Fast calculations
Margin, fee, shipping, and listing checks without opening a laptop.
Backend-routed AI
Calculators use IDs and device tokens instead of raw OpenAI keys.
Included credit
Each calculator ships with prepaid AI balance in the platform ledger.
Rechargeable balance
Customers add funds by entering email, calculator ID, and a top-up amount.
How It Works
Payment confirmation, provisioning, balance updates, email, and sheet sync run from backend jobs.
Calculator Models
Each model maps to a Stripe product and receives a platform-managed usage balance.
A focused handheld calculator for ecommerce margin, fees, shipping, and AI-assisted listing decisions.
A calculator tuned for title, keyword, and description workflows with prepaid AI generation credit.
A shipping and landed-cost calculator for sellers who need fast package, fee, and margin checks.
FAQ
The platform is built around device IDs, signed tokens, and backend-controlled balance.
How do I add money?
Open the top-up page, enter the order email and calculator ID, then check out with Stripe.
What happens when balance runs out?
The backend rejects AI requests until the calculator receives more credit.
Where is my calculator ID?
It is sent after payment and shown in the order lookup view.
Is an OpenAI key stored on the calculator?
No. The calculator authenticates to the backend, and the backend calls OpenAI privately.