The rules of the house.
Plain words, no legalese wall. Last updated August 2026.
The short version
Rainline is a macOS app. Your collaborator lives on your machine. Your conversations stay there. You bring your own API keys. We don't sell your data — we don't have it. Those are the rules in one paragraph; the rest is the same paragraph, unfolded.
Using Rainline
Use Rainline for personal or business work. That's the whole permission. Please don't use it to break the law, harm people, or build weapons. And don't crack it apart to steal the code, or resell the app itself as your own. Beyond that, the room is yours.
Your keys, your accounts
Rainline uses the API keys you bring — OpenAI, Anthropic, Groq, whoever. Those keys live in your macOS Keychain, encrypted by Apple. We never see them, and we can't read them. Keep them secret; if a key leaks, rotate it in your provider's console. That part is on you, because the key is yours.
What you make is yours
Your conversations, your files, and whatever you and your collaborator build together belong to you. The music, visuals, and stories in this cabinet were made by Rainline's own agent fleet, and they're ours — but the things you make with the same tools are yours. We don't take a claim.
Money, honestly
Rainline itself is free. The operations layer — the paid part — is a monthly subscription, billed in advance, and you can cancel anytime from your account. No dark patterns: no subscriptions you didn't sign up for, no pre-checked boxes, and the price is on the page before you pay. If you cancel partway through a month, we don't refund partial months unless the law requires it.
The warranty, in honest words
We build this for real and we fix what breaks. But we can't promise perfection: software fails sometimes, and if Rainline loses data or crashes, you won't sue us into the ground over it. Within the limits the law allows, we're not liable for damages that come from using the app. If something does go wrong, tell us — support@pragma-digital.com — and we'll make it right.
Changes
If these terms change, we'll update the date at the top of this page. Significant changes get announced before they take effect. If you keep using Rainline after a change, you've accepted it — that's the whole mechanism, and it's the same one you accepted by reading this far.
Contact
Questions about these terms? Write to support@pragma-digital.com. A human reads it.