Comparison

Digital Gate Circuit Simulator vs Simurelay

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Digital Gate Circuit Simulator

This app helps students learn logic design and digital engineering principles by allowing them to create and simulate real-time digital circuits. It provides a flexible workspace with various logic gates and tools for building complex systems, ideal for understanding how computers function.

Highlights
  • Logic gate simulation (AND, OR, NOT, etc.)
  • Virtual linking and wiring tools
  • Live circuit operation and analysis
  • Save, load, and share circuit designs
  • Circuit examples library
  • Undo functionality
Features
Read full description

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 Hex Display, 8-LED Stack Bar, Buzzer, and Label. - Flood gates (3 & 4) inputs for the gates (AND, NAND, OR, NOR, XOR, XNOR). - Optional Tri-State pin for the gates (Buffer, NOT), with Pull-up & Pull-down. - Optional Clock pin for J-K Flip-Flop. - Optional Clear pin for D and T Flip-Flops. - 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.

About

Simurelay

Design and simulate electromechanical systems with a wide range of basic electrical components. Create detailed electrical diagrams using relays, switches, buttons, contactors, and timers.

Highlights
  • Design electromechanical systems
  • Simulate electrical diagrams
  • Basic electrical components library
  • Relays, switches, buttons, contactors
  • Timers and motors simulation
Features
Read full description

Simurelay is a simulator to help you design electromechanical systems and simulate them. It allows to make many electrical diagrams by using the available basic components such as relays, switches, buttons, contactors, timers, motors...

Screenshots

Digital Gate Circuit Simulator4 screens
Simurelay4 screens

Verdict

The call

The clearest difference is price: Simurelay at Free against Digital Gate Circuit Simulator's $7.99. Simurelay also leads on rating (3.9 vs 3.6). Digital Gate Circuit Simulator's advantage is in-app purchases (none vs 3) and update cadence (weekly vs every 7 months). On ratings volume, ads 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

CostPrice · In-app purchases · Ads · Monetization

Simurelay is free to download; Digital Gate Circuit Simulator costs $7.99 up front. Simurelay sells 3 one-off in-app purchases. Digital Gate Circuit Simulator asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Simurelay holds the better App Store score, 3.9 against 3.6. Both are backed by a comparable volume of ratings — 11 and 17 respectively. Written reviews complicate that: 69% of Digital Gate Circuit Simulator's written reviews are positive against 52% of Simurelay's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Digital Gate Circuit Simulator ships an update weekly, Simurelay every 7 months. The most recent releases landed on October 5, 2026 and October 14, 2026 respectively.

Scorecard7 real differences · 3 level
Digital Gate Circuit Simulator versus Simurelay: the parameters behind the verdict, then further details
ParameterDigital Gate Circuit SimulatorSimurelay
Price$7.99Free — better
Rating3.6 (11 ratings)3.9 (17 ratings) — better
Positive reviews69.2% of reviews — better52.3% of reviews
Number of ratings1117 — better
Update frequencyWeekly — betterEvery 7 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Mac — better
Requires iOS7.0 — better15.6
Further details — not scored
Size37 MB19 MB
Age rating4+4+
DeveloperAmran AlQasmiAbdessamed Benkabouya

Customer experience

Digital Gate Circuit Simulator

All ratings11 ratings
Positive63.6%
Neutral9.1%
Negative27.3%
Written reviews13 reviews
Positive69.2%
Neutral15.4%
Negative15.4%

Simurelay

All ratings17 ratings
Positive76.5%
Neutral0.0%
Negative23.5%
Written reviews65 reviews
Positive52.3%
Neutral16.9%
Negative30.8%

In-app purchases

None

Digital Gate Circuit Simulator

No in-app purchases

3 purchases

Simurelay

One-time3
  • Timers Coils and Contacts$7.99
  • Advanced Tools$7.99
  • Full Version$14.99

Questions

Is Digital Gate Circuit Simulator free?
Digital Gate Circuit Simulator costs $7.99, with no in-app purchases.
Is Simurelay free?
Simurelay is free to download, with in-app purchases available.
Which has better reviews, Digital Gate Circuit Simulator or Simurelay?
Simurelay is rated higher. Digital Gate Circuit Simulator averages 3.6 out of 5 from 11 ratings, while Simurelay averages 3.9 from 17 ratings.
Do Digital Gate Circuit Simulator or Simurelay have ads?
Neither Digital Gate Circuit Simulator nor Simurelay shows ads.
Which is updated more often, Digital Gate Circuit Simulator or Simurelay?
Digital Gate Circuit Simulator ships an update weekly, and Simurelay every 7 months. Most recently, Digital Gate Circuit Simulator was updated on October 5, 2026 and Simurelay on October 14, 2026.

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