Comparison

Simple Circuit Builder vs Circuit Simulator Q

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

Head to head
About

Simple Circuit Builder

This virtual lab offers a hands-on experience for learning about resistors and circuit resistance. Easily build and test series and parallel circuits, measure voltage and current, and understand the impact of component changes in real-time.

Highlights
  • Build circuits with up to eight components
  • Five component types
  • Virtual volt and amp meters
  • Adjustable resistor and voltage values
  • Real-time circuit analysis
  • Demonstrates 'Opens' and 'Shorts'
Features
Read full description

Description This is the BEST app to learn about Resistors and Circuit Resistance (Equivalent Resistance). This virtual lab provides an excellent environment for anyone who is interested in understanding series and parallel resistors, learning how to measure voltages across resistors, current through series and parallel circuits and solving simple circuits. Features - VERY SIMPLE and EASY TO USE, with up to eight component sections. - Component sections can easily be configured from five different types. - VIRTUAL "Hands On" experience using volt and amp meters. - Resistor values can easily be changed with a picker, keypad or using randomize button. - Circuit voltage can easily be changed from 1 to 1000 volts with a picker or a keypad. - The "Basics" screen make this app unique for the simplicity and speed of seeing the effects of "Opens" (resistor component with infinite resistance) and "Shorts" (resistor component with zero resistance). - FREE and NO ADVERTISEMENTS. - The circuit is always "LIVE" and immediately shows voltage, current and circuit resistance with any changes made to the circuit.

About

Circuit Simulator Q

Design and simulate complex digital logic circuits with an intuitive interface. Explore basic gates, build counters, ALUs, and even create your own processors. This tool brings your digital electronics ideas to life.

Highlights
  • Advanced circuit design
  • Qnet netlist algorithm
  • Build counter circuits and flip-flops
  • Construct Arithmetic Logic Units (ALUs)
  • Design custom processors
Features
Read full description

Welcome to Circuit Simulator Q! Unleash your creativity and dive into the world of digital circuit design! With Circuit Simulator Q, you can design and simulate logic circuits ranging from the simplest to the most complex designs. Our intuitive interface allows you to bring your ideas to life effortlessly. Key Features: Advanced Circuit Design: Create intricate logic circuits, from basic gates to complex architectures, all at your fingertips. Qnet Algorithm: Experience the power of our superior netlist algorithm, Qnet. Capable of handling the most complex circuits and branches, Qnet ensures seamless netlist generation while being resilient to loops. Build Countable Circuits: Design your own counter circuits and flip-flops, exploring the fundamentals of digital electronics. Arithmetic Logic Units: Construct arithmetic logic units (ALUs) that enable you to perform various calculations and operations. Create Your Own Processor: Push the boundaries of your imagination by designing your very own processors, integrating logic components like never before. Join a community of innovators and transform your ideas into reality with Circuit Simulator Q! Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Simple Circuit Builder4 screens
Circuit Simulator Q4 screens

Verdict

The call

The clearest difference is review sentiment: Simple Circuit Builder at 53% against Circuit Simulator Q's 0%. Simple Circuit Builder also leads on rating (4.0 vs 2.7) and in-app purchases (none vs 2). Circuit Simulator Q's advantage is update cadence (every 2 days vs every 3 weeks). On price, ads, device support and iOS requirement 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. Circuit Simulator Q sells 2 in-app purchases, starting at $4.99 per 7 days. Simple Circuit Builder asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Simple Circuit Builder holds the better App Store score, 4.0 against 2.7. That said, the two scores are not equally well evidenced: Simple Circuit Builder has 28 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 53% of Simple Circuit Builder's written reviews are positive against 0% of Circuit Simulator Q's.

UpkeepUpdate frequency

Simple Circuit Builder ships an update every 3 weeks, Circuit Simulator Q every 2 days. The most recent releases landed on June 4, 2026 and September 19, 2026 respectively.

Scorecard6 real differences · 4 level
Simple Circuit Builder versus Circuit Simulator Q: the parameters behind the verdict, then further details
ParameterSimple Circuit BuilderCircuit Simulator Q
PriceFreeFree
Rating4.0 (28 ratings) — better2.7 (3 ratings)
Positive reviews52.6% of reviews — better0.0% of reviews
Number of ratings28 — better3
Update frequencyEvery 3 weeksEvery 2 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS14.013.0 — better
Further details — not scored
Size14 MB190 MB
Age rating4+4+
DeveloperDavid WhiteAli Mert TUFEKCI

Customer experience

Simple Circuit Builder

All ratings28 ratings
Positive71.4%
Neutral7.1%
Negative21.4%
Written reviews19 reviews
Positive52.6%
Neutral5.3%
Negative42.1%

Circuit Simulator Q

All ratings3 ratings
Positive33.3%
Neutral0.0%
Negative66.7%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

Simple Circuit Builder

No in-app purchases

2 purchases

Circuit Simulator Q

Subscriptions2
  • Weekly Plan$4.997 Days
  • Yearly Plan$29.991 Year

Questions

Is Simple Circuit Builder free?
Simple Circuit Builder is free to download, with no in-app purchases.
Is Circuit Simulator Q free?
Circuit Simulator Q is free to download, with in-app purchases available.
Which has better reviews, Simple Circuit Builder or Circuit Simulator Q?
Simple Circuit Builder is rated higher. Simple Circuit Builder averages 4.0 out of 5 from 28 ratings, while Circuit Simulator Q averages 2.7 from 3 ratings.
Do Simple Circuit Builder or Circuit Simulator Q have ads?
Neither Simple Circuit Builder nor Circuit Simulator Q shows ads.
Which is updated more often, Simple Circuit Builder or Circuit Simulator Q?
Simple Circuit Builder ships an update every 3 weeks, and Circuit Simulator Q every 2 days. Most recently, Simple Circuit Builder was updated on June 4, 2026 and Circuit Simulator Q on September 19, 2026.

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