Comparison

Digital Circuit Simulator Lite vs Physics Lab AR

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

Head to head
About

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.

Highlights
  • 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
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 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.

About

Physics Lab AR

Explore physics through interactive virtual experiments and augmented reality. Build and test electrical circuits with over 100 components, visualize electromagnetic fields, and even design your own galaxy. Ideal for students, teachers, and curious minds of all ages.

Highlights
  • Virtual lab with AR mode
  • Build 3D electric circuits
  • 100+ circuit components
  • Precise scientific calculations
  • Electromagnetic field visualization
  • Design custom galaxies
Features
Read full description

Are you a curious student eager to explore deeper into the physics world? Are you a science enthusiast who wants to share your ideas with others? Are you an adventurer bounded by textbook instructions and budget limits? Are you a romantic dreaming of having your own customized galaxy? Are you a teacher who wants to use fun and interactive demonstrations in your physics lessons? Learn science by doing experiments in your virtual lab with Physics Lab. With our new AR mode, you can even bring your experiments to life! In Physics Lab, you can play with various circuit components, build your own 3D electric circuits, and see how they work in real time. With 100+ circuit components to choose from (and more coming soon), the possibilities are endless. Plus, all of our experiments are backed by science and calculated with precise numbers, so you can learn and have fun at the same time. Physics Lab is not only for students, but for teachers too! Use it to demonstrate experiments in class, and help your students learn and explore in a new way. And because it's virtual, you don't have to worry about expensive lab equipment or safety concerns. Explore with freedom - Pick from 100+ circuit components (more coming!) - Drag them from the toolbox to the virtual desk and connect them the way you like - All experiment results are backed by science and calculated in precise numbers - Design your own galaxy or load from our solar system - Electromagnetic experiments with field line visualization Better than real life - Set properties of circuit components to different figures and observe changes of behavior and stats in real time - One-click to turn what you have built into an editable circuit diagram and vice versa - No expenses on lab equipments, no worry about safety issues A lab for everyone - Teachers have been using Physics Lab to demonstrate experiments and assist teaching in class - Students, in primary or high schools, can learn science and explore freely anywhere, anytime - Kids or not, curious minds now have their own virtual lab to learn knowledge by doing experiments Whether you're a teacher, student, or just someone who loves learning about physics, Physics Lab has something for everyone. Connect with us and let us know what you think, and check out our subscription options to access even more experiments and components. We can't wait to see what you create! Email: turtlesim@u.northwestern.edu =========================== Concerning Component Subscription During your subscription period, you will have access to all paid components for free, including future ones. 1) Subscription periods are one month long and will be charged to your iTunes Account at the time of purchase. 2) Your subscription is linked to your Physics Lab account. 3) You will be charged for renewals 24 hours before the end of the current period, and will be notified of the cost. 4) You can manage your subscriptions at any time in your Account Settings. 5) By purchasing a subscription, you are agreeing to our Terms of Use and Privacy Policy. Terms of Use: https://static.turtlesim.com/products/Term-Of-Use.txt Privacy Policy: https://static.turtlesim.com/products/Privacy-Policy.txt

Screenshots

Digital Circuit Simulator Lite4 screens
Physics Lab AR4 screens

Verdict

The call

The clearest difference is rating: Physics Lab AR at 4.7 against Digital Circuit Simulator Lite's 2.8. Physics Lab AR also leads on ratings volume (1.8K vs 29) and review sentiment (47% vs 33%). Digital Circuit Simulator Lite's advantage is in-app purchases (none vs 7) and update cadence (fortnightly vs every 2 months). On price, 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

Both are free to download. Physics Lab AR sells 7 in-app purchases, starting at $1.49 per month. Digital Circuit Simulator Lite asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Physics Lab AR holds the better App Store score, 4.7 against 2.8. That said, the two scores are not equally well evidenced: Physics Lab AR has 1.8K 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 47% of Physics Lab AR's.

UpkeepUpdate frequency

Digital Circuit Simulator Lite ships an update fortnightly, Physics Lab AR every 2 months. The most recent releases landed on July 5, 2026 and October 1, 2026 respectively.

Scorecard7 real differences · 3 level
Digital Circuit Simulator Lite versus Physics Lab AR: the parameters behind the verdict, then further details
ParameterDigital Circuit Simulator LitePhysics Lab AR
PriceFreeFree
Rating2.8 (29 ratings)4.7 (1.8K ratings) — better
Positive reviews33.3% of reviews47.1% of reviews — better
Number of ratings291.8K — better
Update frequencyFortnightly — betterEvery 2 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS7.0 — better15.0
Further details — not scored
Size37 MB177 MB
Age rating4+4+
DeveloperAmran AlQasmiTurtle Sim LLC

Customer experience

Digital Circuit Simulator Lite

All ratings29 ratings
Positive41.4%
Neutral10.3%
Negative48.3%
Written reviews27 reviews
Positive33.3%
Neutral7.4%
Negative59.3%

Physics Lab AR

All ratings1,811 ratings
Positive91.4%
Neutral3.8%
Negative4.7%
Written reviews121 reviews
Positive47.1%
Neutral7.4%
Negative45.5%

Bugs and requests

Digital Circuit Simulator Lite

Not enough reviews yet to summarise bugs or requests.

Physics Lab AR

Reported bugs

5 issues
  • App crashes when opening experiments or circuits
  • Wires don't attach properly
  • Objects fall through the table
  • Camera position issues
  • App freezes or becomes unresponsive

Requested features

6 requests
  • Add more components like transistors and potentiometers
  • Improve camera controls and view options
  • Implement saving and loading of circuits
  • Add more tutorials and explanations
  • Support for Vietnamese and other languages
Show 1 more
  • Improve stability and reduce crashes

In-app purchases

None

Digital Circuit Simulator Lite

No in-app purchases

7 purchases

Physics Lab AR

Subscriptions1
  • Monthly Component Subscription$1.491 Month
One-time6
  • 60 Diamonds$0.99
  • 10 Diamonds$0.99
  • 120 Diamonds$1.99
Show 3 more
  • 300 Diamonds$4.99
  • 680 Diamonds$9.99
  • 1280 Diamonds$19.99

Questions

Is Digital Circuit Simulator Lite free?
Digital Circuit Simulator Lite is free to download, with no in-app purchases.
Is Physics Lab AR free?
Physics Lab AR is free to download, with in-app purchases available.
Which has better reviews, Digital Circuit Simulator Lite or Physics Lab AR?
Physics Lab AR is rated higher. Digital Circuit Simulator Lite averages 2.8 out of 5 from 29 ratings, while Physics Lab AR averages 4.7 from 1.8K ratings.
Do Digital Circuit Simulator Lite or Physics Lab AR have ads?
Neither Digital Circuit Simulator Lite nor Physics Lab AR shows ads.
Which is updated more often, Digital Circuit Simulator Lite or Physics Lab AR?
Digital Circuit Simulator Lite ships an update fortnightly, and Physics Lab AR every 2 months. Most recently, Digital Circuit Simulator Lite was updated on July 5, 2026 and Physics Lab AR on October 1, 2026.

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