Runestone Text Editor
Runestone edits plain text and code with syntax highlighting, search/replace and optional advanced layout controls.
Consider for small mobile file edits
Standard document browsing and supported formatting connect it with existing file workflows.
Keep in mind: Syntax highlighting is not compilation or execution; formatting can alter source, so use backups and check the intended encoding. Line numbers and several layout tools are explicitly premium.
Inside the app
Official product images
What you can do
- Open/edit eligible text files
- Search, replace and format supported syntax
- Use entitled themes, encoding and document controls
Good for
- Users wanting a focused iPhone/iPad text editor
Consider alternatives for
- Users expecting a full build toolchain or every layout feature free
Limitations & considerations
- Captured minimum: iOS 15.0.
- Syntax highlighting is not compilation or execution; formatting can alter source, so use backups and check the intended encoding. Line numbers and several layout tools are explicitly premium.
Privacy & permissions
Source files may contain secrets; verify whether the selected document provider is local or cloud and avoid sharing credentials in files.
Sources & review notes Updated Nov 11, 2026
Reviewed by iApp4Me Editorial Team. Recommendations use the linked documentation and attributed accounts; device observations are identified separately.
- US App Store developer description
Complete description, download price and compatibility metadata captured 2026-11-02.
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