It knows your machines, your materials, your preferred brands — and it remembers. Start free, upgrade when it's earning its keep.
Try 4man with basic questions and calculators. No card required.
Unlimited questions, persistent shop memory, voice, and priority model — it actually remembers your shop.
Card required. Cancel anytime before day 14, no charge.
No. Your card is collected but not charged until day 14. Cancel any time before then and you pay nothing.
You keep Pro access until the end of your current billing period, then drop to the free plan. Your conversation history and shop profile stay intact.
On the free plan, 4man knows your shop profile (machines, materials, preferred brands). On Pro, it also remembers specific facts from your conversations — "quoting Ti-6Al-4V brackets for aerospace," "broke a 1/4" endmill at 3500 rpm in 4140" — and surfaces them naturally in future sessions.
Yes. Every month you'll get a Stripe-generated invoice emailed to you. You can also download past invoices from the Manage Subscription page.
Payments are processed by Stripe — we never see or store your card details. Your conversation data is stored encrypted in Supabase and never shared.