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Best Rational Matter Apps

250+ iOS apps curated and reviewed

4.5 avg rating
19 free apps
Updated September 2026

Python IDE & Jupyter is the household name in rational matter, but it's far from the only option. We track 250+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.

Compare top Rational Matter Apps (September 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Python IDE & Jupyter – JunoPython IDE & Jupyter – JunoFree was $17.994.6★ (1.1K)NoYesSep 2026
2Learn to Code – TinkerstellarLearn to Code – TinkerstellarFree4.9★ (601)NoYesSep 2026
3Juno Connect: Jupyter ClientJuno Connect: Jupyter Client$4.99 was $9.994.6★ (633)NoNoSep 2026
4Menards®Menards®Free4.8★ (213K)NoNoSep 2026
5App Store ConnectApp Store ConnectFree4.7★ (15K)NoNoSep 2026
6Apple StoreApple StoreFree3.5★ (168K)NoNoSep 2026
7SparkPlug AppSparkPlug AppFree5.0★ (6)NoNoAug 2026
8Power AppsPower AppsFree4.9★ (23K)NoNoSep 2026

Top Picks for Rational Matter

Python IDE & Jupyter – Juno#1

Python IDE & Jupyter – Juno by Rational Matter Ltd

Code editor, notebooks & AI
Editor's Choice
🛠️ Developer Tools
4.6😐(1.1K ratings)
FreeIn-App Purchases
#28in Developer Tools
Python IDE & Jupyter – Juno screenshot 1
Python IDE & Jupyter – Juno screenshot 2
Python IDE & Jupyter – Juno screenshot 3
Python IDE & Jupyter – Juno screenshot 4
Python IDE & Jupyter – Juno screenshot 5
Python IDE & Jupyter – Juno screenshot 6

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.

What We Love

  • 🚀 Powerful Python app for iPhone and iPad
  • 🚀 Excellent for data science and machine learning
  • 🚀 Impressive Jupyter notebook performance
  • 👍 Sleek and elegant interface
  • 👍 Convenient for on-the-go coding
  • 👍 Supports full Jupyter notebooks

Room to Improve

  • 🔒 Requires paid subscription to access full functionality
  • 🐛 Crashes frequently, especially when switching apps
  • 🐛 Buggy behavior with external file storage
  • 🐛 Inability to install many required packages
  • 🐛 Outdated Python version (3.6)
Learn to Code – Tinkerstellar#2

Learn to Code – Tinkerstellar by Rational Matter Ltd

Offline Python Tutorials
Strong Contender
📚 Education
4.9😊(601 ratings)
FreeIn-App Purchases
Learn to Code – Tinkerstellar screenshot 1
Learn to Code – Tinkerstellar screenshot 2
Learn to Code – Tinkerstellar screenshot 3
Learn to Code – Tinkerstellar screenshot 4
Learn to Code – Tinkerstellar screenshot 5
Learn to Code – Tinkerstellar screenshot 6

Learn to code with interactive, hands-on Python labs that run directly on your device. Practice with real code, data, and APIs without needing internet or setup. Progress from basics to advanced topics like data analysis and machine learning at your own pace.

What We Love

  • 👍 Intuitive and user-friendly interface
  • 📚 Clear, well-written lessons and explanations
  • 💻 Ability to run code directly in the app
  • 🌐 Works offline seamlessly
  • 🎯 Bite-sized, digestible content
  • 💰 Affordable pricing for premium courses
  • 🎨 Beautiful, minimal design
  • ⚡ Smooth performance on iPad
  • 🔄 Great for beginners and those refreshing skills
  • 📖 Comprehensive coverage of Python and ML topics

Room to Improve

  • 🐛 Crashes on newer devices (M4 iPad Pro, Apple Vision Pro, iPadOS 18)
  • ❌ Limited interactivity and hands-on exercises
  • 💳 Unclear pricing structure and hidden payment walls
  • 🔥 Performance issues (app runs warm on M1 iPad)
  • 📝 Lacks graded exercises and code validation
  • ⚠️ Some code examples don't run properly
  • 🚫 No clear starting point or learning path
  • ⏱️ App appears unmaintained with infrequent updates
  • 🌍 Only available in English
Juno Connect: Jupyter Client#3

Juno Connect: Jupyter Client by Rational Matter Ltd

Cloud Coding/Programming IDE
Worth Considering
🛠️ Developer Tools
4.6😊(633 ratings)
$4.99
#84in Developer Tools
Juno Connect: Jupyter Client screenshot 1
Juno Connect: Jupyter Client screenshot 2
Juno Connect: Jupyter Client screenshot 3
Juno Connect: Jupyter Client screenshot 4

Access powerful cloud-based computational environments from your mobile device. Connect to remote Jupyter servers, utilize extensive computing resources, and enjoy a full-featured code editor on your iPhone or iPad.

What We Love

  • 🚀 Great app for Jupyter notebooks
  • 👍 Clean, modern, and touch-friendly design
  • 🚀 Stable and reliable connection to remote servers
  • 💡 Allows coding on the go with iPad
  • 👍 Responsive developer support

Room to Improve

  • 🐛 Bugs with cell execution and output display
  • 🔒 Lacks support for Jupyter Lab and other file types
  • 👎 Limited functionality in free version
  • 👎 Keyboard and navigation issues in landscape mode
  • 🐛 Unreliable connection to some remote servers

More Rational Matter apps to explore

FAQ about Rational Matter

What are the best rational matter apps for iPhone?
Python IDE & Jupyter – Juno tops our rational matter apps ranking as of September 2026, with a 4.6-star average from 1.1K App Store ratings, and it's free to download.
Yes — 19 of the top rational matter apps we rank are free to download, including Python IDE & Jupyter – Juno and Learn to Code – Tinkerstellar.
Python IDE & Jupyter – Juno has no ads and offers in-app purchases, according to its App Store listing as of September 2026.
We track 250+ rational matter apps on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.
This app provides a comprehensive Python coding environment for your mobile device. You can write and execute Python scripts (.py) and Jupyter notebooks (.ipynb) offline. It includes features like code completion, a console with terminal support, and integration with popular data science libraries.
This application is designed for iPad and iPhone, providing a first-class citizen app experience on both platforms. It leverages the capabilities of these devices for a seamless coding workflow.