Breadpad app for iPhone and iPad

Breadpad is a digital electronics breadboard exclusively for iPad and iPhone. Whether you are a student, hobbyist, or professional engineer, Breadpad can help you ideate, plan, and evaluate new circuit designs. Place components, connect them, and simulate the result with a virtual oscilloscope.

Breadpad is free to get started.

Free Features:
- View any .breadpad file, including files from Premium subscribers
- Intuitively connect components on a virtual breadboard
- Customize chips with your own SPICE simulations
- Place resistors, capacitors, and diodes with precise device models
- Export simulation data to CSV for further analysis and visualization
- Optionally store .breadpad files in iCloud for collaboration, sharing, and seamless file sync
- Only on Apple Silicon: use Breadpad on your Mac to view and edit breadboard simulations
- Share your files via iMessage, email, Google Drive, or any other collaboration tool
- Simulate 8-pin, 14-pin, and 16-pin DIP-packaged integrated circuits

Unlock more features with a Premium subscription.

Premium Features:
- Run temperature sensitivity analysis to evaluate environmental effects on your circuits
- Unlock five additional voltage sources:
- Contextual suggestions for simulation parameters and SPICE code from SPICEGPT, an AI assistant for circuit design
- Place chips with 18+ pins on the breadboard

View, edit, and share .breadpad files:
- Breadpad files contain an entire breadboard circuit, simulation data logs, component netlists, and datasheets in a single shareable file
- Collaborate with your team using your favorite file synchronization tools: iCloud, Dropbox, Google Drive, One Drive, and more!
- Free users can view any .breadpad file, including files created by Premium subscribers
- Precise simulation output based on the industry-standard ngspice open source project

Implement simulations of integrated circuit inputs and outputs using SPICE:
- Place virtual DIP-packaged integrated circuits on your breadboards
- Each chip is modeled by an editable SPICE subcircuit containing analog and/or digital components
- Edit SPICE netlist source code using a built-in text editor compatible with most LTSPICE and PSPICE device models
- Import and save PDF datasheets for reference and faster collaboration
- Premium subscribers receive suggestions from SPICEGPT with improvements to simulated device netlists

Create accurate diode simulations by adjusting a variety of detailed parameters or selecting from dozens of pre-configured common parts:
- Breakdown voltage and current
- Zero-bias junction capacitance
- Saturation current
- Grading and emission coefficients
- Series resistance
- Transit time
- Junction potential
- Noise characteristics
- Energy gap

Every week, we add new example circuits and learning materials available for free to all Breadpad users, helping accelerate the progress of beginners and experienced engineers alike.

Premium subscribers unlock five additional kinds of voltage sources:
1. pulsed DC signals
2. exponential sources
3. piecewise linear sources
4. single-frequency FM and
5. amplitude-modulated AM


Breadpad does not collect or sell your personal data.
Privacy policy: https://breadpad.com/privacy/
Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/