2025-04-23
Works ok, can’t handle large dataset
Works ok for small tasks. When it comes to large data set like 1m row+ the app will crash
Updating
-8
#14 in Top Grossing Apps > Developer Tools
+35
#45 in Top Free iPad Apps > Developer Tools
-4
#29 in Top Grossing iPad Apps > Developer Tools
Description
Zero-setup Python environment and developer toolbox in a first-class citizen app for iPad and iPhone.
Juno is designed to cover all your Python coding needs, and will work seamlessly with all source code formats. Juno supports both Python scripts (.py) and Jupyter notebooks (.ipynb) — a document format focused on applying Python to data analysis and computational science.
FREE FEATURES
- Navigate and manage files and folders, quickly preview documents and media
- Browse and view Jupyter notebooks with quick and beautifully rendered previews
- View and edit code sources, scripts, JSON, XML, and other text-based formats in a built-in versatile plain text editor with syntax highlighting
- Add quick access bookmarks for file system locations outside the app's sandbox, or simply open documents in place
PRO FEATURES
- Run code in Jupyter notebooks and Python sources locally on your device with a built-in Python 3.10 interpreter, entirely offline
- Write and execute Python code in a full-fledged development environment, featuring snappy, intelligent code completion and a console with full terminal emulator support
- Access all Jupyter features in a modern, powerful and customizable notebook editor
- Works with Siri: create Shortcuts that run Python code or .py scripts in Juno—pass arguments and files, capture output and chain actions
- Leverage powerful data analysis, machine learning and developer tools: NumPy, Matplotlib, SciPy, Scikit-learn, Pandas, LXML, and more
- Enjoy painless package management: easily install any pure Python package with an intuitive package manager
PYTHON SCRIPTS
Python scripts are plain-text Python source code files with a .py extension. Juno lets you work on these with snappy code completion, a console with full terminal emulator support, a built-in media viewer for code-generated images, plots, web apps, and more. Juno will execute the code using an embedded Python interpreter, locally on your iPhone or iPad and completely offline.
JUPYTER NOTEBOOKS
A Jupyter notebook is a versatile document format that enables you to store live code, markdown text, plots, images, and LaTeX equations — all within a single notebook file with a .ipynb extension. Notebooks serve as excellent Python coding playgrounds for data manipulation and experimentation, and Juno makes working with them a breeze!
Notebook documents keep a record of all inputs and outputs from an interactive programming session, and the rich output generated by running Python scripts (including HTML, images, video, and plots) is embedded within the Jupyter notebook document. They are particularly convenient for coding in Python for data analysis, machine learning, or computational science in general.
What's New in Version 3.10.0
What's New in 3.10:
– The Python source editor now supports resizable sidebars on iPad.
– Improved kernel management and reliability.
– Fixed crashes and bugs related to notebook previews.
– Fixed issues with bookmarks and file locations in iCloud.
Seller
Name
Rational Matter Ltd
Information
Developer
Categories
Version
3.10.0
Size
566.3 MB
Game Center
No
VPP Device Licensing
Yes
Rating
Rated: 4+
Compatibility
iOS 16.0 or later
Devices
iPhone 5s, iPhone 6, iPhone 6 Plus, iPhone 6s, iPhone 6s Plus, iPhone SE, iPhone 7, iPhone 7 Plus, iPhone 8, iPhone 8 Plus, iPhone X, iPhone XR, iPhone XS, iPhone XS Max, iPhone 11, iPhone 11 Pro, iPhone 11 Pro Max, iPhone SE (2nd generation), iPhone 12, iPhone 12 Pro, iPhone 12 Pro Max, iPhone 12 mini, iPhone 13, iPhone 13 Pro, iPhone 13 Pro Max, iPhone 13 mini, iPhone SE (3rd generation), iPhone 14, iPhone 14 Plus, iPhone 14 Pro, iPhone 14 Pro Max, iPhone 15, iPhone 15 Plus, iPhone 15 Pro, iPhone 15 Pro Max, iPhone 16, iPhone 16 Plus, iPhone 16 Pro, iPhone 16 Pro Max, iPhone 16e, iPhone 17, iPhone 17 Pro, iPhone 17 Pro Max, iPhone Air, iPhone 17e, iPad (5th Generation) Wi-Fi, iPad (5th Generation) Wi-Fi + Cellular, iPad (6th generation) Wi-Fi, iPad (6th generation) Wi-Fi + Cellular, iPad Pro, iPad Pro (Cellular), iPad Pro (9.7-inch), iPad Pro (9.7-inch) (Cellular), iPad Pro 12.9-inch (2nd generation), iPad Pro 12.9-inch (2nd generation) Wi-Fi + Cellular, iPad Pro (10.5-inch), iPad Pro (10.5-inch) Wi-Fi + Cellular, iPad Pro (11-inch), iPad Pro (11-inch) Wi-Fi + Cellular, iPad Pro 12.9-inch (3rd generation), iPad Pro 12.9-inch (3rd generation) Wi-Fi + Cellular, iPad Air, iPad Air (Cellular), iPad Air 2, iPad Air 2 (Cellular), iPad Air (3rd generation), iPad Air (3rd generation) Wi-Fi + Cellular, iPad mini Retina, iPad mini Retina (Cellular), iPad mini 3, iPad mini 3 (Cellular), iPad mini 4, iPad mini 4 (Cellular), iPad mini (5th Generation), iPad mini (5th Generation) Wi-Fi + Cellular, iPad (7th generation) Wi-Fi + Cellular, iPad Pro 11-inch (2nd generation), iPad Pro 11-inch (2nd generation) Wi-Fi + Cellular, iPad Pro 12.9-inch (4th generation), iPad Pro 12.9-inch (4th generation) Wi-Fi + Cellular, iPad Air (4th Generation) (Wi-Fi), iPad Air (4th Generation) (Wi-Fi + Cellular), iPad (8th generation) Wi-Fi, iPad (8th generation) Wi-Fi + Cellular, iPad Pro 11-inch (3rd generation), iPad Pro 11-inch (3rd generation) Wi-Fi + Cellular, iPad Pro 12.9-inch (5th Generation), iPad Pro 12.9-inch (5th Generation) Wi-Fi + Cellular, iPad (9th Generation), iPad (9th Generation) Wi-Fi + Cellular, iPad mini (6th Generation), iPad mini (6th Generation) Wi-Fi + Cellular, iPad Air (5th generation), iPad Air (5th generation) Wi-Fi + Cellular, iPad Pro 11-inch (4th generation), iPad Pro 11-inch (4th generation) Wi-Fi + Cellular, iPad Pro 12.9-inch (6th generation), iPad Pro 12.9-inch (6th generation) Wi-Fi + Cellular, iPad (10th generation), iPad (10th generation) Wi-Fi + Cellular, iPad Air 11-inch (M2) Wi-Fi, iPad Air 13-inch (M2) Wi-Fi, iPad Air 13-inch (M2) Wi-Fi + Cellular, iPad Pro 11-inch (M4) Wi-Fi, iPad Pro 11-inch (M4) Wi-Fi + Cellular, iPad Pro 13-inch (M4) Wi-Fi, iPad Pro 13-inch (M4) Wi-Fi + Cellular, iPad mini (A17 Pro) Wi-Fi, iPad mini (A17 Pro) Wi-Fi + Cellular, iPad (A16) Wi-Fi, iPad (A16) Wi-Fi + Cellular, iPad Air 11-inch (M3) Wi-Fi, iPad Air 11-inch (M3) Wi-Fi + Cellular, iPad Air 13-inch (M3) Wi-Fi, iPad Air 13-inch (M3) Wi-Fi + Cellular, iPad Pro 11-inch (M5) Wi-Fi, iPad Pro 11-inch (M5) Wi-Fi + Cellular, iPad Pro 13-inch (M5) Wi-Fi, iPad Pro 13-inch (M5) Wi-Fi + Cellular, iPad Air11M4, iPad Air11M4Cellular, iPad Air13M4, iPad Air13M4Cellular, iPod touch (6th Generation), iPod touch (7th generation)
Languages
English, Chinese, French, German, Japanese, Russian, Spanish
App Store: Customer Ratings
Ratings & Reviews
4.6 of 5 (63 Ratings)
App Store: Customer Reviews
2025-03-23
Looks good… too bad I can’t use it
Every time I try to do some thing like edit a file a pop up comes up and I can’t edit it, I thought this was an editor not a viewer.
2025-01-20
Good portable IDE
This is by far the best Python IDE I have found for my phone. It has all of the library packages I need to prototype ideas or use tools that I have coded for myself when I am unable to have my computer. Very happy to have found this app
2024-11-28
?
You have to pay to code at all
2024-09-18
Amazing
Brilliant, easy to install and pretty full functioning python notebook environment. Just wish there was a version for MacBooks.
2023-09-05
Great! But would like google drive
After testing multiple apps for running Python code, I’m really happy to have found this one! The ability to save files on iCloud/OneDrive is great however, all of my jupyter notebooks are stored on google drive as it’s used for Uni (google colab). I only have .py files saved in iCloud. It would be amazing if there was the ability to access files from a google drive too.
I use this app a lot on the go, but want to keep all my notebooks stored in the same place without needing to duplicate them. If this isn’t possible I’ll consider transferring them to OneDrive, but want to know if google drive integration could be featured in the future first 😊
P.s. Thanks! I no longer need to sit for hours at a computer desk and can work on projects no matter where I am!
2022-07-11
Great App w/ Some Frustrating Bugs
Fundamentally, I think this app is well worth your money, as it captures the jupyter notebook experience really well. If you are worried about it being a half baked app, its not.
However, it is buggy. Crashes not infrequently, and perhaps the most frustrating will bug out and scroll to the current cell output, not code, every time you press a key. This means your code is offscreen and your are coding blind. The only thing that fixes this is a full restart, but then you need to run through your whole workflow again.
Additionally, you cannot change font size and with the aggressive scaling on iPadOS means you can’t fit much code onto your screen.
Overall I would say it justifies its price over and above say, Carnets. Just needs some more QAQC
2022-02-10
GOOD but still need to work on it
My workflow is highly dependent on Notebooks and I use Juno when my PC is occupied.
The experience using Juno is good in general, but I found the “sjoin”function in Geopandas doesn’t work as it requires “rtree” or “Pygeos”. Could you please help me with this? Thanks.
2022-01-12
Great Jupyter App
This app is great for most data science use cases. The selection of packages is quite good, although it would be good to see Keras / Tensorflow be implemented. (If it’s even possible)
As a more realistic suggestion, it would be great if you could update the app to allow the editing and running of regular .py files in addition to notebooks. (Useful for writing and testing libraries that may be used in notebooks)
2021-12-03
App crashes when file is unavailable
Juno crashes whenever it can’t find a file that was previously opened from the network (when re-opening the app). This is a bug that needs to be fixed.
2021-08-19
Just a suggestion
I use this app often for Uni. I noticed that while on an iPad pro you cannot have a dual screen (i.e have juno open twice on the page). I feel this could be really helpful. Otherwise really user friendly!
2021-01-24
JUNO
Excellent app to do data analysis via portable Jupyter notebook on your iPhone. Great access to libraries such as pandas, numpy, seaborn etc. Only hitch so far is if you have to leave app temporarily (eg to retrieve information, lookup code etc) you can’t get back into JUNO without restarting iPhone. If that could be fixed it would be a 5!
2020-05-31
Amazing!
One of the most valuable apps on my iPad Pro. Looking forward to future releases!
2020-05-17
Not good
Can not install package as shown in ad
2020-02-22
Stable and perfect for iOS
Pandas, Matplotlib and bumpy functionality are really well implemented, great functionality and easy to use. Does a good job even with Apple’s sandboxing
2020-01-29
5 stars
This is amazing app!
2019-10-01
Wow!
This totally does what it says on the box! You can edit Jupyter notebooks and run them locally on the iPad. The editor interface is still a bit basic, but please buy this app to support the developer. The price is totally appropriate and iPad users have been waiting a long time for this, a first I believe for notebooks.