Carnets vs Bluetooth Controller BT/LE
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Carnets
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.
- 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
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Jupyter notebooks are a powerful tool used in education and research. You can write small snippets of Python code and observe the result on screen, combine with paragraphs of text, using Markdown. Carnets provides a complete, stand-alone, implementation of Jupyter notebooks. Everything runs on your device, using the embedded Python interpreter; you do not need an internet connection. You can chose between Jupyter notebooks and the more advance Jupyterlab using Settings. Numpy, Sympy, Matplotlib, Pandas, lxml, bokeh, nbextensions (including ipywidgets) and many other packages are pre-installed. To see the full list of installed packages, type "%pip list" in a code window. You can add more packages using "%pip install packageName", but only if they are pure Python. If you need scipy, seaborn or scikit-learn, please use our other App, "Carnets - Jupyter (with scipy)". You can share your notebooks with other apps and also open notebooks or directories managed by other apps. Partial list of installed packages: astropy, babel, bokeh, cryptography, cvxopt, Fiona, geopandas, geopy, lxml, matplotlib, numpy, openCV, pandas, pillow, pyFFTW, pyproj, rasterio, regex, shapely, sympy, wordcloud.
Bluetooth Controller BT/LE
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.
- 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
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Easily test and control your Bluetooth projects with this versatile app, supporting Bluetooth Low Energy (BLE) communication. Ideal for developers and hobbyists working with Bluetooth-enabled devices, this app makes connecting and testing a breeze. BLE Mode: Optimized for smartphones, smartwatches, ESP modules, and custom BLE devices. Leverage Bluetooth Low Energy (BLE) for low-power, efficient device interactions, ideal for IoT projects and wearable tech. Gamepad Mode: Includes terminal modes and various data transfer features for Bluetooth-enabled gamepads and controllers. Easily manage and interact with compatible devices for enhanced control and functionality.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Carnets | Bluetooth Controller BT/LE |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (323 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 78.7% of reviews | — |
| Number of ratings | 323 — better | 1 |
| Update frequency | Every 2 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Best chart rank | #114 — better | #166 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 1.4 GB | 22 MB |
| Age rating | 17+ | 4+ |
| Developer | Nicolas Holzschuch | Alper Vural |
Customer experience
Carnets
Bluetooth Controller BT/LE
Bugs and requests
Carnets
Reported bugs
4 issues- Crashes and freezes
- Issues with saving and loading notebooks
- Problems with running scripts and notebooks
- Incompatibility with newer iOS versions
Requested features
5 requests- 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
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Carnets
No in-app purchases
Bluetooth Controller BT/LE
No in-app purchases
Questions
Is Carnets free?
Is Bluetooth Controller BT/LE free?
Which has better reviews, Carnets or Bluetooth Controller BT/LE?
Do Carnets or Bluetooth Controller BT/LE have ads?
Which is updated more often, Carnets or Bluetooth Controller BT/LE?
Which is more popular, Carnets or Bluetooth Controller BT/LE?
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