App Store

Juno Connect: Jupyter Client

Originator Rational Matter
Primary Metric 633
Juno Connect is a client app for Jupyter, a cloud-based computational environment. Juno Connect lets you leverage the computing power of a remote Jupyter server right from your iPhone or iPad. With Juno Connect you can: • Connect to cloud-computing services, such as CoCalc, Binder, SageMaker, Gradient or NAAS • Add and configure your own remote Jupyter servers • Leverage SSH tunneling with local port forwarding for secure connections • Take full advantage of your keyboard and trackpad in our full-featured code editor • Utilise full multitasking capabilities on iPad When you run code in Juno Connect, the actual computing is happening on a remote Jupyter server, giving you access to virtually unlimited computational resources from your iPhone or iPad. You can either connect to your own Jupyter server — directly via HTTP/HTTPS, or by establishing an SSH tunnel with local port forwarding — or use cloud computing services, such as CoCalc, Binder, SageMaker, Gradient or NAAS. And if you would rather execute code on device instead, check out our other app Juno, it lets you work with Jupyter notebooks autonomously on your iPhone or iPad. Juno Connect offers a full-featured notebook and code editor, providing a complete development environment on your iPad or iPhone. it supports Dark Mode and Dynamic Type, offers extended on-screen keyboard and works beautifully with all hardware keyboards and trackpads. Juno Connect lets you reach your Jupyter server easily and securely with SSH tunnel using local port forwarding. You can launch Juno Connect in Split-screen mode alongside other apps on iPad — run notebooks with documentation, terminal, or other code editor in front of you. WHAT IS JUPYTER? Jupyter is an interactive cloud-based computational environment, where you can combine code execution, rich text, mathematics, plots and rich media. It works with Jupyter notebooks, a computational document format that allows storing live code, markdown text, plots, images and equations in LaTeX — all wrapped into a single notebook file. Notebook documents keep record of all inputs and outputs of the interactive programming session, and the rich output generated by running R, Python or Julia scripts (including HTML, images, video, and plots) is embedded into the Jupyter notebook document. They are especially convenient if you are coding in Python for data analysis, machine learning, or computational science in general. A notebook consists of a sequence of cells, each representing either a narrative text in a form of markdown text or HTML, or a coding script with a text or media output. This makes notebooks both human-readable documents with the analysis description and the results (figures, tables, etc), as well as executable scripts for data analysis or plain programming. You can use Jupyter notebook as a document with optional executable code in it, or simply as a programming playground for data manipulation and experiments. Jupyter supports countless programming languages, including Python, R, Julia, and Scala. Jupyter lets you leverage big data tools, such as Apache Spark, from Python, R, and Scala — or explore that same data with pandas, scikit-learn, ggplot2, PyTorch and TensorFlow. And, of course, Juno Connect lets you use whichever language kernels and libraries are installed on your Jupyter server right on your iPhone or iPad.
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Developer & User Discourse

juwairen123 • Apr 9, 2026 ★ 5
So useful
Sipefooblah • Mar 12, 2026 ★ 5
Now getting the hang of it
MosesS77 • Nov 5, 2025 ★ 1
Per the screenshots and other documentation this app natively supports integration with "cocalc" which is a type of virtual computing service. So far, i cannot find an option to add cocalc anywhere in the actual app interface- reached out twice, no response yet. Will update when/if i get a response
ML_Enthusiast • Oct 31, 2025 ★ 4
So far interface has been great and really looking forward to text size change integrated into the app so I can fit more text on my screen. I have faced some bugs in the app related to restart and run all command. Clicking this breaks the connection causing an infinite loop and disconnect and reconnect with no cells being run. Another bug has been highlighted code when in cell. I face issues with highlighting multiple lines which is kinda annoying since this seems like something really basic feature. Also faced a small issue with creating a jupyter notebook file on the server (button does not seem to work). While this might make the app seem terrible, just know even with these issues, this app has a made it a joy to take my ipad with me on the go to my classes and being able to edit, run, and create new models!!!
Algalgal • Sep 8, 2025 ★ 5
This is one of my favorite apps on my iPad.

It takes Jupyter notebooks from being rather awkward on the iPad, to being a real joy to use. And it turns the iPad into a convenient tablet device for analysis which no other device can exactly replace. In other words, it combines these two products in a way that creates a unique and new version of each one, and it's great!

My only complaint about it, really, is my fear that it will go away, because it is not popular enough to support sustained development. I hope it sticks around.

My main feature suggestion is that it might be cool to lean into the iPad's capabilities, and add an integrated drawing control to the app, for inserting quick hand-drawn sketches into a notebook. This could also be a way to add equations for OCR in the notebook.
Joychak • Jul 4, 2025 ★ 1
I tried to connect to my local Jupyter server using ssh fort forwarding. Didn’t work and it has bug. It can’t connect to Jupyter lab.
ztaran • Aug 26, 2024 ★ 5
Very useful especially when I get eye strain from computer screen
JO-412 • Jul 27, 2024 ★ 1
Connecting to a instance of a Jupyter lab fails as it attempts to connect to “:/tree?” rather than /lab/tree
geniuscqy2 • Dec 25, 2023 ★ 5
I use it everyday. Just hope the author can add support for Notebook 7.x soon, and provide some more useful and sleek features like those in Juno.
If this app’s SSH can support jump host natively, it will be fantastic. For now I need to pair this app with Termius or Shellfish’s port forwarding to use the jump host.
rxils • Oct 22, 2023 ★ 5
I like the clean and comfortable design. It's very difficult to find such a nice design among dev apps for iPad
JRome M • Aug 26, 2023 ★ 1
This app doesn’t appear to work with Jupyter Notebooks version 7 or greater (Jupyter Lab 4). I paid for it but never got to use it I don’t want to downgrade my working environment.
TX Allen • Aug 17, 2023 ★ 5
The UI may not be what you’re used to but the implementation is very nice. It has a more “user friendly” way of doing package management. It makes it very easy to take your notebooks on the road.
yangyang2000 • Jun 7, 2022 ★ 3
App is a great concept, well designed, and seemed to work well at first.

The connection to my home server was straightforward. I’ve got a ddns + port forwarding to a jupyter notebook server which I use for data science-y stuff.

After tinkering around for a few minutes. I noticed that cell execution would hang forever. At first I thought it was just a heavy load on the server side, but then even operations like listing the shape of an array wasn’t returning results until I interrupted the operation. There’s something buggy about how the connection works on Juno as I experience no such issues when I switch over to Safari on the same device.

I was hoping that this app could be a great solution, it showed promise, but I’ll wait until these bugs are worked out before I use again. Annoying that there is no free trial…
HoH SiS Foundation Repair • Jan 31, 2022 ★ 5
Juno Connect does exactly what I need. However, like Juno, I would appreciate the ability to open multiple notebooks simultaneously.
Brandon M. Tseng • Dec 11, 2021 ★ 5
Extremely useful app to learn CS programming and additional functionality that I really enjoyed
听净空法师讲经 • Nov 11, 2021 ★ 5
I'm wondering if I can use tensorflow without sitting before a desktop. Thanks!
tpraturi • Nov 10, 2021 ★ 5
If there’s a way to save a profile and get back to it, each time the server restarts, that would be even awesome!! In any case, many thanks for this generosity :)
lw2696 • Jun 1, 2021 ★ 3
This app is great for editing and running a single notebook, but as soon as you work with a larger project that has multiple .py and .ipynb files it becomes very cumbersome.
Would be a 5-star app if one could jump between files using filename fuzzy search or project tree.
nirvanabear • May 31, 2021 ★ 5
See above
Eagle0504 • May 20, 2021 ★ 5
It’s a good buy for sure. I’d love to support them. Everything seems to be working. It works with git as well. The only thing I’d say that needs improvement is speed, but I think we are just limited to our time. :)