# Carnets vs Bluetooth Controller BT/LE

The clearest difference is rating: Bluetooth Controller BT/LE at 5.0 against Carnets's 4.6. Bluetooth Controller BT/LE also leads on update cadence (every 3 weeks vs every 2 months) and iOS requirement (13.0 vs 15.0). Carnets's advantage is ratings volume (323 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Bluetooth Controller BT/LE holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Carnets has 323 ratings behind it against 1, so its average is the more settled of the two.

Carnets ships an update every 2 months, Bluetooth Controller BT/LE every 3 weeks. The most recent releases landed on November 15, 2026 and November 14, 2026 respectively.

## The numbers

| Metric | Carnets | Bluetooth Controller BT/LE |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (323 ratings)](https://appshunter.io/ios/app/carnets-jupyter/id1450994949/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/bluetooth-controller-btle/id6739386030/reviews)** |
| Number of ratings | **323** | 1 |
| Positive reviews | 78.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Free | Free |
| Best chart rank | **#114** | #166 |
| Size | 1.4 GB | 22 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Nicolas Holzschuch](https://appshunter.io/developer/1450994948) | [Alper Vural](https://appshunter.io/developer/1728214585) |

## What reviewers say

### Carnets

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

**Currently charting:** #114 Top Free · Developer Tools (US App Store)

This app provides a standalone Jupyter notebook environment for writing and executing code snippets, combining them with text and Markdown. It runs entirely on your device, offering offline access to pre-installed scientific and data science packages. Share and open notebooks with other applications.

**Highlights:** Standalone Jupyter notebook implementation, Offline execution with embedded Python, Pre-installed scientific packages (NumPy, Pandas, Matplotlib), Support for Jupyterlab, Package management via %pip, Notebook sharing and import/export

**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


### Bluetooth Controller BT/LE

[App page](https://appshunter.io/ios/app/bluetooth-controller-btle/id6739386030)

**Currently charting:** #166 Top Free · Developer Tools (US App Store)

This app allows developers and hobbyists to test and control Bluetooth devices, particularly those using Bluetooth Low Energy (BLE). It offers modes for BLE communication with various devices and for interacting with Bluetooth-enabled gamepads and controllers.

**Highlights:** Bluetooth Low Energy (BLE) testing, Control Bluetooth-enabled gamepads, Terminal modes for data transfer, Support for ESP modules and custom devices, Optimized for smartphones and smartwatches

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

**In-app purchases:** none


## Frequently asked questions

### Is Carnets free?

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

### Is Bluetooth Controller BT/LE free?

Bluetooth Controller BT/LE is free to download, with no in-app purchases.

### Which has better reviews, Carnets or Bluetooth Controller BT/LE?

Bluetooth Controller BT/LE is rated higher. Carnets averages 4.6 out of 5 from 323 ratings, while Bluetooth Controller BT/LE averages 5.0 from 1 ratings.

### Do Carnets or Bluetooth Controller BT/LE have ads?

Neither Carnets nor Bluetooth Controller BT/LE shows ads.

### Which is updated more often, Carnets or Bluetooth Controller BT/LE?

Carnets ships an update every 2 months, and Bluetooth Controller BT/LE every 3 weeks. Most recently, Carnets was updated on November 15, 2026 and Bluetooth Controller BT/LE on November 14, 2026.

### Which is more popular, Carnets or Bluetooth Controller BT/LE?

Carnets currently peaks at #114 in the App Store charts, and Bluetooth Controller BT/LE at #166. 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.*