# Carnets vs Breadpad

The clearest difference is review sentiment: Carnets at 78% against Breadpad's 33%. Carnets also leads on rating (4.6 vs 3.9) and in-app purchases (none vs 3). Breadpad's advantage is update cadence (fortnightly vs monthly). On price, ratings volume, ads and chart position there is nothing between them.

Both are free to download. Breadpad sells 3 in-app purchases, starting at $4.99 per month. Carnets asks for nothing beyond the download.

Carnets holds the better App Store score, 4.6 against 3.9. Both are backed by a comparable volume of ratings — 321 and 167 respectively. Written reviews point the same way: 78% of Carnets's written reviews are positive against 33% of Breadpad's.

Carnets ships an update monthly, Breadpad fortnightly. Both last shipped on October 25, 2026.

## The numbers

| Metric | Carnets | Breadpad |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (321 ratings)](https://appshunter.io/ios/app/carnets-jupyter/id1450994949/reviews)** | [3.9 (167 ratings)](https://appshunter.io/ios/app/breadpad-spice-simulator/id6443904179/reviews) |
| Number of ratings | **321** | 167 |
| Positive reviews | **78.4% of reviews** | 33.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Fortnightly** |
| Monetization | **Free** | Freemium |
| Best chart rank | **#47** | #127 |
| Size | 1.4 GB | 63 MB |
| Requires iOS | **14.0** | 18.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, Mac, Vision Pro** |
| Age rating | 17+ | 4+ |
| Developer | [Nicolas Holzschuch](https://appshunter.io/developer/1450994948) | [FreshBizOpps, LLC](https://appshunter.io/developer/1506039373) |

## What reviewers say

### Carnets

[App page](https://appshunter.io/ios/app/carnets-jupyter/id1450994949)

**Currently charting:** #47 Top Free · Developer Tools (US App Store)

This app offers a standalone Jupyter notebook environment for creating and running code snippets, combining them with text and Markdown. It includes pre-installed scientific packages and allows for offline use, making it ideal for education and research.

**Highlights:** Standalone Jupyter notebook implementation, Embedded Python interpreter, Offline functionality, Pre-installed scientific packages, Supports Jupyterlab, Package installation via %pip, Notebook sharing and opening

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Excellent app for coding on iPad
- 👍 Convenient for learning and coding on the go
- 🚀 Works just like Jupyter Notebook on desktop
- 👍 Helpful for self-learning Python
- 👍 Useful for data science and machine learning

**What reviewers complain about**

- 🐛 Bugs and stability issues
- 🔋 Battery drain and overheating
- 🔒 Unauthorized access to photo library
- 🐛 Issues with importing certain libraries like SciPy and Scikit-learn

**Reported bugs**

- Crashes and freezes
- Issues with saving and loading notebooks
- Problems with running scripts and notebooks
- Incompatibility with newer iOS versions

**Requested features**

- Add support for SciPy, Scikit-learn, and other scientific computing libraries
- Improve file management and integration with cloud storage services
- Implement split-screen or multi-window support
- Add more keyboard shortcuts and customization options
- Improve error handling and provide more detailed error messages


### Breadpad

[App page](https://appshunter.io/ios/app/breadpad-spice-simulator/id6443904179)

**Currently charting:** #127 Top Grossing · Developer Tools (US App Store)

Design and simulate electronic circuits on an interactive digital breadboard. Analyze designs with virtual oscilloscopes and logic analyzers, and perform precise SPICE netlist simulations. Offers a free tier with core features and a premium subscription for advanced analysis and export.

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

**Features:** Game Controller support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Breadpad Subscription | $4.99 | per month |
| Annual Breadpad Subscription | $39.99 | per year |
| Lifetime Premium | $139.99 | one-time |

**What reviewers like**

- 💡 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

**What reviewers complain about**

- 🐛 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

**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

**Requested features**

- LEDs and LED indicators
- Push buttons and switches
- 555 timer IC
- Comparators in chip library
- Op-amps and more analog components


## Frequently asked questions

### Is Carnets free?

Carnets is free to download, with no in-app purchases.

### Is Breadpad free?

Breadpad is free to download, with in-app purchases available.

### Which has better reviews, Carnets or Breadpad?

Carnets is rated higher. Carnets averages 4.6 out of 5 from 321 ratings, while Breadpad averages 3.9 from 167 ratings.

### Do Carnets or Breadpad have ads?

Neither Carnets nor Breadpad shows ads.

### Which is updated more often, Carnets or Breadpad?

Carnets ships an update monthly, and Breadpad fortnightly. Most recently, Carnets was updated on October 25, 2026 and Breadpad on October 25, 2026.

### Which is more popular, Carnets or Breadpad?

Carnets currently peaks at #47 in the App Store charts, and Breadpad at #127. Chart position reflects recent download velocity rather than total install base.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*