Treo

Markdown & text · iPhone & iPad

Open a file. Give your words room.

Read and edit Markdown and text files from Files. Move between source and preview, adjust your reading view, and share the document when it is ready.

A closer look

A file-based Markdown and text editor with preview, search, and optional Syncthing connections.

Work with your files

Browse for an existing document or create a new Markdown file and start writing.

See the result as you edit

Return from the editor to the preview to check formatting, or update a task checkbox directly in Markdown preview.

Set your reading view

Choose a light, dark, or system theme and adjust preview and editor font sizes separately.

Keep the manual close

Start with a short first-use guide, then return to individual tasks whenever you need them.

Read the manual →

Before you begin

On iPhone, choose Library, Sync, or Settings from the tabs. On iPad, choose them from the sidebar. Files access is granted through the system picker. A file provider may require its own account or internet connection. Optional Syncthing connections share data with configured peers and may require Local Network permission. Camera access is requested only if you choose Scan QR code to enter a computer Device ID; entering or pasting the ID does not need camera access.

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