# Python IDE & Jupyter vs MermaidEditor

The clearest difference is review sentiment: Python IDE & Jupyter at 59% against MermaidEditor's 14%. Python IDE & Jupyter also leads on price (Free vs $3.99) and rating (4.6 vs 2.3). MermaidEditor's advantage is in-app purchases (none vs 1) and device support (4 vs 2). On update cadence, ads and chart position there is nothing between them.

Python IDE & Jupyter is free to download; MermaidEditor costs $3.99 up front. Python IDE & Jupyter sells 1 one-off in-app purchase. MermaidEditor asks for nothing beyond the download.

Python IDE & Jupyter holds the better App Store score, 4.6 against 2.3. That said, the two scores are not equally well evidenced: Python IDE & Jupyter has 1.1K ratings behind it against 10, 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 14% of MermaidEditor's.

Python IDE & Jupyter ships an update monthly, MermaidEditor every 3 weeks. The most recent releases landed on October 12, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Python IDE & Jupyter | MermaidEditor |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| Rating | **[4.6 (1.1K ratings)](https://appshunter.io/ios/app/python-ide-and-jupyter-juno/id1462586500/reviews)** | [2.3 (10 ratings)](https://appshunter.io/ios/app/mermaideditor/id1581312955/reviews) |
| Number of ratings | **1.1K** | 10 |
| Positive reviews | **58.9% of reviews** | 13.8% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | **Freemium** | Paid |
| Best chart rank | **#99** | #118 |
| Size | 991 MB | 125 MB |
| Requires iOS | 17.0 | **14.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Rational Matter Ltd](https://appshunter.io/developer/1315744136) | [基伟 徐](https://appshunter.io/developer/391905315) |

## What reviewers say

### Python IDE & Jupyter

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

**Currently charting:** #99 Top Free · Developer Tools, #103 Top Grossing · 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


### MermaidEditor

[App page](https://appshunter.io/ios/app/mermaideditor/id1581312955)

**Currently charting:** #118 Top Paid · Developer Tools (US App Store)

Create and edit diagrams and charts using mermaid-js syntax with real-time preview. Export your creations as PNG or SVG files and share them across all your Apple devices.

**Highlights:** Mermaid-js syntax highlighting, Code completion, Instant preview, Export to PNG/SVG, Cross-device editing, QuickLook preview extension

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Python IDE & Jupyter free?

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

### Is MermaidEditor free?

MermaidEditor costs $3.99, with no in-app purchases.

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

Python IDE & Jupyter is rated higher. Python IDE & Jupyter averages 4.6 out of 5 from 1.1K ratings, while MermaidEditor averages 2.3 from 10 ratings.

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

Neither Python IDE & Jupyter nor MermaidEditor shows ads.

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

Python IDE & Jupyter ships an update monthly, and MermaidEditor every 3 weeks. Most recently, Python IDE & Jupyter was updated on October 12, 2026 and MermaidEditor on October 9, 2026.

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

Python IDE & Jupyter currently peaks at #99 in the App Store charts, and MermaidEditor at #118. 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.*