Python IDE & Jupyter vs Save Code
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Python IDE & Jupyter
This app provides a full-featured Python coding environment for mobile devices. It supports both Python scripts and Jupyter notebooks, offering offline execution, code completion, and access to popular data science libraries.
- Python script and Jupyter notebook support
- Offline code execution
- Code completion and console
- File and folder navigation
- Data science library integration
- Package management
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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!
Save Code
Organize your development workflow by creating projects, tracking builds with version and stability details, and saving code snippets for quick access. Features include search, sorting, and pinning for efficient management. Unlock advanced capabilities with a Pro subscription.
- Project and build tracking
- Code snippet saving
- Search and sort functionality
- Pinning for important items
- Customizable editor settings
- Pro features for unlimited use
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Create projects, add builds, and attach code snippets to keep your workflow structured and accessible at all times. Projects & Builds: Start with a project and create builds that capture versions, numbers, and stability at a glance. Snippets: Save important code or notes directly within each build for fast reference. Search & Sort: Quickly find what you need with built-in search and sorting by build number, version, or stability. Pinning: Keep your most important projects and builds at the top with simple pin/unpin actions. Customization: Adjust editor font size, auto-formatting, and header options to match your workflow. Pro Features: Unlock unlimited projects, builds, and snippets with SwiftShelf Pro, along with advanced export and productivity tools. BuildBox is designed to be fast, intuitive, and reliable, so you can focus on building without losing track of your work. Whether you’re managing a single project or a library of builds, it provides the clarity and structure you need.
Screenshots
Verdict
The clearest difference is rating: Python IDE & Jupyter at 4.6 against Save Code's 1.0. Python IDE & Jupyter also leads on ratings volume (1.1K vs 1) and update cadence (every 5 weeks vs every 6 months). 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. Python IDE & Jupyter sells 1 one-off in-app purchase and Save Code sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Python IDE & Jupyter holds the better App Store score, 4.6 against 1.0. That said, the two scores are not equally well evidenced: Python IDE & Jupyter has 1.1K ratings behind it against 1, so its average is the more settled of the two.
Python IDE & Jupyter ships an update every 5 weeks, Save Code every 6 months. The most recent releases landed on September 23, 2026 and September 22, 2026 respectively.
| Parameter | Python IDE & Jupyter | Save Code |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (1.1K ratings) — better | 1.0 (1 ratings) |
| Positive reviews | 58.8% of reviews | — |
| Number of ratings | 1.1K — better | 1 |
| Update frequency | Every 5 weeks — better | Every 6 months |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | Freemium |
| Best chart rank | #129 — better | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 — better | 18.5 |
| Further details — not scored | ||
| Size | 661 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | Rational Matter Ltd | Dimitry French |
Customer experience
Python IDE & Jupyter
Save Code
Bugs and requests
Python IDE & Jupyter
Reported bugs
3 issues- Crashes when running certain code or opening files
- Unreliable file management and syncing
- Compatibility issues with newer iOS versions
Requested features
4 requests- Add support for more Python libraries and frameworks (e.g., TensorFlow, Keras, Scikit-learn)
- Improve integration with external file storage (Google Drive, Dropbox, etc.)
- Implement cell collapsing and text size adjustment
- Add an interactive REPL terminal
Save Code
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Python IDE & Jupyter
- Juno Pro Unlock$39.99
Save Code
- BuildBox Pro$4.99









