Circuitry vs Circuit Simulator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Circuitry
Build and simulate electronic circuits in an intuitive 3D environment. This app offers lightning-fast analysis and a user-friendly interface, making complex engineering accessible. Circuits are saved as documents for easy sharing and management across devices.
- 3D circuit building
- GPU-accelerated analysis
- Intuitive 3D interface
- Document-based circuit files
- Component placement and connection
- Resistor, voltage source, light bulb components
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Welcome to Circuitry - the world's first and only 3D circuit builder! INSANELY FAST Circuitry uses an optimized, GPU-accelerated network analysis algorithm that will blow your mind. It can calculate the voltages and currents of even the largest circuits in the blink of an eye - an insanely fast blinking eye! SUPER DUPER EASY TO USE While most circuit simulators are stuck in the stone age when it comes to usability, Circuitry takes you on a time-travel journey to the future. Its' 3D interface and intuitive controls will instantly feel familiar - no lengthy tutorials required. DOCUMENT-BASED Every circuit you build in Circuitry is a file. That way, they integrate perfectly into your existing files and can be used exactly the same way: you can duplicate and modify them, share them, and they are available to you on all your devices. HOW TO USE: 1. Place components by dragging from the toolkit to the canvas. 2. Connect components by tapping the sides of the components in cabling mode. 3. Delete or modify components by long pressing on them. AVAILABLE COMPONENTS: - Resistor - Voltage source - Light bulb
Circuit Simulator
Design and simulate electronic and digital circuits in real-time. Visualize voltage and current flow, and analyze circuit behavior with tools like oscilloscopes and multimeters. Offers a user-friendly experience for circuit design and digital electronic analysis.
- Real-time electronic circuit simulation
- Digital circuit simulation
- Voltage and current analysis
- Multichannel oscilloscope
- Multimeter tools
- Circuit design and tuning
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VoltSim is a realtime electronic circuit simulator like Multisim, SPICE, LTspice, Altium or Proto for circuit design with a better user experience. VoltSim is a complete circuit app in which you can design circuits with various components and simulate an electric or digital circuit. During simulation you can check voltage, current and many other variables. Check signals on multichannel oscilloscope or multimeter and tune your circuit in real time! You can also use VoltSim as logic circuit simulator and perform digital electronic analysis! This app will help you visualize how the voltage varies across the circuit and how current flows through it. T&C: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is rating: Circuit Simulator at 4.7 against Circuitry's 3.9. Circuit Simulator also leads on review sentiment (73% vs 54%) and update cadence (every 6 weeks vs every 4 months). Circuitry's advantage is in-app purchases (none vs 8) and iOS requirement (12.0 vs 15.3). On price, 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
Both are free to download. Circuit Simulator sells 8 in-app purchases, starting at $0.99 per month. Circuitry asks for nothing beyond the download.
Circuit Simulator holds the better App Store score, 4.7 against 3.9. Both are backed by a comparable volume of ratings — 155 and 72 respectively. Written reviews point the same way: 54% of Circuitry's written reviews are positive against 73% of Circuit Simulator's.
Circuitry ships an update every 4 months, Circuit Simulator every 6 weeks. The most recent releases landed on September 13, 2026 and September 20, 2026 respectively.
| Parameter | Circuitry | Circuit Simulator |
|---|---|---|
| Price | Free | Free |
| Rating | 3.9 (155 ratings) | 4.7 (72 ratings) — better |
| Positive reviews | 54.3% of reviews | 72.7% of reviews — better |
| Number of ratings | 155 — better | 72 |
| Update frequency | Every 4 months | Every 6 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 15.3 |
| Further details — not scored | ||
| Size | 35 MB | 103 MB |
| Age rating | 4+ | 4+ |
| Developer | Raffael Kaehn | Sindhu Gopi |
Customer experience
Circuitry
Circuit Simulator
Bugs and requests
Circuitry
Reported bugs
6 issues- App crashes on launch
- App doesn't work after download
- Blank white screen on opening
- App won't open, only shows a folder
- Lights won't turn on
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- Cannot close circuits properly
Requested features
14 requests- Add more components (diodes, transistors, capacitors, inductors, speakers, microphones, resistors, switches, LEDs, displays, transformers)
- Add labels/names for components
- Add intensity and voltage for cables
- Add undo/redo buttons
- Add tutorials or guidance videos
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- Allow moving placed components
- Add polarity for components
- Add graphical representation of current flow
- Add export of 2D schematic
- Support DC and AC circuits
- Allow use of virtual meters
- Add oscilloscope function (graph vs time)
- Improve UI intuitiveness
- Add sample circuits
Circuit Simulator
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Circuitry
No in-app purchases
Circuit Simulator
- Extensions Subscription$0.991 Month
- Sensors Extension$0.99
- Custom Chips Extension$1.99
- Instruments extension$2.99
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- Analog Extension$3.99
- Misc Extension$3.99
- Digital Extension$3.99
- Extension Pack$12.99







