A slot holds one project — keep it on your device, or sync it to the cloud to back it up and build on it live, together — your team and your AI on the same board. Every feature is included on every plan; you only ever pay for more room to build.
3 + 2 × (packs you buy). One pack ($5/mo) → 5 slots. Two packs ($10/mo) → 7 slots. Downgrade later and your extra projects wait safely in a read-only grace window — nothing is ever deleted out from under you.
A slot holds a complete design. You get 3 free. Everyone starts here, no card.
Keep a project on your device (private, offline) or sync it to the cloud (backed up, shareable, on every device). Same slot, your choice.
Share a cloud project and everyone works the same board at once — your teammates and your AI (Claude, ChatGPT, Gemini), side by side on one canvas. Two people, five people, you + an LLM — real-time, like Google Docs for circuits. That's the cloud's superpower.
Every 2 extra slots is $5/mo. Stack packs as high as you like, adjust or cancel anytime.
Circuitcaster on your phone — design circuits at the bench, offline, with your projects in your pocket. Install the APK directly (Android may ask you to allow installs from your browser).
Yes. Three project slots, every feature unlocked, no card, no ads, no expiry. Paid packs only add room — they never unlock features, because nothing is feature-gated.
A local project lives only on that one device — private and offline, but it doesn't sync or back up. A cloud project is synced across all your devices, backed up, and shareable by link. You choose per project; both count as one slot.
Every 2-slot pack is $5/month. It's one quantity-adjustable subscription: buy 1 pack for +2 slots ($5/mo), 2 packs for +4 ($10/mo), and so on. Change the quantity or cancel whenever you want.
Nothing gets deleted. Any projects over your new cap go into a read-only grace window for a few days — plenty of time to export them or re-subscribe. After that they're archived (hidden, recoverable), never destroyed.
Always. Every project exports to a full JSON bundle, plus KiCad and Gerbers, from any plan. Take it to any tool, take it home. No lock-in, ever.
No. Your projects are never used to train models. Community-library submissions are the only public content, and those are explicit opt-in per project.
Yes. Stripe handles currency conversion automatically at checkout.