Comparison

Carnets vs Bluetooth Controller BT/LE

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

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
Read full description

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.

About

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.

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
Read full description

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

Carnets4 screens
Bluetooth Controller BT/LE4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard4 real differences · 7 level
Carnets versus Bluetooth Controller BT/LE: the parameters behind the verdict, then further details
ParameterCarnetsBluetooth Controller BT/LE
PriceFreeFree
Rating4.6 (323 ratings)5.0 (1 ratings) — better
Positive reviews78.7% of reviews—
Number of ratings323 — better1
Update frequencyEvery 2 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
Best chart rank#114 — better#166
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.013.0 — better
Further details — not scored
Size1.4 GB22 MB
Age rating17+4+
DeveloperNicolas HolzschuchAlper Vural

Customer experience

Carnets

All ratings323 ratings
Positive88.5%
Neutral4.0%
Negative7.4%
Written reviews315 reviews
Positive78.7%
Neutral7.0%
Negative14.3%

Bluetooth Controller BT/LE

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

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

None

Carnets

No in-app purchases

None

Bluetooth Controller BT/LE

No in-app purchases

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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