Coming to App Store

Code editor
for everywhere

Sublime-class editing on your iPad. On-device AI that works offline. From code to prose — one editor, every device.

AppState.swift — Andwriter

main.swift

AppState.swift

EditorView.swift

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@MainActor
public final class AppState: ObservableObject {
    @Published var documents: [TextDocument] = []
    @Published var activeIndex: Int = 0
    @Published var isAIPanelVisible = false
    /// Create a new empty tab
    func newTab() {
        let doc = TextDocument()
        documents.append(doc)
        activeIndex = documents.count - 1
    }

Features

Everything you need.
Nothing you don't.

Built for developers who want Sublime's power on every device — without the bloat of an IDE.

⚡

Instant Launch

Native Swift engine with piece table buffer. Opens files in milliseconds, renders only what's on screen.

🎨

Syntax Highlighting

16 languages out of the box — Swift, TypeScript, Python, Rust, Go, and more. Auto-detected by file extension.

⌨️

Sublime Shortcuts

⌘P, ⌘⇧P, ⌘D, ⌘/ — full hardware keyboard support on iPad. Your muscle memory works here.

📱

Mobile-First

Custom keyboard toolbar with code symbols. Swipe undo/redo. Touch-optimized selection. Built for fingers.

🔍

Find & Replace

Full regex support. Case sensitive, whole word, replace all. Search history. Highlighted matches in real time.

💾

Never Lose Work

Sublime-style session persistence. Close the app — everything's there when you return. Unsaved tabs survive restarts.

On-Device AI

AI that never
leaves your device

✓

Inline AutocompleteGhost text suggestions as you type. Tab to accept, keep typing to dismiss.
✓

Explain & RefactorSelect code, get instant explanations or cleaner implementations.
✓

Fix ErrorsAI spots potential bugs and suggests fixes with one tap.
✓

Works OfflineOn a plane, in a café, at a cabin. Zero internet required.

✦ AI Assistant

Explain

Refactor

Fix

Tests

✦ Refactored code

func openFile(url: URL) {
  // Avoid duplicating already-open tabs
  guard !documents.contains(
    where: { $0.fileURL == url }
  ) else { return }

  let doc = try? FileManager
    .open(url: url)
  documents.append(doc)
}

Writer Mode

From code to prose

One tap switches to a focused writing environment. Clean typography, no distractions, just your words.

The architecture needed rethinking. Every layer

of the system had accumulated debt — small

compromises that compounded into something

that no longer resembled the original vision.

She opened a new document and started from

the beginning, knowing that clarity would come

247 words · 1,432 characters

Keyboard First

Your muscle memory,
respected

⌘⇧P

Command Palette

⌘F

Find

⌘/

Toggle Comment

⌘D

Select Next

⌘⇧D

Duplicate Line

⌥↑

Move Line Up

⌘⇧K

Delete Line

⌘⇧A

AI Assistant

Comparison

How we stack up

	Andwriter	Textastic	Sublime Text	VS Code
iPad with keyboard	●	◐	○	◐
On-device AI	●	○	○	◐
Multi-cursor	●	○	●	●
Command Palette	●	○	●	●
Writer mode	●	○	○	○
Offline-first	●	●	●	○
Native (not Electron)	●	●	●	○
Session persistence	●	○	●	●

● Full support ◐ Partial ○ Not available

Code editorfor everywhere