Pythonista is nicer but ships older Python:

https://omz-software.com/pythonista/

Pyto is maybe less approachable but more up to date, with clang compiler and LLVM bitcode interpreter:

https://pyto.app/

Juno is Python notebooks:

https://juno.sh/https://juno.sh/

In general I prefer Blink Code:

https://docs.blink.sh/advanced/code

Yeah Blink with the built-in VS Code is so far ahead of other options. Being able to remote back to your machine and pick up right where you left off is unbeatable.

Haven't tried it yet, but personally I'm very interested in Pythonista which also exposes an impressive number of iOS APIs (bluetooth, camera, etc.) that you can use in your scripts. No idea how it functions as an IDE though.

Hosted vs code server is what I used to use: https://github.com/coder/code-server

They've added support in blink as well which is my favorite iOS purchase for productivity on my iPad https://blink.sh/

Not an IDE, but “Carnets” gives you a local (i.e. offline) Jupyter installation on iPadOS that includes NumPy, SciPy, Matplotlib, etc.

I second this recommendation.

I used Carnets for the Advent of Code last year. I ran out of steam long before it did.