PyNotebook vs Marshal Stack

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.

Marshal Stack is one screen for everything you have already shipped. Your apps in the App Store, the sites and APIs behind them, the servers you run yourself and the coding agents working on your projects — all read by one rule: green is fine, amber needs a look, red is down. WHAT IT WATCHES • App Store — rating, review count, latest version, and the release state: in review, rejected, live. • Sites and APIs — checked every minute, with the latency next to the result. A notification arrives when an address stops answering twice in a row, and again when it recovers. • Your own servers — CPU, memory, disk, load and the heaviest processes, reported by a small agent you install with one line on a machine you already own. • Cloud servers — connect a read-only Hetzner Cloud token and see your servers' status, CPU, disk and network next to the rest. • Alerts that say what to do, not only what broke — memory over the threshold, a process running from /tmp, a port that was not open yesterday. WAITING FOR YOU When an agent working on your project needs a decision, the question appears on Home and in a notification. Answer with one tap or a typed reply; risky actions ask you to unlock and confirm. The first answer wins everywhere. AGENT USAGE See how much your Claude Code agents used: the 5-hour and weekly usage limit, when it resets, and tokens by task, project, role and model over 7 or 30 days. YOUR KEYS, YOUR MACHINES Connect your own App Store Connect key, Hetzner token and GitHub repositories, or none at all. The server agent dials out over HTTPS: it opens no port, reads no files, touches no databases, and uninstalls with one command. There is no registration form. Sign in with GitHub, or just open the app and look around on sample data bundled inside it — no account, no keys, no network. ON THE WRIST The same three states on Apple Watch, plus your projects ranked worst first. A glance tells you whether anything needs you, and a tap opens the one thing that does. THIRD-PARTY SERVICES Marshal Stack works with services you connect yourself: GitHub (sign-in and repositories), App Store Connect (app ratings and release state), Hetzner Cloud (read-only server inventory), Trello and Telegram (optional task boards and alerts), and Claude Code (the coding agents whose questions and usage you see). Marshal Stack is an independent app and is not affiliated with, endorsed or sponsored by GitHub, Hetzner, Trello, Telegram or Anthropic. No ads, no third-party trackers.