PROTO - circuit simulator

Mar 26, 2026

Older Versions of PROTO - circuit simulator

If you are experiencing issues with the latest version of PROTO - circuit simulator due to bugs or incompatibility with your device, downloading an older version can be a practical solution before the app developer fixes the problem. APKPure offers all of the older versions of PROTO - circuit simulator that are compatible with various devices and Android systems. Download rollbacks of PROTO - circuit simulator for Android. All downloads from APKPure are free from viruses and provide a fast, secure way to get the app version history you need.

All Versions of PROTO - circuit simulator

1.48.0(93)Latest
XAPK
Mar 26, 202623.0 MBAndroid 6.0+
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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+
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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+
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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+
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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
1.44.0(89)
XAPK
Nov 28, 202522.7 MBAndroid 6.0+
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What's new in the version 1.44.0
Updated on Nov 28, 2025
> Tooltips - you can assign custom tooltip for each component in simulation
> Reorganized PROTO menu
> Optimized simulation speed by 10%
> Try to fix JavaScript crashes on devices:
- Redmi A3
- Infinix SMART 9
- Itel itel A50
1.43.0(88)
XAPK
Nov 2, 202519.7 MBAndroid 6.0+
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What's new in the version 1.43.0
Updated on Nov 2, 2025
> Thank you for your support and for completing the PROTO survey! We've gathered a ton of new ideas.\n\nYou can check out the survey results on our website (BLOG section).

> We have decided to make the themes and CMOS component [CD 4019] available for free! Enjoy!
1.42.0(87)
XAPK
Oct 14, 202527.1 MBAndroid 6.0+
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What's new in the version 1.42.0
Updated on Oct 14, 2025
> [CMOS PACK] New component - 4093 - quad 2-input Schmitt-trigger NAND gate
> [CMOS PACK][TTL PACK] Add datasheets for all components
1.41.0(86)
XAPK
Sep 23, 202524.5 MBAndroid 6.0+
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What's new in the version 1.41.0
Updated on Sep 23, 2025
> [DIGITAL PACK] Add RESET and SET terminals in DFlipFlop component
> Add ability to change voltage threshold (Vth or Vgs) in Mosfet component
> [TTL PACK] New components:
> 7424 - quad 2-input Schmitt-trigger NAND gate
> 7451 - dual AND-OR-Invert (AOI) gates
> [CMOS PACK] New components:
> 4013 - dual D-type flip-flop
> 4043 - quad 3-state R/S latch
1.40.0(85)
XAPK
Aug 15, 202524.1 MBAndroid 6.0+
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What's new in the version 1.40.0
Updated on Aug 15, 2025
> Update PROTO to Android 15
> Add edge-to-edge support on Android 15
> You can expect short survey about PROTO in next weeks (it will help us with PROTO development)
> Fix component labels not copied - https://github.com/Proto-App/Proto-Android/issues/419
> Improve JavaScript landscape UI - https://github.com/Proto-App/Proto-Android/issues/415
> Try to fix JavaScript crash on CAT S42 device - https://github.com/Proto-App/Proto-Android/issues/411
1.39.0(84)
XAPK
Jun 12, 202521.9 MBAndroid 6.0+
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What's new in the version 1.39.0
Updated on Jun 12, 2025
> New component [CMOS ADDON]: 4026 - decade counter and 7-segment display driver
> Optimized rendering by 30% with visible labels
> Try to fix JavaScript crash on Huawei MatePad T 10

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