- 1Writer - Markdown editor for iOS
- Blink shell - shell on iOS
- Dash (DevDocs alternative)
- DevDocs (PWA)
- Inspect - Dev Tools
- LastPass - Password Manager
- MIHTool Basic - Web Debugger (Dev Tools) - FREE
- Prompt2 - another SSH Tool
- Secure Shellfish (SSH Tool)
- Shortcuts
- Working Copy (Git Client for iOS)
- StaSh (Shell for Pythonista)
IDEs:
- Buffer Editor - Code Editor
- Code Editor by Panic
- Continuos (.NET C# and F# IDE)
- GoCoEdit (Text Editor like Sublime)
- iVIM (another VI for iOS)- FREE
- JavaScript Coding Programming - FREE
- Juno (Jupyter IDE)
- Koder Code Editor
- Kodex - FREE
- Play.JS - an IDE for Node and JavaScript on iOS
- Python IDE - FREE
- Python2IDE - FREE
- Pythonista
- Text Editor PWEditor - FREE
- Textastic Code Editor
- TextCode - FREE
- VIM (VI for iOS) - FREE
- Working Copy
I found CurtisMcHale and Tech Craft recommended apps, and replaced with mine search and taste. More references from