Less to see, more to say.

Open it and start writing. There’s no account to create and nothing to sign up for. Your documents stay on your device, and if you’d like a copy in iCloud Drive or OneDrive, that’s one switch away. Even spelling and grammar are checked right on your computer.

Need a quick calculation? Type “four to the power of two times three”, and Letter turns it into real math notation, 4² × 3, with the answer already worked out. And when something is just for one person, send it as a .letter file. It’s encrypted twice and signed by you, and a faint pattern on every page means even a photo of the screen can be traced back to its source.