Runestone Text Editor

Runestone Text Editor

Edit plain text and code

1.3K ratings
326 reviews
#32 in top-grossing Developer Tools
🛠️ Developer Tools
$4.99 Free
In-App Purchases

Lowest price: Free 3 years ago (-100%)


Price history


Details

  • Released
  • Updated

Features

Runestone Text Editor screenshot #1 for iPhone
Runestone Text Editor screenshot #2 for iPhone
Runestone Text Editor screenshot #3 for iPhone
Runestone Text Editor screenshot #4 for iPhone
Runestone Text Editor screenshot #5 for iPhone
Runestone Text Editor screenshot #6 for iPhone
Runestone Text Editor screenshot #7 for iPhone
iphone
ipad
realityDevice
🖼️Get Icon
Icons↘︎

About

A powerful plain text and code editor for iPhone and iPad. Offers syntax highlighting, line numbers, find and replace, and extensive customization options for developers and writers.

Syntax highlighting for many languages
Customizable themes and fonts
Advanced find and replace
Line numbers and cursor location
Code formatting with Prettier.js
Multiple windows on iPad
Show original description

What users say

See all reviews

What's New in Runestone Text Editor

1.6.1

September 15, 2025

Fixes an issue where the "Always Open" option in the Unsupported File Type dialog would be disabled even after purchasing Premium.

2

In-App Purchases

$9.99

Premium

Get the most out of Runestone with Premium.

Charts

Top Grossing

📈 32+6

Developer Tools

This app rose +6 positions in Developer Tools chart.

Last updated on July 18, 2026.

Top Free

The app has maintained its position at 57 recently.

Last updated on July 18, 2026.

User reviews

Simple and clean

I like the simplicity of the app. Would it be possible to add a preview view for html or markdown? Let know if it’s in premium purchase and I’ll get it asap.

Fun to learn

Works fast and you don’t get stuck on a tor browser in another language

Saved my family

huge help back in ‘21. thank you Runestone!

Good app, needs code preview

I use Runestone to view and edit code, and to view plain text documents. When it comes to code, the feature set is ok. I subscribed to premium. I appreciate the one time purchase as opposed to subscription. The only feature I really want that isn’t included is a preview of the code. A side-by-side view, code/preview, would be awesome.
Show more

Linebreaks copy paste bug

Editor is inserting 7 additional linebreaks for each linebreak when copy pasting a section that includes linebreaks, needs fix. Also the app is very unstable(it became more so recently?), editing existing text almost always crashes the app if it involves multiple lines at once or is done too fast. Great design but leaves much to be desired in stability
Show more

Developer apps

User experience

🐞

Reported Bugs

6 issues

Disappearing files

Bug

Difficulty pasting text

Bug

Scroll position not saved

Bug

Hangs on startup

Bug

Trouble opening large files

Bug

Issues after iOS updates

Bug

Requested Features

6 requests

Markdown preview

Feature

Code folding

Feature

Syntax highlighting for more languages

Feature

Ability to run/execute code

Feature

Multiple file/window support

Feature

Improved undo/redo functionality

Feature

FAQ

What does Runestone Text Editor do?

Runestone Text Editor is a powerful plain text and code editor designed for iPhone and iPad. It provides features like syntax highlighting for numerous programming languages, line numbers, advanced search and replace, and extensive customization options to enhance the editing experience for both code and plain text.

What are the key features of Runestone Text Editor?

Key features include syntax highlighting for over a dozen languages, a selection of twelve themes, innovative find and replace functionality, customizable fonts and sizes, line and column cursor indicators, and the ability to use multiple windows on iPad. It also supports code formatting with Prettier.js and various text encodings.

Is Runestone Text Editor free to use?

The app is free to download and use with many core features. However, it offers premium features that can be unlocked through in-app purchases. These premium features include options like choosing custom app icons, showing line numbers, highlighting selected lines, and disabling line wrapping.

What devices is Runestone Text Editor compatible with?

Runestone Text Editor is optimized for iPhone and iPad. It leverages iOS features such as the standard document browser, similar to the Files app, and supports multiple windows on iPad for a more productive workflow.

Who would benefit from using Runestone Text Editor?

This app is ideal for developers who need a robust code editor on their mobile devices, writers who prefer a distraction-free plain text environment, and anyone looking for a more powerful alternative to basic text editors. Its extensive customization and feature set cater to a wide range of text editing needs.