Recommended for you
Version
v1.52.0
Latest
Size
16.8 MB
Total
Category
education
Developer
PROTO
Views
354
Updated
2026-10-31
Screenshots
PROTO Mod is a circuit simulator that lets you build electronic circuits and observe their behavior in real time. It is designed for trying circuit ideas without handling physical components, while giving you visible feedback as current moves and LEDs respond.
Instead of treating a circuit as a static diagram, PROTO Mod keeps the simulation running while you inspect signals and adjust component values. This makes it useful for learning electrical principles through changes you can see directly in the circuit.
Real-Time Circuit Simulation
PROTO Mod simulates current flow with animated movement, helping you follow its direction through a circuit. You can use this visual feedback to see how parts of a design are connected and how the circuit responds while it runs.
The built-in four-channel oscilloscope lets you monitor several signals at the same time. It can display pulse signals as well as waveform types such as sine and sawtooth waves, which is useful when comparing different points in a circuit.
You can also change component values during a running simulation. This allows you to observe the result immediately instead of stopping the circuit before every adjustment.
Electronic Components and Digital Logic
PROTO Mod includes components for basic exercises and more involved circuit projects. Its digital logic selection includes common logic gates, flip-flops, NAND gates, and NOR gates, so you can work with digital circuit arrangements rather than only simple analog connections.
- Flip-flops can be used when creating digital systems such as counters.
- Logic gates support designs that include seven-segment decoders.
- The component library includes 7400 TTL and 4000 CMOS IC families.
- Version 1.52.0 adds the 4518 dual BCD counter and the 4520 dual 4-bit binary counter.
Phone Sensors and Custom Scripts
PROTO Mod can use your phone's light sensor, accelerometer, and gyroscope as circuit inputs. This lets a simulation respond to sensor data from the device rather than relying only on fixed values.
For custom IC behavior, you can write JavaScript directly in the app. The current version also adds a Script IC with 32 inputs and 32 outputs, giving you a larger interface for scripted circuit logic.
Recent Updates
Version 1.52.0 adds new CMOS logic ICs and the 32-input, 32-output Script IC. It also adds French availability, along with bug fixes and stability improvements.
MOD Features
Premium Unlocked
- Premium Unlocked
What’s New
v1.52.0• New CMOS logic ICs: 4518 (dual BCD counter) and 4520 (dual 4-bit binary counter)
• New Script IC with 32 inputs and 32 outputs
• PROTO is now available in French
• Bug fixes and stability improvements
Release notes published by the developer on Google Play.View on Google PlayRetrieved 2026-10-31
Verified package facts
These values are read from the installable file and cross-checked against the app's Google Play listing. JoJoy does not run antivirus scans and does not test each build on physical devices.
Data Safety
Published by PROTO’s developer on Google Play. It describes what the official app collects and shares, reproduced here so you can review it before installing.
- Data is encrypted in transitYour data is transferred over a secure connection
- Data can’t be deletedThe developer doesn’t provide a way for you to request that your data be deleted
Data this app may collect
- App activity
- App interactionsFraud prevention, security, and compliance · Analytics
- App info and performance
- Crash logsFraud prevention, security, and compliance · Analytics
- DiagnosticsFraud prevention, security, and compliance · Analytics
- Device or other IDs
- Device or other IDsFraud prevention, security, and compliance
- Financial info
- Purchase historyFraud prevention, security, and compliance · App functionality · Analytics
View on Google PlayRetrieved 2026-10-31
Mod Review
This build suits learners and circuit hobbyists who want to change component values while a simulation is still running and watch the result immediately. It also fits people working with digital logic, since it includes gates, flip-flops, TTL, and CMOS IC families. People who are cautious about collection of app interactions, crash logs, diagnostics, device IDs, and purchase history may prefer to consider that data handling before installing. It is less suitable when you need a physical lab setup rather than simulated current flow and signals.
What the mod changes
This build carries the Premium Unlocked label. PROTO Mod's circuit simulation, oscilloscope, logic components, sensor inputs, and JavaScript support remain the product's core tools. The label identifies the modified build separately from the Google Play version. Check the build version against the current official release before relying on recently added ICs.
Pros
- Animated current flow helps you follow current direction through a circuit while the simulation runs.
- The four-channel oscilloscope lets you compare several signals, including sine and sawtooth waveforms, at once.
- Live parameter adjustment makes it easier to observe how changing a component affects the active circuit.
- Phone light, acceleration, and gyroscope sensors can supply inputs for sensor-driven circuit experiments.
Cons
- The app collects interaction data, crash logs, diagnostics, device identifiers, and purchase history.
- Android 7.0 or later is the minimum installation requirement for this 16.8 MB build.
- Version matching matters because 1.52.0 adds the 4518, 4520, and Script IC components.
Verdict
Install it when you want a mobile circuit simulator with visible current, signal monitoring, digital logic parts, and custom scripting. Before installing, check that this build matches version 1.52.0 if you need the newly added CMOS counters or Script IC.
FAQ
What can I build in PROTO?
PROTO lets you simulate electronic circuits in real time. Its component options include logic gates, flip-flops, 7400 TTL ICs, 4000 CMOS ICs, and parts for systems such as counters and seven-segment decoders.
How does the oscilloscope work in PROTO?
PROTO includes a four-channel oscilloscope for monitoring multiple signals at the same time. It can show waveform types including sine and sawtooth waves.
What is new in PROTO version 1.52.0?
Version 1.52.0 adds the 4518 dual BCD counter and 4520 dual 4-bit binary counter. It also adds a Script IC with 32 inputs and 32 outputs, French availability, bug fixes, and stability improvements.
What does Premium Unlocked mean for this PROTO build?
Premium Unlocked is the label used for this modified build. The build still uses PROTO's real-time circuit simulation, component library, phone sensor inputs, and JavaScript support.
What Android version is required for PROTO?
PROTO requires Android 7.0 or later as a minimum requirement. The listed file size is 16.8 MB.
Version History
- v1.52.0Current16.8 MBAndroid 7.0 +Download Mod
- v1.51.016.6 MBAndroid 6.0 +Download Mod