Sigma Foundry Store$9/mo · $90/yr · See plans
Price$9/mosubscription
CategoryLive SellingCollectibles
Works inBrowserno install
Refund14 daysmoney-back
Free tools2in this category
Made bySigma Foundryveteran-owned
Know what every live show really made — after fees, giveaways and what the product cost you.
What you get
- Ledger across every show: sales, profit after everything, profit per hour, and a show-by-show chart
- Log sales as they happen; the buyer box groups wins into orders so Whatnot's per-order $0.30 is counted right
- Inventory with cost basis and a floor for every item: the lowest start that still covers fees and cost, and the price for a 20% margin
- What pays: margin by item and category, so you stop restocking what only moves at a loss
- Printable run sheet for tonight's stream with every floor on it
- Whatnot's US fees preloaded (8%, 5% electronics, 4% coins, 2.9% + $0.30); any other platform's rates in Settings
- Sales CSV for your taxes, JSON backup and restore, sample shows to explore
Who it’s for
Whatnot and live-stream sellers running regular shows — cards, collectibles, anything sold at auction.
What you need
A browser on your phone or computer.
Questions
Does it connect to Whatnot?
No. You log sales as they happen or after the show, and nothing leaves your browser.
I sell on another platform too.
Set any platform's commission and processing rates in Settings.
Can I use it on my phone during a show?
Yes. Logging a sale is one field, one tap.
Can I get a refund?
Yes — within 14 days of your first payment.
How do I cancel?
From your account page, in two clicks. You keep access until the end of the period you paid for.