Comparison

Python IDE & Jupyter vs ReasonML

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Python script and Jupyter notebook support
  • Offline code execution
  • Code completion and console
  • File and folder navigation
  • Data science library integration
  • Package management
Features
Read full description

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, Polars, DuckDB, Matplotlib, SciPy, Scikit-learn, OpenCV, pygame, and more - Enjoy painless package management: install any pure Python package with an intuitive package manager AI CODING ASSISTANT The assistant runs on your account or your key, not ours: sign in with your account or 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. GAMES AND EMULATORS pygame is built in: write games with touch controls, sound, and full-screen graphics, and play them on your device. Eight complete games ship as examples, alongside NES, Game Boy, and CHIP-8 emulators written in Python, each with a library of freely licensed homebrew games — play them, then open the code to see how they work. 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. SCRIPTS AND NOTEBOOKS Python scripts (.py) get snappy, intelligent code completion, a console with a full terminal emulator, and a built-in media viewer for code-generated images, plots, and web apps. Jupyter notebooks (.ipynb) keep live code, markdown text, plots, images, and LaTeX equations in one file, with every output embedded right in the document — a perfect playground for data analysis and computational science.

About

ReasonML

This app serves as a playground for ReasonML, allowing users to convert code between ReasonML and OCaml. It also compiles code to JavaScript and displays the JS console output directly within the application.

Highlights
  • ReasonML to OCaml conversion
  • OCaml to ReasonML conversion
  • Compile to JavaScript
  • View JS console output
Features
Read full description

Playground for ReasonML * Convert between ReasonML and OCaml * Compile to JS * View JS console output

Screenshots

Python IDE & Jupyter4 screens
ReasonML4 screens

Verdict

The call

The clearest difference is review sentiment: ReasonML at 100% against Python IDE & Jupyter's 59%. ReasonML also leads on in-app purchases (none vs 1) and update cadence (every 2 days vs monthly). Python IDE & Jupyter's advantage is ratings volume (1.1K vs 3) and chart position (#119 vs unranked). On price, ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Python IDE & Jupyter sells 1 one-off in-app purchase. ReasonML asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

ReasonML holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Python IDE & Jupyter has 1.1K ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 59% of Python IDE & Jupyter's written reviews are positive against 100% of ReasonML's.

UpkeepUpdate frequency

Python IDE & Jupyter ships an update monthly, ReasonML every 2 days. The most recent releases landed on October 7, 2026 and September 20, 2026 respectively.

Scorecard8 real differences · 3 level
Python IDE & Jupyter versus ReasonML: the parameters behind the verdict, then further details
ParameterPython IDE & JupyterReasonML
PriceFreeFree
Rating4.6 (1.1K ratings)5.0 (3 ratings) — better
Positive reviews58.8% of reviews100.0% of reviews — better
Number of ratings1.1K — better3
Update frequencyMonthlyEvery 2 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemiumFree — better
Best chart rank#119 — better—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.013.4 — better
Further details — not scored
Size991 MB8 MB
Age rating4+4+
DeveloperRational Matter LtdJacob Parker

Customer experience

Python IDE & Jupyter

All ratings1,107 ratings
Positive90.3%
Neutral2.3%
Negative7.3%
Written reviews381 reviews
Positive58.8%
Neutral10.5%
Negative30.7%

ReasonML

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

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

ReasonML

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Python IDE & Jupyter

One-time1
  • Juno Pro Unlock$39.99
None

ReasonML

No in-app purchases

Questions

Is Python IDE & Jupyter free?
Python IDE & Jupyter is free to download, with in-app purchases available.
Is ReasonML free?
ReasonML is free to download, with no in-app purchases.
Which has better reviews, Python IDE & Jupyter or ReasonML?
ReasonML is rated higher. Python IDE & Jupyter averages 4.6 out of 5 from 1.1K ratings, while ReasonML averages 5.0 from 3 ratings.
Do Python IDE & Jupyter or ReasonML have ads?
Neither Python IDE & Jupyter nor ReasonML shows ads.
Which is updated more often, Python IDE & Jupyter or ReasonML?
Python IDE & Jupyter ships an update monthly, and ReasonML every 2 days. Most recently, Python IDE & Jupyter was updated on October 7, 2026 and ReasonML on September 20, 2026.

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