PROTO - circuit simulator

All Versions of PROTO - circuit simulator

• 
  1.53.0(99)This is the latest versionLatest

  XAPK

  Oct 31, 202619.0 MBAndroid 7.0+What's New
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  What's new in the version 1.53.0

  Updated on Oct 31, 2026

  • New component [MISC PACK]: Speaker — listen to your circuit
  • New component [MISC PACK]: Net label — connect nodes by name, without wires
  • New example: Beeper (IC 555)
  • Bug fixes and stability improvements

• 
  1.52.0(98)

  XAPK

  Oct 12, 202619.2 MBAndroid 10.0+What's New
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  What's new in the version 1.52.0

  Updated on Oct 12, 2026

  • 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

• 
  1.51.0(97)

  XAPK

  Sep 14, 202623.5 MBWhat's New
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  What's new in the version 1.51.0

  Updated on Sep 14, 2026

  • 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

• 
  1.50.0(96)

  XAPK

  Aug 10, 202619.2 MBAndroid 6.0+What's New
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  What's new in the version 1.50.0

  Updated on Aug 10, 2026

  • 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

• 
  1.49.1(95)

  XAPK

  Jun 28, 202619.0 MBWhat's New
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  What's new in the version 1.49.1

  Updated on Jun 28, 2026

  • 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)

• 
  1.49.0(94)

  XAPK

  Jun 10, 202619.0 MBAndroid 6.0+What's New
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  What's new in the version 1.49.0

  Updated on Jun 10, 2026

  • 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

• 
  1.48.0(93)

  XAPK

  Mar 26, 202623.0 MBAndroid 6.0+What's New
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  What's new in the version 1.48.0

  Updated on Mar 26, 2026

  > 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

• 
  1.47.0(92)

  XAPK

  Feb 20, 202623.0 MBAndroid 6.0+What's New
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  What's new in the version 1.47.0

  Updated on Feb 20, 2026

  > 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

• 
  1.46.0(91)

  XAPK

  Jan 15, 202620.4 MBAndroid 6.0+What's New
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  What's new in the version 1.46.0

  Updated on Jan 15, 2026

  > 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

• 
  1.45.0(90)

  XAPK

  Dec 19, 202522.8 MBAndroid 6.0+What's New
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  What's new in the version 1.45.0

  Updated on Dec 19, 2025

  > 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