulator free?
Yes. PROTO - circuit simulator is free to download from Google Play.
Is PROTO - circuit simulator still available?
Yes. PROTO - circuit simulator is on Google Play, and the last update we saw was on September 10, 2026.
Does PROTO - circuit simulator contain ads?
No. Google Play does not list PROTO - circuit simulator as containing ads.
How large is the PROTO - circuit simulator APK?
The PROTO - circuit simulator APK is 19.22 MB.
Is PROTO - circuit simulator suitable for children?
Google Play rates the content of PROTO - circuit simulator as suitable for everyone.
How many times has PROTO - circuit simulator been downloaded?
Google Play lists 1,000,000+ downloads for PROTO - circuit simulator.
How do people rate PROTO - circuit simulator?
PROTO - circuit simulator scores 4.50 out of 5 stars, from 13,058 ratings on Google Play.
Who made PROTO - circuit simulator?
PROTO - circuit simulator was developed by PROTO. It is listed in the education category on Google Play.
What are the best alternatives to PROTO - circuit simulator?
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