Singular: Circuit Simulator
Advanced Circuit Simulator App
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
A modern, professional-grade analog & logic circuit simulator built for students, makers, engineers, and anyone who loves electronics. Design & simulate circuits now!
Singular is a professional-grade analog & logic circuit simulator designed for your iPhone and iPad. Build, simulate, and analyze electronic circuits with an intuitive drag-and-drop editor and a powerful real-time simulation engine — no internet required.
Whether you're an electrical engineering student studying for exams, a maker prototyping your next project, or a professional verifying a design, Singular gives you a complete electronics workbench in your pocket.
POWERFUL SIMULATION ENGINE
• Modified Nodal Analysis (MNA) with TR-BDF2 adaptive solver
• Real-time transient, DC, and AC analysis
• Frequency-aware adaptive timestep — accurate results at any speed
• Newton-Raphson nonlinear convergence for semiconductors
• Hot-swap: modify your circuit while simulation is running
40+ ELECTRONIC COMPONENTS
Passive — Resistor, Capacitor, Inductor, Potentiometer
Sources — DC Voltage, AC Voltage, Pulse Generator
Diodes — Standard Diode, Ideal Diode, LED
Transistors — NPN, PNP, Darlington PNP, N-MOSFET, P-MOSFET
Integrated Circuits — NE555 Timer, Operational Amplifier (Op-Amp)
Logic Gates — AND, OR, NAND, NOR, XOR, XNOR, Inverter, Buffer
Flip-Flops — D, JK, T Flip-Flop, SR Latch
Measurement — Voltmeter, Ammeter
Power Rails — Ground, VCC, VDD, VSS, VEE, ±3.3V, ±5V
REAL-TIME OSCILLOSCOPE
• Multi-trace display with color-coded signals
• Adjustable time base and voltage scale
• Pinch-to-zoom and pan gestures
• 60 fps rendering — smooth and responsive
INTUITIVE CIRCUIT EDITOR
• Drag-and-drop component placement with grid snapping
• Draw wires by tapping terminals — automatic routing
• Rotate, flip, and mirror components freely
• Multi-select, move, and organize your design
• Full undo/redo history (up to 100 steps)
• Pinch zoom (0.1x–5x) and two-finger pan
PROFESSIONAL TOOLS
• Design Explorer with automatic reference designators (R1, C2, U3…)
• Standard value picker — E12, E24, E96 resistor series and standard capacitor values
• Built-in expression evaluator — type "10k*2.2" and get the result instantly
• Real-time voltage, current, and power readouts on every component
• Net name visualization for complex designs
LEARN & EXPLORE
• Built-in example circuits: Voltage Divider, Current Divider, Inverting Amplifier, 555 Timer Demo
• Resource Center with reference articles
• Detailed simulation error guide — understand what went wrong and why
• Save examples to your workspace and modify them freely
SAVE, EXPORT & SHARE
• Save unlimited circuits to your workspace
• Export circuits as portable .circuit files with embedded thumbnails
• Import circuits from other users or devices
• Add names, descriptions, and metadata to every project
DESIGNED FOR iPAD & iPHONE
• Built 100% with SwiftUI for a native Apple experience
• Optimized for both touch and Apple Pencil
• Works entirely offline — your data stays on your device
Singular is the circuit simulator that students wish they had during lectures, that makers reach for at the workbench, and that engineers trust for quick verification. Download it and start building.
Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Ratings & Reviews
New: Ohmmeter
• Measure resistance in real time with the new Ω meter
• Uses micro-current injection (1 µA) for minimal circuit impact
• Adjustable test current from 1 nA to 1 mA
• Place multiple ohmmeters — they won't interfere with each other
• IEC 60617 standard symbol with live SI-formatted readings
New Example
• Ohm Meter Demo 1 — ready-to-run example in the Basic category
The developer, Ali Mert TUFEKCI, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Identifiers
Data Linked to You
The following data may be collected and linked to your identity:
- Identifiers
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Location
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Ali Mert TUFEKCI
- Size
- 18.9 MB
- Category
- Education
- Compatibility
Requires iOS 18.4 or later.
- iPhone
Requires iOS 18.4 or later. - iPad
Requires iPadOS 18.4 or later. - Mac
Requires macOS 15.4 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.4 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Yearly Plan $29.99
- Weekly Plan $4.99
- Weekly Plan $9.99
- Copyright
- © Qualsimm
