An infinite canvas for AI. On iPad.
Pan a thousand nodes. Wire any model to any input. Run any branch.
Scroll to step through a real run. Each node is a model, a prompt, or an asset — wired together and executing in order. No hidden state, no black boxes.
Structured context, not vibes.
Paste a brief, PRD, or transcript. The canvas reads it as real input — every downstream node inherits the facts.
thirtyseven feels like a whiteboard that runs. Pinch to zoom a thousand nodes, pencil-tap to re-route, play any branch to see a different future.
Pan, pinch, scribble with Apple Pencil. Nodes snap to a dot grid; connections route themselves. Designed for the iPad, not ported to it.
Claude, Veo, Nano Banana, Recraft, ElevenLabs, RunwayML, Gemini Flash — wire any of them to any input.
Split a pipeline into variants and run them in parallel. The best path wins. The others stay, muted, for later.
Everything you build stays on your iPad. Only the node you execute hits the network — each model billed transparently, per run, per token.
The app is free. You bring your own API keys, or top up credits at cost. No markups, no seat minimums.
We're rolling out invites weekly. Drop your email and we'll send you a TestFlight link in the next batch.