Digital Circuit Simulator Lite vs Electronics Toolkit!
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Digital Circuit Simulator Lite
This app helps students learn digital engineering and computer science concepts through interactive logic circuit design. It provides a flexible workspace with various logic gates and tools to build and simulate digital circuits in real-time. Ideal for understanding fundamental computer operations and performing lab experiments.
- Logic gate simulation (AND, OR, NOT, etc.)
- Real-time circuit building and testing
- Virtual wiring and link tools
- Unlimited scrollable design plane
- Circuit lock for safe operation
- Synchronized digital waveform clock generators
- Save, load, share, and print circuits
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DigicalSim (formerly: iLogicDesigner) is a full featured app which assists students in logic design, digital engineering, computer science and mathematics. The app based on basic digital building blocks, logic gates. No knowledge of logic gates or digital circuits is required. It offers the basic building blocks, wiring tools and a flexible plane to create live real-time digital circuits, ideal for anyone who wants to learn the basic principles of how computers work - especially students of digital engineering, learn how to create simple logic gates, latches, flip-flops, adders, shift registers and counters. it can help them perform complete lab experiments. ► Features: - AND, NAND, OR, NOR, XOR, XNOR, Buffer, NOT, j-k Flip-Flop, D Flip-Flop, T Flip-Flop, Switch, Clock, Vcc, GND, VLink-Out, VLink-In, LED, 7-Segment Display, LED Stack Bar, and Label. - Flood gates (3 & 4) inputs for the gates (AND, NAND, OR, NOR, XOR, XNOR). - Multi-Color smooth curved wires. - Ability to add Virtual Links for tidy circuits. - Unlimited scrollable plane space, for extra large projects. - Run mode for clean circuit look, while operating live. - Circuit Lock, for safe Run. - Two switch operation modes (Toggle or Pulse). - Switchable synchronized digital waveform clock generators. with adjustable frequency. - Switches can be linked to work exclusively together. - Both Positive edge & Negative edge triggering supported for flip-flops, with indicator. - Configurable LED light color. - Live value indicators at each leg, for easy analysis. - Customizable tag for elements. - Customizable labels can be added anywhere. - Design-Time snap grid for easier alignment and cleaner look. - Zoom in & out, Also can be automatically zoomed to Show Circuit extents. - Persistent Circuit, it saves current circuit automatically to be completed later. - Save and load circuits using file manager. - A library of ready made circuit examples for quick jump start. - Circuits Can be shared and printed. - Re-assignable circuit diagram origin. - Append another circuit to the current circuit. - Highlight the gate wirings while dragged. - Select, deselect, duplicate, move & delete gates in groups. - Groups of elements can have distinctive Color and Label with customizable font and font color. - Auto scroll the plane when reach the edged while wiring, dragging or selecting. - Elastic selection rectangle to easily select elements. - Undo functionality, with 10 steps backward. - Direct wiring to use with Apple Pen. - Support to Pick'n Drop. - Boolean function viewer for each Gates & LED, while in run mode. - Live Timeline Viewer.
Electronics Toolkit!
This app provides a comprehensive suite of tools and calculators for electronics engineers, students, and hobbyists. It includes numerous calculators for resistors, LEDs, capacitors, Ohm's law, and more, alongside useful tables and unit converters.
- Resistor color code calculators
- LED resistor calculator
- Ohm's law calculator
- Unit converter
- Logic gates truth tables
- 7-segment display simulator
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Electronics Toolkit is a helpful app with dozens of tools, calculators and references made for electronic engineers, students and hobbyists. Features: Calculators: • Resistor color codes - calculate the resistance of resistors by selecting the colors of the bands • SMD resistor codes - calculate the resistance of SMD resistors by entering the number • LED resistor calculator - calculate the needed resistance to connect en LED to a power source • Parallel resistors - calculate the resistance of resistors in parallel • Voltage divider - calculate the output voltage of a voltage divider • Series resistors - calculate the resistance of resistors in series • Ohm's law - calculate the voltage, current of resistance by entering the other two • Capacitance calculator - calculate the capacitance, voltage or charge by entering the other two • Battery discharge - calculate the time it takes to discharge a battery • Inductor color codes - calculate the inductance of inductors by selecting the colors of the bands • Parallel capacitors - calculate the capacitance of capacitors in parallel • Series capacitors - calculate the capacitance of capacitors in series • Unit converter - unit converter for length, temperature, area, volume, weight, time, angle, power and base • Op-amp calculator - calculate the output voltage of non-inverting, inverting, summing and differential opamps • Wheatstone bridge - calculate the resistance of one resistor in a balanced bridge or calculate the output voltage • Inductor codes - calculate the inductance of inductors by entering the number • Capacitor codes - calculate the capacitance of capacitors by entering the number • DAC and ADC calculator - calculate the output of digital-analog and analog-digital converters • Wavelength frequency calculator - calculate the frequency or wavelength of a wave • SI prefixes - convert numbers with SI prefixes • Capacitor energy - calculate the energy in a capacitor • Slew rate calculator - calculate the slew rate • Star delta transformation - calculate the resistors in a star delta transformation • Zener calculator - calculate the resistance of the resistor and voltage of the zener • Air core inductor calculator - calculate the inductance and wire length of an air-core inductor • 555 timer calculator - calculate the frequency, period, duty cycle, high time and low time of a popular 555 timer circuit • Plate capacitor calculator - calculate the capacity of a plate capacitor • Resistance to color code calculator - calculate the colors on the resistor by entering the resistance • LM317 - calculate the output voltage of an LM317 • Low pass filters • Wire resistance - calculate the resistance of an electrical wire • RMS voltage • Decibel calculator •Reactance Tables: • Logic gates - truth table of the 7 logic gates with interactive buttons • 7-segment display - an interactive display that you can change by clicking on one of the segments or by clicking on a button to show a hexadecimal character • ASCII - decimal, hexadecimal, binary, octal and char ASCII table • Resistivity - table with the resistivity of common metals at 293K • Arduino pinout • Pinout diagrams of 4000 and 7400 series ICs
Screenshots
Verdict
The clearest difference is rating: Electronics Toolkit! at 4.3 against Digital Circuit Simulator Lite's 2.8. Electronics Toolkit! also leads on ratings volume (556 vs 29). Digital Circuit Simulator Lite's advantage is in-app purchases (none vs 1) and ads (none vs shown). On price, review sentiment and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Electronics Toolkit! sells 1 one-off in-app purchase. Digital Circuit Simulator Lite asks for nothing beyond the download.
Electronics Toolkit! holds the better App Store score, 4.3 against 2.8. That said, the two scores are not equally well evidenced: Electronics Toolkit! has 556 ratings behind it against 29, so its average is the more settled of the two. Written reviews point the same way: 33% of Digital Circuit Simulator Lite's written reviews are positive against 38% of Electronics Toolkit!'s.
Digital Circuit Simulator Lite ships an update fortnightly, Electronics Toolkit! every 2 months. The most recent releases landed on July 5, 2026 and September 29, 2026 respectively.
| Parameter | Digital Circuit Simulator Lite | Electronics Toolkit! |
|---|---|---|
| Price | Free | Free |
| Rating | 2.8 (29 ratings) | 4.3 (556 ratings) — better |
| Positive reviews | 33.3% of reviews | 38.2% of reviews — better |
| Number of ratings | 29 | 556 — better |
| Update frequency | Fortnightly — better | Every 2 months |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 7.0 — better | 11.0 |
| Further details — not scored | ||
| Size | 37 MB | 23 MB |
| Age rating | 4+ | 4+ |
| Developer | Amran AlQasmi | Electronial |
Customer experience
Digital Circuit Simulator Lite
Electronics Toolkit!
Bugs and requests
Digital Circuit Simulator Lite
Not enough reviews yet to summarise bugs or requests.
Electronics Toolkit!
Reported bugs
10 issues- App crashes when entering values in calculation fields
- Keyboard doesn't appear or dismiss properly
- Pro version purchase not activating features
- App reverts to free version after purchase
- Calculation functions non-functional
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- Input fields partially visible or cut off
- App won't load on some devices
- Navigation issues (no back button to main menu)
- Unstable performance and frequent crashes
- Blurry or distorted text in some sections
Requested features
8 requests- Dark mode option
- Working calculator functionality with proper input fields
- Multi-language support (Turkish, Spanish, Hindi, etc.)
- Expanded IC pinout database
- More detailed background information and tutorials
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- Keyboard dismiss functionality
- Better translation quality
- Cross-device license sharing
In-app purchases
Digital Circuit Simulator Lite
No in-app purchases
Electronics Toolkit!
- Pro version$2.99
Questions
Is Digital Circuit Simulator Lite free?
Is Electronics Toolkit! free?
Which has better reviews, Digital Circuit Simulator Lite or Electronics Toolkit!?
Do Digital Circuit Simulator Lite or Electronics Toolkit! have ads?
Which is updated more often, Digital Circuit Simulator Lite or Electronics Toolkit!?
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