Circuit simulator

All Versions of Circuit simulator

• 
  1.46(56)This is the latest versionLatest

  XAPK

  Nov 6, 20269.7 MBAndroid 7.0+What's New
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  What's new in the version 1.46

  Updated on Nov 6, 2026

  🔌 Arduino-style programmable chip (in development): write its program, drive a 16×2 LCD and an EEPROM. 53 new parts (154 in all) and 57 new examples (160): power management, single-phase motor, JFETs and more. The simulation now runs continuously, like a real instrument. Simpler oscilloscope: tap a point with the Probe to see its signal; choose in Settings what it shows.

• 
  1.44(54)

  XAPK

  Oct 26, 20265.4 MBAndroid 7.0+What's New
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  What's new in the version 1.44

  Updated on Oct 26, 2026

  ⚡ New electricity course: 18 lessons with animated simulations, reviews, an exam and a diploma. Japan module: interactive building wiring plans, symbols with furigana, a 第二種電気工事士 mock exam (50 questions with circuits and diagrams) and 技能 practice. Floating ammeter and voltmeter, 13 new parts with real-looking icons, an easier oscilloscope (probe, measurements, cursors) and zoom on every drawing. Heavy circuits no longer stall the scope.

• 
  1.43(53)

  XAPK

  Oct 24, 20265.0 MBAndroid 7.0+What's New
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  What's new in the version 1.43

  Updated on Oct 24, 2026

  ⚡ Electricity: new terminal-box case (a 230/400 V motor wired in delta on 400 V), decimal separator by language, buttons that show the current value and cards that open at the top. Simulator: the 7-segment display draws current, a hand-built counter shows 0 to 9 in full, an op-amp with no load now shows the scope, and the time window grows by itself when a capacitor gets bigger. Fixes: first instant with transistors, switch in the neutral and forward-biased diodes.

• 
  1.26(36)

  XAPK

  Aug 28, 20268.0 MBAndroid 7.0+What's New
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  What's new in the version 1.26

  Updated on Aug 28, 2026

  Added Bengali and Arabic + minor fixes.

• 
  1.21(31)

  XAPK

  Aug 21, 20268.0 MBAndroid 7.0+What's New
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  What's new in the version 1.21

  Updated on Aug 21, 2026

  • Fixed: saving, sharing and PNG export.
  • Redesigned interface: floating round buttons and a component panel by families.
  • 10 languages.
  • New Settings screen: theme, text size, values on the grid, tutorial.
  • Calculators in the formulas section, fed by your own circuit.
  • Polarized capacitor, with a warning when it is wired backwards.
  • Wire pin to pin with two taps; the lock moves a whole connected block.
  • Warning when a part runs far over its limit.
  • New examples and simulation fixes.

• 
  1.18(27)

  XAPK

  Aug 13, 202616.2 MBAndroid 7.0+What's New
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  What's new in the version 1.18

  Updated on Aug 13, 2026

  • Fixed: saving, sharing and PNG export.
  • Redesigned interface: floating round buttons and a component panel by families.
  • 10 languages.
  • New Settings screen: theme, text size, values on the grid, tutorial.
  • Calculators in the formulas section, fed by your own circuit.
  • Polarized capacitor, with a warning when it is wired backwards.
  • Wire pin to pin with two taps; the lock moves a whole connected block.
  • Warning when a part runs far over its limit.
  • New examples and simulation fixes.