# Carnets vs ReasonML

The clearest difference is update cadence: ReasonML at every 2 days against Carnets's monthly. ReasonML also leads on rating (5.0 vs 4.6) and review sentiment (100% vs 78%). Carnets's advantage is ratings volume (316 vs 3) and chart position (#85 vs unranked). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReasonML holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Carnets has 316 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 78% of Carnets's written reviews are positive against 100% of ReasonML's.

Carnets ships an update monthly, ReasonML every 2 days. The most recent releases landed on October 18, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Carnets | ReasonML |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (316 ratings)](https://appshunter.io/ios/app/carnets-jupyter/id1450994949/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/reasonml/id1507769834/reviews)** |
| Number of ratings | **316** | 3 |
| Positive reviews | 78.4% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 days** |
| Monetization | Free | Free |
| Best chart rank | **#85** | — |
| Size | 1.4 GB | 8 MB |
| Requires iOS | 14.0 | **13.4** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Nicolas Holzschuch](https://appshunter.io/developer/1450994948) | [Jacob Parker](https://appshunter.io/developer/1153284524) |

## What reviewers say

### Carnets

[App page](https://appshunter.io/ios/app/carnets-jupyter/id1450994949)

**Currently charting:** #85 Top Free · Developer Tools (US App Store)

This app offers a standalone Jupyter notebook environment for creating and running code snippets, combining them with text and Markdown. It includes pre-installed scientific packages and allows for offline use, making it ideal for education and research.

**Highlights:** Standalone Jupyter notebook implementation, Embedded Python interpreter, Offline functionality, Pre-installed scientific packages, Supports Jupyterlab, Package installation via %pip, Notebook sharing and opening

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

**In-app purchases:** none

**What reviewers like**

- 🚀 Excellent app for coding on iPad
- 👍 Convenient for learning and coding on the go
- 🚀 Works just like Jupyter Notebook on desktop
- 👍 Helpful for self-learning Python
- 👍 Useful for data science and machine learning

**What reviewers complain about**

- 🐛 Bugs and stability issues
- 🔋 Battery drain and overheating
- 🔒 Unauthorized access to photo library
- 🐛 Issues with importing certain libraries like SciPy and Scikit-learn

**Reported bugs**

- Crashes and freezes
- Issues with saving and loading notebooks
- Problems with running scripts and notebooks
- Incompatibility with newer iOS versions

**Requested features**

- Add support for SciPy, Scikit-learn, and other scientific computing libraries
- Improve file management and integration with cloud storage services
- Implement split-screen or multi-window support
- Add more keyboard shortcuts and customization options
- Improve error handling and provide more detailed error messages


### ReasonML

[App page](https://appshunter.io/ios/app/reasonml/id1507769834)

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:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Carnets free?

Carnets is free to download, with no in-app purchases.

### Is ReasonML free?

ReasonML is free to download, with no in-app purchases.

### Which has better reviews, Carnets or ReasonML?

ReasonML is rated higher. Carnets averages 4.6 out of 5 from 316 ratings, while ReasonML averages 5.0 from 3 ratings.

### Do Carnets or ReasonML have ads?

Neither Carnets nor ReasonML shows ads.

### Which is updated more often, Carnets or ReasonML?

Carnets ships an update monthly, and ReasonML every 2 days. Most recently, Carnets was updated on October 18, 2026 and ReasonML on October 15, 2026.

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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.*