# Breadpad - SPICE Simulator — Electronic circuit breadboard

> Interactive breadboard and SPICE simulator for electronic circuit design and analysis. (iPhone/iPad app by FreshBizOpps, LLC.)

- Source: https://appshunter.io/ios/app/breadpad-spice-simulator/id6443904179 (this page in markdown: same URL + `.md`)
- Developer: [FreshBizOpps, LLC](https://appshunter.io/developer/1506039373)
- Category: Developer Tools, Education
- Price: Free with in-app purchases
- Rating: 4.00/5 from 155 App Store ratings · 78 written reviews indexed
- Age rating: 4+
- Requires: iOS 18.0 · 42 MB
- Languages: British English, Arabic, Catalan, Croatian, Czech, Danish, Dutch, Finnish, Canadian French, German (Germany) and 25 more
- Released: 2023-09-29
- Data updated: 2026-08-27
- Monetization: freemium
- User reviews in markdown: https://appshunter.io/ios/app/breadpad-spice-simulator/id6443904179/reviews.md

## What is Breadpad?

Breadpad is your go-to analog/digital electronics lab, featuring an interactive breadboard and advanced SPICE simulation. Easily add components, wire them up, and analyze your circuits with a virtual oscilloscope and logic analyzer. Execute full SPICE netlists for unparalleled precision. Choose from a vast library of ready-to-use parts or create your own custom elements.

Dive in for free or upgrade to unlock powerful data export capabilities and superior simulation features.

Free Features:
- Effortlessly wire up components on a digital breadboard
- Choose from over 400 integrated circuits or craft your custom chips using SPICE
- Insert resistors, capacitors, inductors, transistors, and diodes with accurate models
- Instantly see how changes affect your circuit with quick-rendering graphs
- Take snapshots of your breadboard setups for easy inclusion in documents or online
- Import PSPICE and LTSpice netlists for comprehensive simulations (.spice and .cir files)
- Work together using iCloud, iMessage, Airdrop, email, Google Drive, OneDrive, and Dropbox
- Explore a wide selection of pre-configured diodes and transistors with numerous tweakable settings
- Open any .breadpad file at no cost, even those from Premium users
- Experience your designs in 3D with Apple Vision Pro

Premium subscription unlocks:
- Infinite vector plotting from your SPICE simulations
- Conduct temperature sensitivity analysis to assess environmental impacts on circuits
- Access five extra voltage sources, including piecewise and frequency-modulated options
- Export your simulation results to CSV for analysis in tools like Excel, MATLAB, or Python
- Directly modify the SPICE netlist for any component on your breadboard
- Fine-tune component tolerances using six-sigma gaussian distributions
- Analyze manufacturing variance effects with dynamic Monte Carlo simulations

Whether you're a student, hobbyist, or professional engineer, Breadpad is the perfect tool for brainstorming, designing, and refining your circuit ideas. Explore new principles, experiment with designs, and optimize existing systems.

Get Breadpad today and elevate your circuit simulation experience.

Exclusively on iPad, iPhone, Mac, and Vision Pro.

Privacy policy: https://breadpad.com/privacy/
Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Key features

- Interactive digital breadboard
- SPICE netlist simulation
- Virtual oscilloscope and logic analyzer
- Extensive component library
- Custom component creation
- Circuit snapshotting
- Cloud collaboration

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Monthly Breadpad Subscription | $4.99 | per month |
| Annual Breadpad Subscription | $39.99 | per year |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Lifetime Premium | $139.99 | one-time |


## Chart rankings

- #163 in Top Free · Developer Tools (US App Store)
- #82 in Top Grossing · Developer Tools (US App Store)

## What do users think of Breadpad?

Overall sentiment: negative

**Pros**

- 💡 Innovative breadboard simulation concept
- 🎓 Useful learning tool for electronics students
- 🔬 Advanced simulation features with oscilloscope
- ⚡ Responsive developer with frequent updates
- 🎨 Good visual design and layout
- 📱 Works well on iPad for on-the-go learning
- 🆓 Decent free version with good feedback

**Cons**

- 🐛 Frequent crashes and stability issues
- ❌ Missing essential components (LEDs, buttons, switches)
- 🖱️ Poor UI/UX with unintuitive controls
- 🔍 Zoom limitations - can't see full breadboard
- 🚫 Cannot move or rotate components after placement
- 💾 Circuits don't save properly
- ⚙️ Broken transistor library
- 📵 Doesn't work on iPhone
- 💰 Expensive subscription pricing ($40-60/year)
- 📖 No tutorials or documentation
- 🔧 Oscilloscope feature is buggy
- 🎯 Confusing for beginners

**Commonly reported bugs**

- App crashes on startup or when creating new breadboard
- App crashes when placing components
- App crashes when using oscilloscope
- App crashes when adding capacitors
- Circuits don't save between sessions
- SPICE models don't save
- Black screen or blank window on launch
- Breadboard displays then disappears
- Component inventory disappeared after update
- Cannot access components on iPhone
- Oscilloscope shows false resistor value errors
- Chips take a long time to load
- Cannot exit summary after requesting chips
- visionOS version crashes immediately
- File becomes unopenable after oscilloscope crash

**Most requested features**

- LEDs and LED indicators
- Push buttons and switches
- 555 timer IC
- Comparators in chip library
- Op-amps and more analog components
- H-bridges
- Motors
- Multimeter functionality
- In-app tutorials and documentation
- Electronics handbook with basic circuits
- Custom chip creation tutorial using SPICE
- Prebuilt circuit templates
- Better component library organization
- One-time purchase option instead of subscription
- Online video demonstrations
- AR experience features
- Physics engine integration

## Recent user reviews (10 of 78)

All indexed reviews: https://appshunter.io/ios/app/breadpad-spice-simulator/id6443904179/reviews.md

### 1/5 — No LED options?

*2026-06-18, version 1.204*

How about add in some simple LED options? I’m going to find an app that does.

### 2/5 — 説明が足りない

*2026-03-08*

説明書が欲しいです

### 3/5 — Not very user friendly

*2026-03-08, version 1.204*

I love the concept of this app, but it’s just not user friendly. I’d love to see a complete over view of what components you had. But it’s just not quite there yet. This app has potential, if only the developer listened to the users.

### 1/5 — Odd design choices!

*2025-12-30, version 1.203*

It's a virtual breadboard that works on iPads. A breadboard is smaller than an iPad, so I would expect there to be a view that lets you see the whole breadboard. Not the case here. The farthest you can zoom out is '100%' but that shows you less than half of the breadboard. You can see 26 pins of a 60-pin breadboard on a 13" iPad. The pins are 0.1" apart. So you're zoomed in on a 2.6" view of a 6" breadboad. And you can't zoom out any farther to see more of the breadboard. But you can zoom in even more if you want things bigger! You can zoom in to 250% and then you're only seeing a 1" section of the breadboard. Probably a great app for people with serious vision problems!

### 2/5 — Can’t do anything with it

*2025-12-16, version 1.203*

There is no component toolbox, so I can’t even get started.

### 1/5 — 问题一堆，太难用了

*2025-12-12*

一堆问题，这玩意还卖这么贵

### 1/5 — Terrible UI

*2025-10-19, version 1.203*

The UI is horrid. Unable to rotate parts after placement, unable to move start/end, and basically everything about the UI is garbage.

### 5/5 — Greatest

*2025-10-19, version 1.203*

So good

### 2/5 — Clunky.  Poor User interface.

*2025-09-28, version 1.202*

Close but no cigar.  This app has a lot of potential but at the moment, certainly not as user friendly as it needs to be to be acceptable and usable.

### 3/5 — Needs LEDs and buttons, transistors are broken

*2025-09-25, version 1.202*

Great breadboard simulator but it lacks LEDs, buttons, and the transistors are broken and the list of transistors is empty.

## Frequently asked questions about Breadpad

### What does Breadpad do?

Breadpad is an analog and digital electronics lab that allows you to design and simulate electronic circuits on an interactive digital breadboard. It features advanced SPICE simulation, a virtual oscilloscope, and a logic analyzer to help you analyze your designs with precision.

### What are the key features of Breadpad?

Key features include an interactive breadboard for wiring components, a vast library of integrated circuits and basic electronic parts with accurate models, the ability to create custom chips using SPICE, and instant rendering of circuit changes. It also supports importing PSPICE and LTSpice netlists and offers collaboration tools.

### How much does Breadpad cost?

Breadpad offers a free tier with core features for designing and simulating circuits. A premium subscription unlocks advanced capabilities such as infinite vector plotting, temperature sensitivity analysis, additional voltage source options, and data export to CSV for further analysis.

### What devices is Breadpad available on?

Breadpad is exclusively available on iPad, iPhone, Mac, and Apple Vision Pro, providing a versatile platform for circuit simulation across Apple devices.

### Can I use Breadpad for professional engineering?

Yes, Breadpad is designed for students, hobbyists, and professional engineers. Its advanced simulation features, including SPICE netlist manipulation, Monte Carlo simulations, and component tolerance fine-tuning, make it suitable for refining and optimizing existing systems and exploring new design principles.

## Version history (last 5 releases)

### 1.204 — 2026-03-05

This release improves zooming and scrolling behavior across a wide range of screen sizes.

### 1.203 — 2025-10-01

This release fixes a bug that prevented transistor device models from appearing in the list for selection.

### 1.202 — 2025-09-16

This release updates to provide compatibility with the latest ngspice (v45.2) and includes an updated app icon.

### 1.201 — 2025-04-08

This release reduces memory usage and fixes a crash that occasionally prevented users from dismissing overlays.

### 1.200 — 2025-04-01

This release improves the stability and performance of Monte Carlo simulations.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-27.*