What is the best alternative to Runestone Text Editor on iPhone?

Text Editor., A tier, #2 in text editing.

Is there a free alternative to Runestone Text Editor?

Yes: Text Editor. (A tier, #2) is free to download, with in-app purchases.

No. Runestone Text Editor is #1 in text editing.

Runestone Text Editor is S tier, #1 of the 8 tiered apps in text editing. Here is everything that competes with it on iPhone, in tier order.

2
Text Editor.A
Free + IAP · ★ 4.3 · 6,268 ratings · score 89
Browses and edits text files on your device and in cloud services including iCloud, Google Drive and Box.
3
iA Writer: Get FocusedA
$19.99 · ★ 4.6 · 5,255 ratings · score 87
A plain text writing app for Markdown with a distraction-free editor, Focus Mode, Quick Search and export to several.
4
Paper: Writing App, NotesC
Free + IAP · ★ 4.6 · 2,702 ratings · score 67
A writing app with a clean editor that supports Markdown or Plain Text, iCloud sync, and exports to several file.
5
TextEditor : Rich Text EditorC
Free download · ★ 4.4 · 8,354 ratings · score 64
Free rich text editor for iPhone that edits TXT, RTF, RTFD, RTA and HTML files and syncs with Google Docs.
6
Just Write - App For WriterC
Free + IAP · ★ 4.3 · 3,044 ratings · score 63
A minimal text editor for writing that supports RTF and plain text (TXT) files with optional iCloud sync.
7
Documents (Office Docs)C
Free download · ★ 4.5 · 155,623 ratings · score 62
Mobile office suite for editing spreadsheet and rich text files on iPhone and iPad, with online and offline use.
8
Hanx WriterF
Free + IAP · ★ 3.7 · 3,525 ratings · score 34
Typewriter-style word processor for iPhone and iPad with typewriter sounds, document sharing, and typing in third-party.

What is the best alternative to Runestone Text Editor on iPhone?: Text Editor., A tier, #2 in text editing.
Is there a free alternative to Runestone Text Editor?: Yes: Text Editor. (A tier, #2) is free to download, with in-app purchases.
Does anything rank above Runestone Text Editor?: No. Runestone Text Editor is #1 in text editing.