Comparison

Carnets vs Arrayground

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 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.

Highlights
  • 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
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. 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.

About

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.

Highlights
  • Mobile REPL interface
  • CBQN library integration
  • ngn/k library integration
  • SwiftUI application
  • Works on iPhone and iPad
Features
Read full description

A SwiftUI application to interface with CBQN and ngn/k libraries into a working repl.

Screenshots

Carnets4 screens
Arrayground4 screens

Verdict

The call

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

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

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.

UpkeepUpdate frequency

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.

Scorecard5 real differences · 5 level
Carnets versus Arrayground: the parameters behind the verdict, then further details
ParameterCarnetsArrayground
PriceFreeFree
Rating4.6 (87 ratings)4.8 (4 ratings) — better
Positive reviews81.5% of reviews100.0% of reviews — better
Number of ratings87 — better4
Update frequencyEvery 6 weeksEvery 5 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS14.0 — better16.0
Further details — not scored
Size2.1 GB6 MB
Age rating17+17+
DeveloperNicolas HolzschuchAsakura

Customer experience

Carnets

All ratings87 ratings
Positive88.5%
Neutral5.7%
Negative5.7%
Written reviews146 reviews
Positive81.5%
Neutral9.6%
Negative8.9%

Arrayground

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

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

None

Carnets

No in-app purchases

None

Arrayground

No in-app purchases

Questions

Is Carnets free?
Carnets is free to download, with no in-app purchases.
Is Arrayground free?
Arrayground is free to download, with no in-app purchases.
Which has better reviews, Carnets or Arrayground?
Arrayground is rated higher. Carnets averages 4.6 out of 5 from 87 ratings, while Arrayground averages 4.8 from 4 ratings.
Do Carnets or Arrayground have ads?
Neither Carnets nor Arrayground shows ads.
Which is updated more often, Carnets or Arrayground?
Carnets ships an update every 6 weeks, and Arrayground every 5 days. Most recently, Carnets was updated on October 18, 2026 and Arrayground on October 14, 2026.

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