Carnets vs Arrayground
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Carnets
This app offers a full Jupyter notebook experience on your device, ideal for education and research. It includes scientific computation packages like SciPy and scikit-learn, allowing you to write and run Python code offline. Notebooks can be shared and opened from other applications.
- Offline Jupyter notebook execution
- Includes SciPy, scikit-learn, and Seaborn
- Embedded Python interpreter
- Markdown support for text
- Package management with %pip
- Notebook sharing and import
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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. Compared to the standard version (Carnets), this app adds several packages targeted for scientific computation and learning: scipy, sklearn, seaborn and coremltools. You can switch between standard notebooks and the more modern jupyterlab using the Settings app. Of course, all the packages included with the standard app are present too: numpy, simply, matplotlib... 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. 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, cartopy, cryptography, cvxopt, Fiona, geopandas, geopy, gym, inequality, libpysal, lxml, mapclassify, matplotlib, networkx, nltk, numpy, openCV, pandas, parso, pillow, pyFFTW, pyproj, qutip, rasterio, regex, Rtree, scikit-learn, scipy, seaborn, segregation, shapely, soupsieve, spopt, statsmodels, sympy, wordcloud.
Arrayground
This app provides a mobile interface for interacting with CBQN and ngn/k libraries. It functions as a REPL (Read-Eval-Print Loop) for developers working with these specific programming environments on their mobile devices.
- Mobile REPL interface
- CBQN library integration
- ngn/k library integration
- SwiftUI application
- Works on iPhone and iPad
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A SwiftUI application to interface with CBQN and ngn/k libraries into a working repl.
Screenshots
Verdict
The clearest difference is update cadence: Arrayground at every 5 days against Carnets's every 6 weeks. Arrayground also leads on review sentiment (100% vs 82%) and rating (4.8 vs 4.6). Carnets's advantage is ratings volume (87 vs 4) and iOS requirement (14.0 vs 16.0). 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.
Arrayground holds the better App Store score, 4.8 against 4.6. That said, the two scores are not equally well evidenced: Carnets has 87 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 82% of Carnets's written reviews are positive against 100% of Arrayground's.
Carnets ships an update every 6 weeks, Arrayground every 5 days. The most recent releases landed on October 18, 2026 and October 14, 2026 respectively.
| Parameter | Carnets | Arrayground |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (87 ratings) | 4.8 (4 ratings) — better |
| Positive reviews | 81.5% of reviews | 100.0% of reviews — better |
| Number of ratings | 87 — better | 4 |
| Update frequency | Every 6 weeks | Every 5 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 14.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 2.1 GB | 6 MB |
| Age rating | 17+ | 17+ |
| Developer | Nicolas Holzschuch | Asakura |
Customer experience
Carnets
Arrayground
Bugs and requests
Carnets
Reported bugs
3 issues- Unable to create new notebooks
- Incompatible with older iOS versions
- Line breaking issues with external keyboard
Requested features
5 requests- Add support for Tensorflow, XGBoost, LightGBM
- Enable running code in .py files
- Improve stability and performance
- Add support for R kernel
- Provide better file management options
Arrayground
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Carnets
No in-app purchases
Arrayground
No in-app purchases









