When can I subscribe?
Plans go on sale when AIM Works launches on September 15, 2026. Until then, join the launch list — it's free, requires no credit card, reserves nothing, and simply gets you access on launch day.
What's included in the free trial?
At launch, the free trial gives you full access for 14 days, with 20 AI messages total and 1 active project. No credit card required to start.
What counts as an AI message?
Each time AIM Works calls Claude on your behalf — a chat message to the design co-pilot, an Autopilot setup step, or an AI Design Review — it counts against your monthly allowance. Autopilot project setup uses roughly 20 calls per run. Deterministic checks (input validation, coordination warnings) don't consume messages.
Can I switch plans or cancel anytime?
Yes. Upgrade, downgrade, or cancel from your account at any time. If you cancel, your access continues through the end of your current billing period — there are no partial refunds for unused time.
Do you offer a Firm or Enterprise plan?
Not at launch. AIM Works is sold per individual engineer. Multi-seat firm plans are on the roadmap after launch.
What happens when my trial ends?
When your trial expires, your account is paused and you can no longer access the Design Workspace. Your project data is retained. Upgrade at any time to restore access.
What's the difference between monthly and annual billing?
Monthly billing is $99/mo (Starter) or $199/mo (Professional) — pay as you go, cancel anytime. Annual billing is $999/yr or $1,999/yr — that's 2 months free compared to paying monthly.
Are the free calculators really free forever?
Yes. The 60+ free HVAC calculators on the tools page require no account and have no usage limits. They will always be free.