How to Run Python on iPhone Offline

To run Python on an iPhone or iPad offline, install an app that bundles a Python interpreter on the device: Pocket Compiler: Run Code is free and runs Python, JavaScript, HTML and SQL with no internet and no account. Pythonista, Juno and a-Shell are other on-device options; Replit runs your code in the cloud instead.

Why you need an app

iOS does not ship a Python interpreter you can reach from the home screen, and Safari cannot run a .py file. So the choice is between an app that carries Python inside it (works offline) and a cloud service that runs the code on a server (needs a connection).

Your options on iPhone and iPad

App	Runs on the device	Price model	Good for
Pocket Compiler: Run Code	Yes: Python, JavaScript, HTML, SQL	Free to download; some features are part of an optional upgrade	Exercises, scripts, trying code from a video or book, several languages in one app
Pythonista	Yes: Python	Paid	Python-only scripting with iOS integrations
Juno	Yes: Python in Jupyter notebooks	Paid	Notebook-style data work
a-Shell	Yes: a terminal with Python	Free	People who like the command line
Replit	No, runs in the cloud	Free tier and paid plans	Projects you also open on a computer; needs internet and an account

What Pocket Compiler does on iPhone

Python, JavaScript, HTML and SQL run on the device, offline, from the moment you install. There is no run counter.
Program input: type what your program reads with input(), then run. Class exercises that ask for input work.
Errors point to the line. Tap an error to jump to it.
HTML opens as a live page with its CSS and script. SQL shows its results as a table.
Opens files from the Files app or with "Open in" from another app: .py, .js, .html, .sql, plus TXT, JSON, CSV, Markdown and more.
No account. Your code stays on your device.

Version 2.1 of the iPhone app (in App Store review as of November 2026) adds GitHub browsing and cloning, a built-in terminal, pure-Python package installs from a requirements.txt, and the Code Library of programs from our Shorts.

What it does not do on iPhone

No Java, C, C++ or PHP on iPhone and iPad. (Java is free and C, C++ and PHP are Pro in the Android app.)
Package installs on iPhone are pure-Python only, so packages with compiled parts may not be available there.
Free runs stop at 5 seconds (20 seconds with Pro), so long jobs are not a fit.
The free version shows ads.

How to run a Python file offline on iPhone

Install Pocket Compiler: Run Code from the App Store while you have a connection.
Turn on Airplane mode if you want to prove it works offline.
Create a new file named main.py.
Type:

name = input("Your name: ")
print("Hello,", name)
print(0.1 + 0.2)

Type your name in the input box and tap ▶ Run.
You will see the greeting, then 0.30000000000000004. That second line is a real floating-point quirk, and it is the subject of one of our Shorts (code P2).

Tips for Python on a phone

Keep scripts short and print often: output appears when the program finishes.
If a loop never ends, the app stops it at the time limit, so it stays usable.
Use a hardware keyboard on iPad if you write a lot; the key bar above the on-screen keyboard covers brackets, quotes and indentation.

Frequently Asked Questions

Can I run Python on iPhone without internet?

Yes. Pocket Compiler, Pythonista, Juno and a-Shell all run Python on the device. Replit needs a connection.

Is there a free Python app for iPhone?

Pocket Compiler is free to download and run Python with ads; a-Shell is also free. Pythonista and Juno are paid.

Can I use numpy on iPhone?

In Pocket Compiler on iPhone, package installs are pure-Python only. On Android, Pocket Compiler installs numpy and pandas from a requirements.txt.

Does it work on iPad?

Yes. Pocket Compiler runs on iPhone and iPad.

Is my code uploaded?

No. Your code is stored and run on your device.

See screenshots, the language list and free-vs-Pro details on the Pocket Compiler page. It is also on Google Play for Android.

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## The rest of the toolkit

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App	Job	Rating
Markdown Editor & MD Viewer	Write and preview Markdown on mobile.	4.7★ · 5K+	install ios
WebEva: Build Websites & Code	Build websites from your phone.	4.4★ · 5K+	install ios
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SQLite Editor & SQL Learner	Manage SQLite databases on mobile.	5.0★ · 1K+	install
Python IDE - Offline Compiler	Write and run Python on your phone.	4.1★ · 1K+	install
Aspenote: Offline Voice to Text	It writes it down. On your phone.	—	install
HostPilot: PHP Server & SQL	Turn your phone into a web server.	—	install
DevBuddy: Offline Dev Toolkit	Your pocket developer toolkit.	—	install ios
ShellPilot - Batch SSH Client	SSH terminal & SFTP on the go.	— · 1K+	install ios
API Client -REST & HTTP Tester	Test APIs anywhere, anytime.	— · 500+	install ios
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Open CSV — Viewer & Editor	Open and edit CSV files on mobile.	— · 500+	install ios
JavaScript Editor — React IDE	Run JavaScript and React on your phone.	— · 1K+	install
Image to SVG Converter, Viewer	Convert images to SVG and edit vectors on mobile.	— · 1K+	install
YAML / YML Viewer & Editor	View, edit & validate YAML instantly.	— · 500+	install
Network Toolkit: WiFi IP Tools	Network utilities and diagnostic tools.	— · 500+	install
Code Editor - Text & Notepad	Edit text files on mobile.	— · 500+	install
C / C++ Compiler IDE	Compile & run C and C++ on your phone.	—	install
Diagram Maker: Flow & ERD	Draw flowcharts & ERDs on mobile.	—	install
QR Scanner & Generator	Scan codes with confidence	—	install
Zip Extractor — Unzip RAR 7Z	Open ZIP, RAR, and 7Z files	—	install
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## Questions, answered

Is there a free Markdown editor for Android?

Yes — Markdown Editor & MD Viewer is free on Google Play. It gives you a split-view editor with live preview, syntax highlighting, and HTML/PDF export, and it works fully offline with no account.

Can I edit Markdown from my phone on a desktop browser?

Markdown Editor & MD Viewer includes a Live Server: your phone hosts the document over Wi-Fi and you edit it from any desktop browser with two-way live sync. The file never leaves your device.

Can I make Mermaid diagrams on Android?

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Can I turn Markdown into slides or a PDF on my phone?

Presentation Mode turns any Markdown document into a fullscreen slide deck, and export produces styled HTML or print-ready PDF — all generated on-device.

## From the journal

We're a small studio with one rule: each app does a single job well, works offline, and never asks who you are.