PROTO - circuit simulator
9.0 1K+
v1.51.0 by PROTO
About PROTO
PROTO (Package Name: com.proto.circuitsimulator) is developed by PROTO and the latest version of PROTO - circuit simulator 1.51.0 was updated on September 15, 2026. PROTO - circuit simulator is in the category of Education. You can check all apps from the developer of PROTO - circuit simulator and find 158 alternative apps to PROTO - circuit simulator on Android. Currently this app is for free. This app can be downloaded on Android 6.0+ on APKFab or Google Play. All APK/XAPK files on APKFab.com are original and 100% safe with fast download.
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 ⚡
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!
ℹ️ You can report an issue or make component request at Github
👉 Features:
✅ Animations of voltage values and current flows
✅ Adjusts circuit parameters (like voltage, current and other)
✅ Four-channel oscilloscope
✅ Single play/pause button to control simulation
✅ Copy electronic components
✅ Learn about electronic circuits by examples in app
✅ Share circuit with friends
✅ Themes (Dark, Light, Ocean, Solarized)
✅ PNG, JPG, PDF circuit export
✅ Export workspace
✅ Video tutorials about electronics
🔥 Arduino support in future
👉 Components:
+ DC, AC, Square, Trinagle, Sawtooth, Pulse, Noise voltage source
+ Current source
+ Resistor
+ Potentiometer
+ Capacitor
+ Polarized capacitor
+ Inductor
+ Transformer
+ Diode (rectifying diode, LED, Zener, Schottky)
+ Transistor (NPN, PNP, N and P channel Mosfet)
+ Switches (SPST, Relay)
+ Bulb
+ Operational amplifier
+ Timer 555 (NE555)
+ Digital Gates (AND, NAND, OR, XOR, NOR, NXOR, Inverter)
+ Voltmeter
+ Ammeter
+ Fuse
+ Photoresistor (uses phone light sensor)
+ Analog-to-digital converter (ADC)
+ Accelerometer (uses phone accelerometer sensor)
+ FM source
+ Logic Input
+ Memristor
+ Logic output
+ Probe
+ Voltage rail
👉 Analog Pack:
+ Tunnel diode
+ Varactor
+ NTC Thermistor
+ Center tapped transformer
+ Schmitt trigger
+ Schmitt trigger (inverting)
+ Solar cell
+ TRIAC
+ DIAC
+ Thyristor
+ Triode
+ Darlington NPN
+ Darlington PNP
+ Analog SPST
+ Analog SPDT
Digital Pack:
+ Adder
+ Counter
+ Latch
+ PISO Register
+ SIPO Register
+ Seven segment decoder
+ Sequence generator
+ D Flip-flop
+ T Flip-flop
+ JK Flip-flop
+ Multiplexer
+ Demultiplexer
+ Voltage controlled current source (VCCS)
+ Voltage controlled voltage source (VCVS)
+ Current controlled current source (CCCS)
+ Current controlled voltage source (CCVS)
+ Optocoupler
👉 Misc Pack:
+ Wobbulator
+ AM Source
+ SPDT Switch
+ Digital to analog converter (DAC)
+ Antenna
+ Spark gap
+ LED Bar
+ 7 segment LED
+ RGB LED
+ Ohmmeter
+ Audio input
+ Microphone
+ Device battery
+ DC Motor
+ 14 segment LED
+ Diode bridge
+ Crystal
+ Voltage regulators (78xx family)
+ TL431
+ Buzzer
+ Frequency meter
👉 JavaScrip Pack:
+ Write code
+ JavaScript interpreter (ES2020 class)
+ Access to IC inputs in code
+ Access to IC outputs in code
+ Four custom ICs
👉 7400 TTL Pack:
+ 7404 - hex inverter
+ 7410 - triple 3-input NAND Gate
+ 7414 - hex Schmitt-trigger inverter
+ 7432 - quadruple 2-input OR gate
+ 7440 - dual 4-input NAND buffer
+ 7485 - 4-bit magnitude comparator
+ 7493 - binary counter
+ 744075 - triple 3-input OR gate
+ 741G32 - single 2-input OR gate
+ 741G86 - single 2-input XOR gate
👉 4000 CMOS Pack:
+ 4000 - dual 3-input NOR gate and inverter.
+ 4001 - quad 2-input NOR gate.
+ 4002 - dual 4-input NOR gate.
+ 4011 - quad 2-input NAND gate.
+ 4016 - quad bilateral switch.
+ 4017 - 5-stage Johnson decade counter.
+ 4023 - triple 3-input NAND gate.
+ 4025 - triple 3-input NOR gate.
+ 4081 - quad 2-input AND gate.
+ 4511 - BCD to 7-segment decoder.
👉 Sensors pack:
+ Pressure
+ Gyroscope
+ Light
+ Magnetic field
+ Proximity
+ Temperature
+ Humidity
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!
ℹ️ You can report an issue or make component request at Github
👉 Features:
✅ Animations of voltage values and current flows
✅ Adjusts circuit parameters (like voltage, current and other)
✅ Four-channel oscilloscope
✅ Single play/pause button to control simulation
✅ Copy electronic components
✅ Learn about electronic circuits by examples in app
✅ Share circuit with friends
✅ Themes (Dark, Light, Ocean, Solarized)
✅ PNG, JPG, PDF circuit export
✅ Export workspace
✅ Video tutorials about electronics
🔥 Arduino support in future
👉 Components:
+ DC, AC, Square, Trinagle, Sawtooth, Pulse, Noise voltage source
+ Current source
+ Resistor
+ Potentiometer
+ Capacitor
+ Polarized capacitor
+ Inductor
+ Transformer
+ Diode (rectifying diode, LED, Zener, Schottky)
+ Transistor (NPN, PNP, N and P channel Mosfet)
+ Switches (SPST, Relay)
+ Bulb
+ Operational amplifier
+ Timer 555 (NE555)
+ Digital Gates (AND, NAND, OR, XOR, NOR, NXOR, Inverter)
+ Voltmeter
+ Ammeter
+ Fuse
+ Photoresistor (uses phone light sensor)
+ Analog-to-digital converter (ADC)
+ Accelerometer (uses phone accelerometer sensor)
+ FM source
+ Logic Input
+ Memristor
+ Logic output
+ Probe
+ Voltage rail
👉 Analog Pack:
+ Tunnel diode
+ Varactor
+ NTC Thermistor
+ Center tapped transformer
+ Schmitt trigger
+ Schmitt trigger (inverting)
+ Solar cell
+ TRIAC
+ DIAC
+ Thyristor
+ Triode
+ Darlington NPN
+ Darlington PNP
+ Analog SPST
+ Analog SPDT
Digital Pack:
+ Adder
+ Counter
+ Latch
+ PISO Register
+ SIPO Register
+ Seven segment decoder
+ Sequence generator
+ D Flip-flop
+ T Flip-flop
+ JK Flip-flop
+ Multiplexer
+ Demultiplexer
+ Voltage controlled current source (VCCS)
+ Voltage controlled voltage source (VCVS)
+ Current controlled current source (CCCS)
+ Current controlled voltage source (CCVS)
+ Optocoupler
👉 Misc Pack:
+ Wobbulator
+ AM Source
+ SPDT Switch
+ Digital to analog converter (DAC)
+ Antenna
+ Spark gap
+ LED Bar
+ 7 segment LED
+ RGB LED
+ Ohmmeter
+ Audio input
+ Microphone
+ Device battery
+ DC Motor
+ 14 segment LED
+ Diode bridge
+ Crystal
+ Voltage regulators (78xx family)
+ TL431
+ Buzzer
+ Frequency meter
👉 JavaScrip Pack:
+ Write code
+ JavaScript interpreter (ES2020 class)
+ Access to IC inputs in code
+ Access to IC outputs in code
+ Four custom ICs
👉 7400 TTL Pack:
+ 7404 - hex inverter
+ 7410 - triple 3-input NAND Gate
+ 7414 - hex Schmitt-trigger inverter
+ 7432 - quadruple 2-input OR gate
+ 7440 - dual 4-input NAND buffer
+ 7485 - 4-bit magnitude comparator
+ 7493 - binary counter
+ 744075 - triple 3-input OR gate
+ 741G32 - single 2-input OR gate
+ 741G86 - single 2-input XOR gate
👉 4000 CMOS Pack:
+ 4000 - dual 3-input NOR gate and inverter.
+ 4001 - quad 2-input NOR gate.
+ 4002 - dual 4-input NOR gate.
+ 4011 - quad 2-input NAND gate.
+ 4016 - quad bilateral switch.
+ 4017 - 5-stage Johnson decade counter.
+ 4023 - triple 3-input NAND gate.
+ 4025 - triple 3-input NOR gate.
+ 4081 - quad 2-input AND gate.
+ 4511 - BCD to 7-segment decoder.
👉 Sensors pack:
+ Pressure
+ Gyroscope
+ Light
+ Magnetic field
+ Proximity
+ Temperature
+ Humidity
PROTO 1.51.0 Update
• New CMOS logic ICs: 4008 adder, 4024 counter, 4027 flip-flop, 4077 XNOR• New in-app datasheets for TTL and CMOS logic ICs
• New Screen margin setting for devices with rounded corners
• Bug fixes and stability improvements
Read More
PROTO Features
Related Videos
PROTO - circuit simulator
Previous Versions
More
Variant
Arch
Version
DPI
97
September 14, 2026
PROTO - circuit simulator
1.51.0
(97)
Architecture: arm64-v8a
Screen DPI: nodpi
SHA1: 8bb99896257613010e673d2a72e1374e64efb802
Base APK: com.proto.circuitsimulator.apk
Split APKs: config.arm64_v8a, config.mdpi
Size: 23.5 MB
What's New:
• New CMOS logic ICs: 4008 adder, 4024 counter, 4027 flip-flop, 4077 XNOR
• New in-app datasheets for TTL and CMOS logic ICs
• New Screen margin setting for devices with rounded corners
• Bug fixes and stability improvements
• New in-app datasheets for TTL and CMOS logic ICs
• New Screen margin setting for devices with rounded corners
• Bug fixes and stability improvements
arm64-v8a
nodpi
97
September 15, 2026
PROTO - circuit simulator
1.51.0
(97)
Requires Android: Android 6.0+
Architecture: arm64-v8a
Screen DPI: nodpi
SHA1: b0f8c0183058d799219ab08669c08fc410ec21d3
Base APK: com.proto.circuitsimulator.apk
Split APKs: config.arm64_v8a, config.xxhdpi
Size: 19.1 MB
What's New:
• New CMOS logic ICs: 4008 adder, 4024 counter, 4027 flip-flop, 4077 XNOR
• New in-app datasheets for TTL and CMOS logic ICs
• New Screen margin setting for devices with rounded corners
• Bug fixes and stability improvements
• New in-app datasheets for TTL and CMOS logic ICs
• New Screen margin setting for devices with rounded corners
• Bug fixes and stability improvements
arm64-v8a
Android 6.0+
nodpi
97
September 15, 2026
PROTO - circuit simulator
1.51.0
(97)
Requires Android: Android 6.0+
Architecture: armeabi-v7a
Screen DPI: nodpi
SHA1: 44de0d20a181c7ef2fbe502866b6fb68688c75c7
Base APK: com.proto.circuitsimulator.apk
Split APKs: config.armeabi_v7a, config.xhdpi
Size: 17.44 MB
What's New:
• New CMOS logic ICs: 4008 adder, 4024 counter, 4027 flip-flop, 4077 XNOR
• New in-app datasheets for TTL and CMOS logic ICs
• New Screen margin setting for devices with rounded corners
• Bug fixes and stability improvements
• New in-app datasheets for TTL and CMOS logic ICs
• New Screen margin setting for devices with rounded corners
• Bug fixes and stability improvements
armeabi-v7a
Android 6.0+
nodpi
Variant
Arch
Version
DPI
96
August 10, 2026
PROTO - circuit simulator
1.50.0
(96)
Requires Android: Android 6.0+
Architecture: arm64-v8a
Screen DPI: nodpi
SHA1: a9b37fa8f9a44dbaec61e550690ac3617dabc4fd
Base APK: com.proto.circuitsimulator.apk
Split APKs: config.arm64_v8a, config.xxhdpi
Size: 19.22 MB
What's New:
• New TTL logic ICs: 7400 (quad 2-input NAND) and 7408 (quad 2-input AND) gates
• New CMOS logic IC: 4069 hex inverter
• Fixed a freeze during the oscilloscope scope check
• Fixed a crash when opening circuits with an unknown component
• Android 17 support
• Bug fixes and stability improvements
• New CMOS logic IC: 4069 hex inverter
• Fixed a freeze during the oscilloscope scope check
• Fixed a crash when opening circuits with an unknown component
• Android 17 support
• Bug fixes and stability improvements
arm64-v8a
Android 6.0+
nodpi
96
August 12, 2026
PROTO - circuit simulator
1.50.0
(96)
Requires Android: Android 6.0+
Architecture: armeabi-v7a
Screen DPI: nodpi
SHA1: 7d1eddd2e85f617f6027bdd5e52f14e8875ce610
Base APK: com.proto.circuitsimulator.apk
Split APKs: config.armeabi_v7a, config.xhdpi
Size: 17.56 MB
What's New:
• New TTL logic ICs: 7400 (quad 2-input NAND) and 7408 (quad 2-input AND) gates
• New CMOS logic IC: 4069 hex inverter
• Fixed a freeze during the oscilloscope scope check
• Fixed a crash when opening circuits with an unknown component
• Android 17 support
• Bug fixes and stability improvements
• New CMOS logic IC: 4069 hex inverter
• Fixed a freeze during the oscilloscope scope check
• Fixed a crash when opening circuits with an unknown component
• Android 17 support
• Bug fixes and stability improvements
armeabi-v7a
Android 6.0+
nodpi
Variant
Arch
Version
DPI
95
June 28, 2026
PROTO - circuit simulator
1.49.1
(95)
Architecture: arm64-v8a
Screen DPI: nodpi
SHA1: 7cc5b5787e87dc5fe0747e517002accdea41d3c8
Base APK: com.proto.circuitsimulator.apk
Split APKs: config.arm64_v8a, config.xxhdpi
Size: 18.96 MB
What's New:
• Move and drag multiple components at once
• Easier wiring with improved terminal selection
• Smoother zoom in/out
• New examples: comparator and XOR gate
• Android 16 support
• Bug fixes and stability improvements
• Fix slow simulation start (1.49.1)
• Easier wiring with improved terminal selection
• Smoother zoom in/out
• New examples: comparator and XOR gate
• Android 16 support
• Bug fixes and stability improvements
• Fix slow simulation start (1.49.1)
arm64-v8a
nodpi
95
June 29, 2026
PROTO - circuit simulator
1.49.1
(95)
Requires Android: Android 6.0+
Architecture: armeabi-v7a
Screen DPI: nodpi
SHA1: eef9f5818b95b65f28f3adb0f6fca5d590fb25f7
Base APK: com.proto.circuitsimulator.apk
Split APKs: config.armeabi_v7a, config.xhdpi
Size: 17.31 MB
What's New:
• Move and drag multiple components at once
• Easier wiring with improved terminal selection
• Smoother zoom in/out
• New examples: comparator and XOR gate
• Android 16 support
• Bug fixes and stability improvements
• Fix slow simulation start (1.49.1)
• Easier wiring with improved terminal selection
• Smoother zoom in/out
• New examples: comparator and XOR gate
• Android 16 support
• Bug fixes and stability improvements
• Fix slow simulation start (1.49.1)
armeabi-v7a
Android 6.0+
nodpi
Variant
Arch
Version
DPI
94
June 10, 2026
PROTO - circuit simulator
1.49.0
(94)
Requires Android: Android 6.0+
Architecture: arm64-v8a
Screen DPI: nodpi
SHA1: 589d670d2ee5705da8020a12ec1b60338c90b241
Base APK: com.proto.circuitsimulator.apk
Split APKs: config.arm64_v8a, config.xxxhdpi
Size: 18.95 MB
What's New:
• Move and drag multiple components at once
• Easier wiring with improved terminal selection
• Smoother zoom in/out
• New examples: comparator and XOR gate
• Android 16 support
• Bug fixes and stability improvements
• Easier wiring with improved terminal selection
• Smoother zoom in/out
• New examples: comparator and XOR gate
• Android 16 support
• Bug fixes and stability improvements
arm64-v8a
Android 6.0+
nodpi
94
June 19, 2026
PROTO - circuit simulator
1.49.0
(94)
Requires Android: Android 6.0+
Architecture: armeabi-v7a
Screen DPI: nodpi
SHA1: adb1af1215ff0f9e8c596c391095dcbe3f3941b3
Base APK: com.proto.circuitsimulator.apk
Split APKs: config.armeabi_v7a, config.xhdpi
Size: 17.31 MB
What's New:
• Move and drag multiple components at once
• Easier wiring with improved terminal selection
• Smoother zoom in/out
• New examples: comparator and XOR gate
• Android 16 support
• Bug fixes and stability improvements
• Easier wiring with improved terminal selection
• Smoother zoom in/out
• New examples: comparator and XOR gate
• Android 16 support
• Bug fixes and stability improvements
armeabi-v7a
Android 6.0+
nodpi
94
June 26, 2026
PROTO - circuit simulator
1.49.0
(94)
Requires Android: Android 6.0+
Architecture: arm64-v8a
Screen DPI: nodpi
SHA1: 4ed1965d3c58cf3dd98282f6fcf73311849ac211
Base APK: com.proto.circuitsimulator.apk
Split APKs: config.arm64_v8a, config.xxhdpi
Size: 18.95 MB
What's New:
• Move and drag multiple components at once
• Easier wiring with improved terminal selection
• Smoother zoom in/out
• New examples: comparator and XOR gate
• Android 16 support
• Bug fixes and stability improvements
• Easier wiring with improved terminal selection
• Smoother zoom in/out
• New examples: comparator and XOR gate
• Android 16 support
• Bug fixes and stability improvements
arm64-v8a
Android 6.0+
nodpi
More Information
Package Name:
Update Date:
2026-09-15
Latest Version:
1.51.0
Need Update:
Available on:
Requirements:
Android 6.0+
Report:
Safe to Download
APKFab.com and the download link of this app are 100% safe. All download links of apps listed on APKFab.com are from Google Play Store or submitted by users. For the app from Google Play Store, APKFab.com won't modify it in any way. For the app submitted by users, APKFab.com will verify its APK signature safety before release it on our website.