- Universal app for iPhone, iPad, iPad Pro, and iPod touch
- Superfast user interface
- Multiple windows, split view, and slide over support
- Full-screen mode
- Tabs for quickly switching between open files or terminals
- Built-in terminal (SSH client) with support for multiple terminals in tabs
- Connect to BitBucket, Github, GitLab, Custom Git, Dropbox, iCloud, Google Drive, SFTP, SSH, and FTP servers
- iOS Files app support
- Preview files in Safari with "Preview in Safari" function
- Open from iOS Files app (link external folders and open multiple files)
- Send files by email
- File search
- Bracket matching/highlight
- Touch/Face ID protection
- Find and replace (including regular expression search)
- Syntax highlighting and code autocomplete for various programming languages
- Extended keyboard
- Vim coding support
- Unicode support
- Bluetooth keyboard support (supports all iOS shortcut keys)
- Preview any files supported by iOS, including images, PDFs, movies, and documents
- iOS "Open In" support, from Buffer Editor to other apps and vice versa
- Customizable font and font sizes
- Multiple dark and light themes (Ayu Dark, Ayu Light, Buffereditor, Candy, Candyland, Dante, Dark Blue, Deep Dark, Desert, Dracula, Github, Inkpot, Jellybeans, Mac Classic, Made of code, Monokai, Oceanic, One Dark, Putty, Seti, Solarized Dark, Solarized Light, Spacecadet, Spacegray Light, VSCode Dark, VSCode Light, Wombat, Xcode)