# Carnets - Jupyter — user reviews

> 305 indexed App Store user reviews of Carnets by Nicolas Holzschuch, rated 4.60/5 from 316 ratings.

- Source: https://appshunter.io/ios/app/carnets-jupyter/id1450994949/reviews
- App overview in markdown: https://appshunter.io/ios/app/carnets-jupyter/id1450994949.md
- Rating breakdown: 5★ 253 · 4★ 27 · 3★ 13 · 2★ 7 · 1★ 16

## What do users think of Carnets?

Overall sentiment: positive

**Pros**

- 🚀 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

**Cons**

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

**Commonly reported bugs**

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

**Most 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

## Newest reviews (13 of 305)

### 3/5 — Заебали ошибки

*2026-06-17, version 1.9.1*

Вышел на 2 секунды с него? Все перезагружац карнетс тоесть нельзя открывать файлы запускать их и тд. Геморойнач проблема которая порой бесит и не слабо

### 4/5 — Great but…

*2026-02-18, version 1.9.1*

It is very good but you can’t copy and paste
So it takes longer to code

### 3/5 — Okay

*2025-12-22, version 1.9.1*

For being a free app that requires no trial or anything it’s okay. The UI was solid, but the only reason I uninstalled the app was because it kept crashing on me daily and sometimes it didn’t save my code so when I had to refresh it because there was another glitch that didn’t let me run code it also wouldn’t save my code. Very frustrating.

### 3/5 — Seaborn is not supported

*2025-11-15, version 1.9.0*

I tried to import seaborn, but it shows an error.

### 4/5 — Bug with latest Carnets update

*2025-11-12, version 1.9.0*

Love the app but same issue as JorgeC on iOS 18.7

### 4/5 — Error starting Kernel after iOS 26.1 iPad upgrade

*2025-11-05, version 1.9.0*

I love this app; unfortunately, after yesterday’s iPadOS 26.1 upgrade (from 26.0.1), now, when opening a Jupyter notebook (or even, creating a fresh new one), it gives the error “Error starting Kernel” followed by a “‘module’ object is not callable” window error. Nothing works after this; did not have any issues before it.

### 4/5 — 神ツール！ファイル消失がなければ星5！

*2025-10-27, version 1.8.4*

スマホでPythonを実行できる環境が欲しかったので嬉しかったです。課金要素もなさそうなので。

でも、自分が頑張って書いたファイルが消失するエラーはめっちゃ修正して欲しいですね！悲しいので！

### 3/5 — High Battery Consumption

*2025-10-23, version 1.8.4*

On iPhone 17 running iOS 26.0.1 (23A355), the battery drains too quickly. Even though I only opened simple Python list and tuple example files that had already been executed, it used up about 40% of the battery in just 40 minutes. This needs to be improved.

(Translated with a tool, may contain slight inaccuracies.)

### 4/5 — Suggestion

*2025-10-21, version 1.8.4*

The app does what it promises. I would find very interesting if I could run cell with the volume button

### 4/5 — تنقصه العربية Arabic support missing

*2025-08-09, version 1.8.4*

This app would be fantastic if it could display Arabic characters in its output results. I’d give it a solid 5 stars in that case!

### 4/5 — Great

*2025-04-27, version 1.8.4*

AMAZING just needs error messages

### 4/5 — Not workin right

*2025-03-27, version 1.8.4*

I’m using ChatGPT to help me but none of the coding is working. The AI said that the matplotlib isn’t working. Otherwise, I love it.

### 5/5 — Exceptional

*2025-03-17, version 1.8.4*

Just. Exceptionnal. I searched for weeks for an iPad app to use Python and this is it ! No ads, perfectly working and perfectly done. I sincerely recommend it and hope it may be enlarged to C++,  HTML,… continue !!!

## Most critical reviews (10 lowest-rated)

### 1/5 — Blank on macOS

*2026-06-01, version 1.9.1*

The app shows up as a blank screen and crashes when you try to open files. It should be de-listed for macOS until it can get fixed. (Do try it on iPad though, it’s better there.)

### 1/5 — Fix this

*2026-05-31, version 1.9.1*

I get sent staright to foles and can’t make a photo on it

### 1/5 — Stuck on file manager

*2026-05-03, version 1.9.1*

This app is stuck on file manager and won’t exit that. Unusable

### 1/5 — Сигма

*2026-04-06, version 1.9.1*

Ужасно

### 1/5 — Download

*2026-02-05, version 1.9.1*

Its trying to load but i try every time its not working 
(Iphone XS )

### 1/5 — Very unstable

*2025-09-05, version 1.8.4*

No kernel lots of problems waste of precious time

### 1/5 — 打不开文件

*2025-06-16*

第一次可以打开文件，过了一会就一直打不开文件并闪退

### 1/5 — Cannot upload CSVs for the life of it.

*2024-04-02, version 1.8.3*

I said it. I have a CSV file with 79 KB of data and I have never been able, for the past 30 minutes plus, to successfully have it uploaded even after I unlocked access to the file. Uninstalled.

### 1/5 — Unusable

*2024-01-14, version 1.8.0*

Tried opening it up, it immediately goes to my iCloud Drive and says that it doesn’t have permission. It won’t let me create a new notebook. Looking this up online it was reported as a bug four years and seems it was never fixed…

### 1/5 — 갑자기 안되요

*2023-10-15, version 1.7.9*

아이폰 iOS 17.0.3에서 404 : Not Found You are requesting a page that does not exist! 이화면 나타남

## Most praised reviews (10 highest-rated)

### 5/5 — Add other files to be run.

*2026-06-28, version 1.9.1*

It is a good app for writing the codes of python. It should also be made for to write the code such as html , js, css and etc languages. And where we write code in the box that should be changed into normal just like vsc.After that very thing is fine. I wish that the dev of this app should understand the perception of collage student or data science student who are going to do jobs after completing their studies using a very good app for the students who are using iPadOS.

### 5/5 — Very good

*2026-03-01, version 1.9.1*

Very good for learning python programming.hope you fix the bugs

### 5/5 — Excellent software

*2026-02-01, version 1.9.1*

I am learning Python and this app is really good to run my small scripts. I have an iPad Pro and I divide the screen in 2, in 1 side Carnets, the other side the book that I am studying

### 5/5 — Can’t open file

*2025-11-26, version 1.9.1*

Can’t open file

### 5/5 — IM SO THANKFUL FOR THIS

*2025-09-30, version 1.8.4*

I don’t have access to a computer and I’m dirt poor ($0.77 poor 😭). THE FACT THAT THIS APPLICATION IS COMPLETELY FREE, AND YOU HAVE PRE-INSTALLED PACKAGES?!? I really really needed this for school, I’m literally so grateful for this thank you thank you thank you so much it’s incredible.

### 5/5 — For me best app for jupyter nb on iOS

*2025-08-15, version 1.8.4*

Seriously this app helped me a lot in my university during exam days. And props to developer for keeping it free and with no in-app purchases.

### 5/5 — Super App 🤩

*2025-07-28, version 1.8.4*

Sehr tolle App ich habe es nur kurz ausprobiert alles funktioniert, wenn etwas falsch gecodet ist, sagt die App dir was falsch ist.

### 5/5 — Cool!

*2025-05-11, version 1.8.4*

This app is really cool. Looks and works like my Jupyter lab on pc. Thanks, man!

### 5/5 — 文件问题

*2025-04-07*

很好用，但是如何在ipad上使用时导入数据文件呀，ipad上的数据文件地址无法使用。

**Developer response:** The easiest solution is to have the notebook and the data file in the same folder. iOS prefers relative paths to absolute paths. For more help, you can also contact us at carnets_jupyter@icloud.com

### 5/5 — A really helpful app, which improves my programming skills

*2025-03-18, version 1.8.4*

This is an absolute cinema of all the programming apps. Even pip comes with it! Apart from that, the app itself is better than the IDLE shell💀💀💀

---

*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-01.*