PyNotebook vs Skulk Operator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PyNotebook
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PyNotebook runs Python and Jupyter (IPython) notebooks inside your iPhone. Open an .ipynb file, edit the cells, press Run, and the output appears under each cell the way it does on a desktop. THREE PLACES TO RUN YOUR CODE Local Python runs on the device itself, using a Python interpreter compiled to WebAssembly and bundled in the app. On-device Linux runs your code using your own Linux Emulator app, which gives you close to a real CPython shell on the phone. Remote SSH runs it on your own Mac, PC, Raspberry Pi, or Linux server. The phone stays the editor and the other machine does the work. The kernel chip in the toolbar switches between them. PACKAGES Write "!pip install pandas" in a cell to install a pure-Python package from PyPI. numpy, pandas and matplotlib download on first import and stay cached afterwards. iSH and Remote SSH run standard CPython, so pip there installs anything it can build, including packages with native code. CHARTS AND MATH matplotlib figures appear inline as images. Tap one to zoom. Markdown cells render LaTeX. EDITING Python syntax highlighting with indentation guides, and a Backspace that removes a whole indent level. Long-press a cell, or tap the More button, to run, copy, duplicate, move, or delete it. Drag a cell by its index pill to reorder it. FILES Opens .ipynb, .py, .md and .zip. A ZIP or folder of notebooks and their images imports as one project. Any notebook exports to the Files app as a .ipynb or as a plain .py script. Edits save as you type, so there is no save button to remember. PRIVACY The app collects nothing and has no analytics.
Skulk Operator
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Skulk Operator is the native remote control for a user-owned Skulk distributed AI cluster. Pair the app with a cluster to: • View cluster health, topology, memory utilization, and node status. • Browse the model catalog and the cluster’s canonical model store. • Inspect model availability across nodes and preview recommended placement. • Place models on compatible compute and stop running instances. • Chat with ready text models while keeping conversation history on this device. • Track downloads, placement, loading, and other operator activity. • Review connection status and paired devices. The normal remote path uses an end-to-end encrypted relay. Foxlight’s relay forwards encrypted traffic without access to operator commands, model details, prompts, or responses. Credentials use platform secure storage, and conversation history remains device-local. Skulk Operator does not download or run AI models on your iPhone or iPad. A separately installed and running Skulk cluster is required. Skulk is free and open-source software.
Screenshots
Verdict
The clearest difference is iOS requirement: PyNotebook at 13.0 against Skulk Operator's 16.4. On price, ads, in-app purchases and device support 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.
| Parameter | PyNotebook | Skulk Operator |
|---|---|---|
| Price | Free | Free |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 13.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 45 MB | 50 MB |
| Age rating | 4+ | 12+ |
| Developer | JALAL ZAINADDIN | FoxlightAI Inc. |
In-app purchases
PyNotebook
No in-app purchases
Skulk Operator
No in-app purchases









