What is the best alternative to Textastic Code Editor on iPhone?

Python Coding Editor & IDE App, A tier, #2 in code editing.

Is there a free alternative to Textastic Code Editor?

Yes: Python Coding Editor & IDE App (A tier, #2) is free to download, with in-app purchases.

No. Textastic Code Editor is #1 in code editing.

Textastic Code Editor is S tier, #1 of the 7 tiered apps in code editing. Here is everything that competes with it on iPhone, in tier order.

2
Python Coding Editor & IDE AppA
Free + IAP · ★ 4.4 · 4,499 ratings · score 86
Mobile Python editor and interpreter for running, editing, and debugging Python code, with AI help and built-in coding.
3
CodeSnack IDE: AI Coding AgentA
Free + IAP · ★ 4.4 · 2,036 ratings · score 81
A mobile IDE with an AI Agent that edits, runs and tests code inside a Linux Cloud Container on your phone or tablet.
4
Python Editor AppB
Free + IAP · ★ 4.0 · 9,483 ratings · score 80
Python editor for iPhone and iPad to create, edit, and run Python scripts, with syntax highlighting and code completion.
5
Git client - Working CopyC
Free + IAP · ★ 4.8 · 10,799 ratings · score 69
Git client for iOS to clone, edit, commit and push repositories, with other apps able to access the files.
6
Koder Code EditorC
Free download · ★ 4.5 · 18,572 ratings · score 68
Code editor for iPad and iPhone with syntax highlighting, autocomplete, tabbed editing and remote file access.
7
Pythonista 3F
$9.99 · ★ 4.4 · 1,530 ratings · score 38
A Python 3.10 scripting environment for iPad and iPhone to write, run and automate Python scripts on iOS.

What is the best alternative to Textastic Code Editor on iPhone?: Python Coding Editor & IDE App, A tier, #2 in code editing.
Is there a free alternative to Textastic Code Editor?: Yes: Python Coding Editor & IDE App (A tier, #2) is free to download, with in-app purchases.
Does anything rank above Textastic Code Editor?: No. Textastic Code Editor is #1 in code editing.