Logic Circuit Simulator Pro alternative: a logic lab in any browser
Logic Circuit Simulator Pro is an Android app by Stefan Belinov, on Google Play in the Education category, for designing and simulating digital circuits on a phone or tablet. Its parts list covers the gates (including 3-input versions, buffers and tri-state buffers), PLA, PAL and ROM, multiplexers and demultiplexers, SR, D, JK and T latches and flip-flops, clock generators from 0.5 Hz to 40 kHz, and outputs from light bulbs to 7- and 14-segment displays, an RGB LED and an LED dot matrix. Circuits can be embedded in each other as ICs, imported, exported and shared, and the Pro features include timing diagrams. It can even use the device's sensors (light, tilt, proximity, noise and more) as inputs and its buzzer, vibration and flashlight as outputs. The app contains ads and in-app purchases. Logic Circuit Simulator Pro puts ready-made logic parts on your phone; digiwleea has you build the parts themselves, from the transistor up, in any browser.
What Logic Circuit Simulator Pro is good at
Building and playing with logic circuits on an Android phone or tablet, with a large parts bin, tutorials and notes for every element, and fun extras no desktop tool has: a circuit that reacts when you tilt the phone, cover the light sensor or press a volume button. Embedding circuits as ICs makes bigger designs manageable. If you want a pocket logic sandbox, it is a good one. (digiwleea is an independent project, not affiliated with Logic Circuit Simulator Pro or its developer.)
How digiwleea is different
digiwleea starts one level lower and adds a path to follow. It runs in any modern browser, on phones, tablets, Chromebooks and computers, with nothing to install. You build NOT and NAND from CMOS transistors, then the other gates, adders, latches, flip-flops, registers and RAM, saving each as a reusable part, through a 40+ level course where every part is checked against its truth table, up to an 8-bit CPU that runs a stored program, with an AI tutor (Wleea) and theory lessons alongside. Where the app gives you a flip-flop to place, digiwleea has you wire one from gates and watch why it holds a bit; the gated D latch and the master-slave JK flip-flop are live examples.
| Logic Circuit Simulator Pro | digiwleea | |
|---|---|---|
| Runs on | Android (Google Play) | Any modern browser, including phones |
| Logic parts | Ready-made: gates, PLA, ROM, MUX, flip-flops | Built by you from transistors, then reused |
| Extras | Phone sensors as inputs, buzzer and flashlight as outputs | Truth tables, timelines, checks on every part |
| Learning path | Tutorials and notes per element | Guided 40+ level course to a CPU, with an AI tutor |
| Price | Ads and in-app purchases | Free lab and Act I; Premium for the full course |
No sign-up is needed to start: open the lab and place your first transistor, or read the free theory course. The account (and the AI tutor) are optional.
More comparisons: Logic simulators
See for yourself: build a logic gate from transistors in the simulator, then follow the path from sand to an 8-bit CPU.
Open the digiwleea lab →Frequently asked
Is Logic Circuit Simulator Pro on iPhone?
Its listing we checked is on Google Play for Android. digiwleea runs in the browser, so it works on iPhone, Android and computers without an install.
What can you build in Logic Circuit Simulator Pro?
Combinational and sequential logic from its parts list: gates, PLA, PAL, ROM, multiplexers, flip-flops and latches, clock generators and displays, with circuits embedded in each other as ICs.
Is there a logic gate simulator that builds gates from transistors?
Yes. In digiwleea you build NOT and NAND from CMOS transistors first, then every other gate from them, in the browser.