Python IDE & Jupyter vs MarkD

Zero-setup Python IDE that runs your code offline, an AI coding assistant, and a developer toolbox — in a first-class citizen app for iPad and iPhone. Juno is designed to cover all your Python coding needs, supporting both Python scripts (.py) and Jupyter notebooks (.ipynb) — a document format focused on applying Python to data analysis and computational science. FREE FEATURES - Navigate and manage files and folders, quickly preview documents and media - Browse and edit Jupyter notebooks in a powerful, customizable notebook editor with beautifully rendered previews — editing is free - Write and edit code sources, scripts, JSON, XML, and other text-based formats — one versatile editor for code and text alike, with syntax highlighting - Add quick access bookmarks for file system locations outside the app's sandbox, or simply open documents in place PRO FEATURES Only one thing in Juno is Pro: running code. Even that is free to try — a generous trial allowance lets you run notebooks, scripts, projects, and the REPL before you buy. After the trial, running code unlocks with a one-time Pro purchase — not a subscription. - Run Jupyter notebooks, Python scripts, and whole projects locally with the built-in Python 3.13 interpreter and a full suite of up-to-date, preinstalled scientific and data packages — entirely offline - Explore interactively in a Python REPL — open a standalone prompt, or drop into it after running a script or project to keep exploring what it defined - Search the variables, functions, and imports in your session with the Object Inspector — no need to print each one - Open any folder as a project: file tree, multiple editor tabs, run any script, with a coding assistant aware of the whole project - Keep side outputs — Preview, Browser, Console, Object Inspector — open as side-by-side tabs in an output sidebar - View local web servers and HTML your code produces in a built-in browser with developer debug tools - Long-running scripts and Jupyter sessions keep going in the background - Automate with Shortcuts and Siri: App Intents run a Python file, run Python code, or open a file — pass arguments and files, capture output, and chain actions - Leverage powerful data analysis, machine learning and developer tools: NumPy, pandas, Matplotlib, SciPy, Scikit-learn, OpenCV, LXML, and more - Enjoy painless package management: install any pure Python package with an intuitive package manager AI CODING ASSISTANT The assistant runs on your key, not ours: add your OpenAI, Anthropic, or Gemini API key, and requests go straight from your device to your provider. You control what you spend and share — Juno never takes a cut. PYTHON MEETS iOS Reach native iOS APIs straight from Python with the built-in juno modules: clipboard, Keychain, device info, location, motion sensors, contacts, reminders, photos, sound, notifications, sharing, and Bluetooth. Show native alerts and pickers, present full-screen image, video, and web previews, or call into UIKit, Foundation, and any Objective-C framework via the Objective-C bridge. PYTHON SCRIPTS Python scripts are plain-text Python source code files with a .py extension. Juno lets you work on these with snappy, intelligent code completion, a console with full terminal emulator support, and a built-in media viewer for code-generated images, plots, web apps, and more — executed by the embedded Python interpreter, locally on your iPhone or iPad and completely offline. JUPYTER NOTEBOOKS A Jupyter notebook is a versatile document format that stores live code, markdown text, plots, images, and LaTeX equations in a single .ipynb file. Notebooks keep a record of every input and output of an interactive session, embedding rich output (HTML, images, video, plots) right in the document — a perfect playground for data analysis, machine learning, and computational science, and Juno makes working with them a breeze!

The Markdown reader for developers who think on the go. Open any .md file — README, design doc, API spec — and see it rendered in seconds. Code blocks highlighted in 40+ languages, Mermaid diagrams drawn automatically, HTML rendered cleanly. No setup, no clutter. iPhone in your pocket, ideas in your head. MarkD turns waiting time at the bus stop, the elevator, the coffee line into useful reading time. — Clean Markdown Rendering Headings (H1–H6), bold, italic, strikethrough, tables, blockquotes, links, images, ordered and unordered lists, checkboxes — all standard Markdown syntax fully supported. Both light and dark modes render with comfortable typography. Long documents scroll naturally in one continuous flow, with no screen transitions interrupting your reading. Code Syntax Highlighting Swift, Objective-C, Python, JavaScript, TypeScript, Go, Rust, Java, Kotlin, C, C++, C#, Ruby, PHP, Shell, SQL, HTML, CSS, JSON, YAML, and 40+ more languages are supported. Code blocks are highlighted with language-appropriate colors so structure is clear at a glance. Dark mode applies a low-fatigue color theme automatically. Mermaid Diagrams Mermaid code blocks inside Markdown are automatically detected and rendered as visual diagrams. Flowcharts, sequence diagrams, class diagrams, state diagrams, ER diagrams, and Gantt charts are all supported. Especially useful when reading system design documents, API flow docs, or database schemas. Folders & Tags Organize saved documents into folders and attach tags for easy retrieval. Filter by file type (Markdown, HTML, Swift, Python, JSON, and more) or search by title to instantly find any file. Use favorites to keep frequently viewed documents close at hand. Wide File Format Support Beyond .md and .markdown, MarkD opens .html, .swift, .py, .js, .ts, .go, .rs, .java, .kt, .c, .cpp, .cs, .json, .yaml, .yml, .txt, .sh, .rb, and virtually every text-based file format developers work with daily. Both the file extension and content are analyzed to automatically select the best rendering method. Files App Integration Long-press any file in the iOS Files app, choose "Open in MarkD," and it's imported instantly. Works with iCloud Drive, local storage, and third-party cloud storage. Duplicate files are never saved, keeping your library clean. Share Extension Share text or a URL from Safari, Notes, Slack, or any other app using the share sheet, and it's saved directly to your MarkD library. No need to open the app first — save as you read, in one natural motion. You can also share saved documents directly to other apps. Reading Info & HTML Support Word count and estimated reading time are automatically calculated when you open a document. HTML files are rendered in a built-in web view, with dark mode meta tags injected automatically. — Built for - Developers who frequently read READMEs and open source documentation - Engineers who want to view Markdown files from GitHub or GitLab on mobile - Writers who draft technical blog posts in Markdown and want to preview them - Team members who reference wikis, API docs, and design documents on the go - Anyone who wants to read documents containing code in a clean, focused environment MarkD is focused purely on reading documents well — no unnecessary features, no clutter. Experience the simplicity of opening it for the first time, and the satisfaction of a well-organized library as it grows.