# Python IDE & Jupyter vs Happy

The clearest difference is rating: Happy at 4.9 against Python IDE & Jupyter's 4.6. Happy also leads on review sentiment (72% vs 59%) and iOS requirement (15.1 vs 17.0). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. Python IDE & Jupyter sells 1 one-off in-app purchase and Happy sells 1 in-app purchase, starting at $19.99 per month. Whichever you choose, the download price is not the number that matters.

Happy holds the better App Store score, 4.9 against 4.6. Both are backed by a comparable volume of ratings — 1.1K and 1K respectively. Written reviews point the same way: 59% of Python IDE & Jupyter's written reviews are positive against 72% of Happy's.

Python IDE & Jupyter ships an update every 9 days, Happy weekly. Both last shipped on October 14, 2026.

## The numbers

| Metric | Python IDE & Jupyter | Happy |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (1.1K ratings)](https://appshunter.io/ios/app/python-ide-and-jupyter-juno/id1462586500/reviews) | **[4.9 (1K ratings)](https://appshunter.io/ios/app/happy-codex-and-claude-code-app/id6748571505/reviews)** |
| Number of ratings | **1.1K** | 1K |
| Positive reviews | 59.0% of reviews | **71.6% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 9 days | **Weekly** |
| Monetization | Freemium | Free with in-app purchases |
| Best chart rank | **#73** | #83 |
| Size | 991 MB | 98 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Rational Matter](https://appshunter.io/developer/1315744136) | [Bulka, LLC](https://appshunter.io/developer/1677403762) |

## What reviewers say

### Python IDE & Jupyter

[App page](https://appshunter.io/ios/app/python-ide-and-jupyter-juno/id1462586500)

**Currently charting:** #73 Top Grossing · Developer Tools, #144 Top Free · Developer Tools (US App Store)

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:** Family Sharing, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Juno Pro Unlock | $39.99 | one-time |

**What reviewers like**

- 🚀 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

**What reviewers complain about**

- 🔒 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)

**Reported bugs**

- Crashes when running certain code or opening files
- Unreliable file management and syncing
- Compatibility issues with newer iOS versions

**Requested features**

- 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


### Happy

[App page](https://appshunter.io/ios/app/happy-codex-and-claude-code-app/id6748571505)

**Currently charting:** #83 Top Free · Developer Tools (US App Store)

This app provides a secure mobile interface for AI coding assistants, allowing you to continue sessions and monitor progress from anywhere. It features end-to-end encryption and a zero-knowledge architecture for ultimate privacy. Seamlessly switch between desktop and mobile for uninterrupted AI coding.

**Highlights:** Seamless desktop and mobile session continuation, Push notifications for AI tasks, Offline access to conversation history, End-to-end encryption for code privacy, Real-time streaming of AI responses, Zero-knowledge architecture

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Plus Plus Monthly | $19.99 | per month |


## Frequently asked questions

### Is Python IDE & Jupyter free?

Python IDE & Jupyter is free to download, with in-app purchases available.

### Is Happy free?

Happy is free to download, with in-app purchases available.

### Which has better reviews, Python IDE & Jupyter or Happy?

Happy is rated higher. Python IDE & Jupyter averages 4.6 out of 5 from 1.1K ratings, while Happy averages 4.9 from 1K ratings.

### Do Python IDE & Jupyter or Happy have ads?

Neither Python IDE & Jupyter nor Happy shows ads.

### Which is updated more often, Python IDE & Jupyter or Happy?

Python IDE & Jupyter ships an update every 9 days, and Happy weekly. Most recently, Python IDE & Jupyter was updated on October 14, 2026 and Happy on October 14, 2026.

### Which is more popular, Python IDE & Jupyter or Happy?

Python IDE & Jupyter currently peaks at #73 in the App Store charts, and Happy at #83. Chart position reflects recent download velocity rather than total install base.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*