PLC Ladder Logic Simulator

All Versions of PLC Ladder Logic Simulator

• 
  2.5.0(30)This is the latest versionLatest

  XAPK

  Oct 5, 202628.8 MBAndroid 7.0+What's New
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  What's new in the version 2.5.0

  Updated on Oct 5, 2026

  5 new premium problems (55 in total): EV Charging Station, Quality Gate Scrap Rate, Greenhouse Climate Control, Silo 4-20 mA Scaling, Car Wash Tunnel.
  New physics scenes and first-time instructions: INC, ADD/MUL/DIV, IN_RANGE/OUT_RANGE, NORM_X/SCALE_X, JMP/LBL.
  New project lesson: Plastic Injection Molding Machine (five-step cycle).
  Sandbox improvements: math blocks read constants and counter values, thermal inertia.
  Startup responsiveness and stability fixes.

• 
  2.4.0(29)

  XAPK

  Sep 6, 202628.5 MBAndroid 7.0+What's New
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  What's new in the version 2.4.0

  Updated on Sep 6, 2026

  5 new premium problems (50 total): Bagging Scale, Railway Level Crossing, Air Compressor, Escalator Energy Saving, Paint Booth Airlock.
  • New physics scenes: weigh hopper, level crossing with a passing train, compressor pressure gauge
  • New control patterns: analog compare with MW0, falling-edge detection, short-cycle protection, two-stage TOF standby, mutual interlock
  • Larger, easier-to-read interface on tablets
  • Small fixes and improvements

• 
  2.3.0(28)

  XAPK

  Aug 30, 202631.1 MBAndroid 7.0+What's New
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  What's new in the version 2.3.0

  Updated on Aug 30, 2026

  5 new premium problems (45 total): Alternating Duty Pumps, One-Button Sliding Gate, Milk Pasteurisation Tank, Generator ATS, Fire Alarm Double-Knock. Realistic physics scenes: a water tank with twin pumps, a factory gate with a photocell, a heat-hold-cool tank. New control patterns: lead/lag pump alternation, double-knock alarm verification, TOF cooldown delay. Fixed freezes at startup on some devices.

• 
  2.2.0(27)

  XAPK

  Aug 23, 202631.0 MBAndroid 7.0+What's New
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  What's new in the version 2.2.0

  Updated on Aug 23, 2026

  5 new premium problems (40 total): Sequential Stop, Two-Speed Motor (Dahlander), Traffic Light Sequence, Periodic Lubrication, Warehouse Stock Tracking. All in live mode with real-time timer and counter values. New drag handle on the live animation card lets you see the scene and input contacts together. Stable problem ordering and general stability improvements.

• 
  2.1.0(26)

  XAPK

  Aug 12, 202628.8 MBAndroid 7.0+What's New
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  What's new in the version 2.1.0

  Updated on Aug 12, 2026

  BIG UPDATE: Live Problem Solving!
  • All 35 problems now solve with live animation — watch tanks fill, cylinders move and conveyors run as your ladder executes
  • Real process physics: tank levels, thermal inertia, cylinder strokes, belt flow
  • Timer and counter values live on the chip in real time
  • Simulation opens the live view automatically + one-time hint balloon
  • Small-screen and large-font fixes, general stability

• 
  2.0.1(25)

  XAPK

  Aug 8, 202630.9 MBAndroid 7.0+What's New
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  What's new in the version 2.0.1

  Updated on Aug 8, 2026

  • New module: Industrial Safety — E-Stop chain, safety relay, light curtains and risk assessment (4 lessons)
  • 15 new animations built for the module: broken wire, dual-channel fault, safety distance and two-hand control
  • 5 new problems, 35 in total: Guillotine Shear, Jog Mode, Pallet Counter, Cold Room, Shift Target
  • Layout improvements for small screens and large system fonts

• 
  1.9.0(23)

  XAPK

  Aug 6, 202630.5 MBAndroid 7.0+What's New
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  What's new in the version 1.9.0

  Updated on Aug 6, 2026

  • 3 new premium problems (30 problems in total)
  • Minor improvements and bug fixes

• 
  1.8.0(22)

  XAPK

  Jul 31, 202630.5 MBAndroid 7.0+What's New
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  What's new in the version 1.8.0

  Updated on Jul 31, 2026

  • 5 new problems: Hydraulic Press, Grouping Station, Parking Occupancy (CTUD), Assembly Line and Gas Alarm — 27 problems in total!
  • Animated "How should it work?" scenarios with realistic scenes for all problems
  • Category filters on the problems list
  • Faster app startup
  • Quiz content fixes

• 
  1.7.0(21)

  XAPK

  Jul 26, 202630.2 MBAndroid 7.0+What's New
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  What's new in the version 1.7.0

  Updated on Jul 26, 2026

  NEW MODULE: "Data Processing & Program Flow" — MOVE, INC/DEC blocks, compare and range contacts (IN/OUT_RANGE), SR/RS flip-flops, the CTUD up-down counter and JMP/LBL program flow. 4 lessons, 6 hands-on exercises, 20 quiz questions.
  
  The Daily Question now adapts to your progress: questions come only from lessons you have completed.
  
  Minor fixes and infrastructure updates.

• 
  1.4.0(18)

  XAPK

  Jul 7, 202627.0 MBAndroid 7.0+What's New
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  What's new in the version 1.4.0

  Updated on Jul 7, 2026

  New: Share your circuit as PNG! Send circuits to friends with a share code — they can open it in the app. Guided training now suggests a related module at the end, plus a nicer celebration. Minor bug fixes.