PROTO - circuit simulator
9.2 1K+
v1.48.0 by PROTO
About PROTO
PROTO (Package Name: com.proto.circuitsimulator) is developed by PROTO and the latest version of PROTO - circuit simulator 1.48.0 was updated on March 22, 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 1.48.0 Update
> Add ability to print circuit directly from PROTO [Actions -> Print circuit]> Add ability to share circuit via Gmail, Whatsapp, Facebook and more [Actions -> Share circuit]
> Fix wrong TTL 7402 pinout: https://github.com/Proto-App/Proto-Android/issues/450
> Fix wrong zoom behavior: https://github.com/Proto-App/Proto-Android/issues/449
Read More
PROTO Features
Related Videos
PROTO - circuit simulator
Previous Versions
More
Variant
Arch
Version
DPI
93
March 26, 2026
PROTO - circuit simulator
1.48.0
(93)
Requires Android: Android 6.0+
Architecture: arm64-v8a
Screen DPI: nodpi
SHA1: 08785202eb1df1663a484f0abd56aae56266c4b9
Base APK: com.proto.circuitsimulator.apk
Split APKs: config.arm64_v8a, config.xxhdpi
Size: 22.98 MB
What's New:
> Add ability to print circuit directly from PROTO [Actions -> Print circuit]
> Add ability to share circuit via Gmail, Whatsapp, Facebook and more [Actions -> Share circuit]
> Fix wrong TTL 7402 pinout: https://github.com/Proto-App/Proto-Android/issues/450
> Fix wrong zoom behavior: https://github.com/Proto-App/Proto-Android/issues/449
> Add ability to share circuit via Gmail, Whatsapp, Facebook and more [Actions -> Share circuit]
> Fix wrong TTL 7402 pinout: https://github.com/Proto-App/Proto-Android/issues/450
> Fix wrong zoom behavior: https://github.com/Proto-App/Proto-Android/issues/449
arm64-v8a
Android 6.0+
nodpi
93
March 30, 2026
PROTO - circuit simulator
1.48.0
(93)
Requires Android: Android 6.0+
Architecture: armeabi-v7a
Screen DPI: nodpi
SHA1: 8a7cefb37ca11398b673b928b6a468cdbbe03c3a
Base APK: com.proto.circuitsimulator.apk
Split APKs: config.armeabi_v7a, config.xhdpi
Size: 19.99 MB
What's New:
> Add ability to print circuit directly from PROTO [Actions -> Print circuit]
> Add ability to share circuit via Gmail, Whatsapp, Facebook and more [Actions -> Share circuit]
> Fix wrong TTL 7402 pinout: https://github.com/Proto-App/Proto-Android/issues/450
> Fix wrong zoom behavior: https://github.com/Proto-App/Proto-Android/issues/449
> Add ability to share circuit via Gmail, Whatsapp, Facebook and more [Actions -> Share circuit]
> Fix wrong TTL 7402 pinout: https://github.com/Proto-App/Proto-Android/issues/450
> Fix wrong zoom behavior: https://github.com/Proto-App/Proto-Android/issues/449
armeabi-v7a
Android 6.0+
nodpi
Variant
Arch
Version
DPI
92
February 20, 2026
PROTO - circuit simulator
1.47.0
(92)
Requires Android: Android 6.0+
Architecture: arm64-v8a
Screen DPI: nodpi
SHA1: cd03ecb7114e7f9b2d4f88cc4b72354f164928d7
Base APK: com.proto.circuitsimulator.apk
Split APKs: config.arm64_v8a, config.xhdpi
Size: 23 MB
What's New:
> Unify Import/Export/Theme into Actions button.
> Add "Save as" option
> Add ability to rename circuit during simulation
> Add Changelog button to see PROTO releases history
> Add "Save as" option
> Add ability to rename circuit during simulation
> Add Changelog button to see PROTO releases history
arm64-v8a
Android 6.0+
nodpi
92
February 20, 2026
PROTO - circuit simulator
1.47.0
(92)
Requires Android: Android 6.0+
Architecture: armeabi-v7a
Screen DPI: nodpi
SHA1: 624935670be39c2f84de6f47acf237f254f90ebe
Base APK: com.proto.circuitsimulator.apk
Split APKs: config.armeabi_v7a, config.xhdpi
Size: 20.02 MB
What's New:
> Unify Import/Export/Theme into Actions button.
> Add "Save as" option
> Add ability to rename circuit during simulation
> Add Changelog button to see PROTO releases history
> Add "Save as" option
> Add ability to rename circuit during simulation
> Add Changelog button to see PROTO releases history
armeabi-v7a
Android 6.0+
nodpi
92
March 23, 2026
PROTO - circuit simulator
1.47.0
(92)
Requires Android: Android 6.0+
Architecture: arm64-v8a
Screen DPI: nodpi
SHA1: 4981cd0b2d4c32ea1f1bbe112860be4e4cff7392
Base APK: com.proto.circuitsimulator.apk
Split APKs: config.arm64_v8a, config.xxxhdpi
Size: 23.02 MB
What's New:
> Unify Import/Export/Theme into Actions button.
> Add "Save as" option
> Add ability to rename circuit during simulation
> Add Changelog button to see PROTO releases history
> Add "Save as" option
> Add ability to rename circuit during simulation
> Add Changelog button to see PROTO releases history
arm64-v8a
Android 6.0+
nodpi
Variant
Arch
Version
DPI
91
January 15, 2026
PROTO - circuit simulator
1.46.0
(91)
Requires Android: Android 6.0+
Architecture: arm64-v8a, armeabi-v7a
Screen DPI: nodpi
SHA1: 168d1522de59f25184233a4780909daf352d22f6
Base APK: com.proto.circuitsimulator.apk
Split APKs: config.arm64_v8a, config.armeabi_v7a, config.xhdpi, config.xxhdpi, config.xxxhdpi
Size: 20.37 MB
What's New:
> New component [MISC PACK]: AMS1117 voltage regulators:
- AMS1117-1.2
- AMS1117-1.5
- AMS1117-1.8
- AMS1117-2.5
- AMS1117-3.3
- AMS1117-5.0
> Wrong corners on Galaxy S23+ - https://github.com/Proto-App/Proto-Android/issues/439
- AMS1117-1.2
- AMS1117-1.5
- AMS1117-1.8
- AMS1117-2.5
- AMS1117-3.3
- AMS1117-5.0
> Wrong corners on Galaxy S23+ - https://github.com/Proto-App/Proto-Android/issues/439
arm64-v8a, armeabi-v7a
Android 6.0+
nodpi
91
January 16, 2026
PROTO - circuit simulator
1.46.0
(91)
Requires Android: Android 6.0+
Architecture: arm64-v8a
Screen DPI: nodpi
SHA1: 802569bd696b1adb9491752ce4481c585d32e8da
Base APK: com.proto.circuitsimulator.apk
Split APKs: config.arm64_v8a, config.xxxhdpi
Size: 22.82 MB
What's New:
> New component [MISC PACK]: AMS1117 voltage regulators:
- AMS1117-1.2
- AMS1117-1.5
- AMS1117-1.8
- AMS1117-2.5
- AMS1117-3.3
- AMS1117-5.0
> Wrong corners on Galaxy S23+ - https://github.com/Proto-App/Proto-Android/issues/439
- AMS1117-1.2
- AMS1117-1.5
- AMS1117-1.8
- AMS1117-2.5
- AMS1117-3.3
- AMS1117-5.0
> Wrong corners on Galaxy S23+ - https://github.com/Proto-App/Proto-Android/issues/439
arm64-v8a
Android 6.0+
nodpi
91
January 16, 2026
PROTO - circuit simulator
1.46.0
(91)
Requires Android: Android 6.0+
Architecture: armeabi-v7a
Screen DPI: nodpi
SHA1: edcaf624f73dffbb50adb4758a6ce1b7d90ac372
Base APK: com.proto.circuitsimulator.apk
Split APKs: config.armeabi_v7a, config.xhdpi
Size: 19.82 MB
What's New:
> New component [MISC PACK]: AMS1117 voltage regulators:
- AMS1117-1.2
- AMS1117-1.5
- AMS1117-1.8
- AMS1117-2.5
- AMS1117-3.3
- AMS1117-5.0
> Wrong corners on Galaxy S23+ - https://github.com/Proto-App/Proto-Android/issues/439
- AMS1117-1.2
- AMS1117-1.5
- AMS1117-1.8
- AMS1117-2.5
- AMS1117-3.3
- AMS1117-5.0
> Wrong corners on Galaxy S23+ - https://github.com/Proto-App/Proto-Android/issues/439
armeabi-v7a
Android 6.0+
nodpi
91
February 17, 2026
PROTO - circuit simulator
1.46.0
(91)
Requires Android: Android 6.0+
Architecture: arm64-v8a
Screen DPI: nodpi
SHA1: b21ac46e546bbf545ab3abffd4615e5b13f4396a
Base APK: com.proto.circuitsimulator.apk
Split APKs: config.arm64_v8a, config.xhdpi
Size: 22.81 MB
What's New:
> New component [MISC PACK]: AMS1117 voltage regulators:
- AMS1117-1.2
- AMS1117-1.5
- AMS1117-1.8
- AMS1117-2.5
- AMS1117-3.3
- AMS1117-5.0
> Wrong corners on Galaxy S23+ - https://github.com/Proto-App/Proto-Android/issues/439
- AMS1117-1.2
- AMS1117-1.5
- AMS1117-1.8
- AMS1117-2.5
- AMS1117-3.3
- AMS1117-5.0
> Wrong corners on Galaxy S23+ - https://github.com/Proto-App/Proto-Android/issues/439
arm64-v8a
Android 6.0+
nodpi
Variant
Arch
Version
DPI
90
December 19, 2025
PROTO - circuit simulator
1.45.0
(90)
Requires Android: Android 6.0+
Architecture: arm64-v8a
Screen DPI: nodpi
SHA1: 78180920e2710007d76f0d9135b3311e6a824f7b
Base APK: com.proto.circuitsimulator.apk
Split APKs: config.arm64_v8a, config.xxhdpi
Size: 22.82 MB
What's New:
> New component [TTL PACK]: 74283 - 4-bit binary full adder with fast carry.
> Fix top bar UI issue on Android 16 - https://github.com/Proto-App/Proto-Android/issues/437
> Fix top bar UI issue on Android 16 - https://github.com/Proto-App/Proto-Android/issues/437
arm64-v8a
Android 6.0+
nodpi
90
December 20, 2025
PROTO - circuit simulator
1.45.0
(90)
Requires Android: Android 6.0+
Architecture: armeabi-v7a
Screen DPI: nodpi
SHA1: 0ff2c1fb8942158c28000de75310b54ce3b04161
Base APK: com.proto.circuitsimulator.apk
Split APKs: config.armeabi_v7a, config.xhdpi
Size: 19.82 MB
What's New:
> New component [TTL PACK]: 74283 - 4-bit binary full adder with fast carry.
> Fix top bar UI issue on Android 16 - https://github.com/Proto-App/Proto-Android/issues/437
> Fix top bar UI issue on Android 16 - https://github.com/Proto-App/Proto-Android/issues/437
armeabi-v7a
Android 6.0+
nodpi
90
December 20, 2025
PROTO - circuit simulator
1.45.0
(90)
Requires Android: Android 6.0+
Architecture: arm64-v8a
Screen DPI: nodpi
SHA1: 047e435e89d12a8f2c14c0e8657d43aa80e9efee
Base APK: com.proto.circuitsimulator.apk
Split APKs: config.arm64_v8a, config.xhdpi
Size: 22.81 MB
What's New:
> New component [TTL PACK]: 74283 - 4-bit binary full adder with fast carry.
> Fix top bar UI issue on Android 16 - https://github.com/Proto-App/Proto-Android/issues/437
> Fix top bar UI issue on Android 16 - https://github.com/Proto-App/Proto-Android/issues/437
arm64-v8a
Android 6.0+
nodpi
More Information
Package Name:
Update Date:
2026-03-22
Latest Version:
1.48.0
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.