Circuitry vs Simurelay
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
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.
- Design electromechanical systems
- Simulate electrical diagrams
- Basic electrical components library
- Relays, switches, buttons, contactors
- Timers and motors simulation
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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
Verdict
The clearest difference is in-app purchases: Circuitry at none against Simurelay's 3. Circuitry also leads on ratings volume (155 vs 17) and iOS requirement (12.0 vs 15.6). On price, rating, review sentiment and update cadence 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. Simurelay sells 3 one-off in-app purchases. Circuitry asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 3.9 for Circuitry against 3.9 for Simurelay. That said, the two scores are not equally well evidenced: Circuitry has 155 ratings behind it against 17, so its average is the more settled of the two. Written reviews are what separate them: 54% of Circuitry's written reviews are positive against 52% of Simurelay's.
Circuitry ships an update every 4 months, Simurelay every 7 months. The most recent releases landed on September 13, 2026 and August 1, 2026 respectively.
| Parameter | Circuitry | Simurelay |
|---|---|---|
| Price | Free | Free |
| Rating | 3.9 (155 ratings) | 3.9 (17 ratings) |
| Positive reviews | 54.3% of reviews — better | 52.3% of reviews |
| Number of ratings | 155 — better | 17 |
| Update frequency | Every 4 months — better | Every 7 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 12.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 35 MB | 19 MB |
| Age rating | 4+ | 4+ |
| Developer | Raffael Kaehn | Abdessamed Benkabouya |
Customer experience
Circuitry
Simurelay
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
Simurelay
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Circuitry
No in-app purchases
Simurelay
- Timers Coils and Contacts$7.99
- Advanced Tools$7.99
- Full Version$14.99
