Know your flip profit
before you bid.
Ruby watches your Whatnot stream and does the reseller math in real time — all-in cost vs. resale value — then calls it: BUY, THIN, or PASS. You bid on numbers, not adrenaline.
Get Ruby — launch price $29.99The auction moves too fast to do the math. Ruby doesn’t.
Flipping on Whatnot lives and dies on margin. But in 8 seconds you can’t price a slab, subtract fees and shipping, and check comps. Ruby does it every single lot, instantly.
Reads the lot live
The instant an item and its grade hit the screen, Ruby picks them up — no typing, no pausing the stream.
Estimates the resale value
She checks what that exact graded item actually sells for, and works out what you’d net after fees and shipping.
Does the math on your bid
All-in cost vs. resale value, updated live as the bidding climbs — so you always know your real margin.
Calls it: BUY, THIN, or PASS
Green means flip it for profit. Amber means the margin’s thin. Red means walk away. Decided before the timer hits zero.
Why resellers need her
Every second Ruby saves is a lot you flip at a profit — or a loss you dodge.
Know your profit before you bid
Ruby shows exactly what you’d net after reselling — so every bid is a business decision, not a gamble.
She stops you at the line
The second a lot flips from profit to loss, Ruby turns red. No more getting caught up and overpaying.
Faster than the timer
You can’t price a graded slab, subtract fees, and check comps in 8 seconds. Ruby can. That speed is the whole edge.
Built for flipping
Every verdict is about resale margin — buy low on Whatnot, resell for profit, know the number up front.
Hands-free on the stream
Ruby watches and calls it while you focus on the show. Copy the title or grab the ID in one tap.
Any graded category
Pokémon, sports, coins, comics — if it’s slabbed and has a resale market, Ruby runs the numbers.
One tool. Every stream. Real margins.
What does Ruby actually tell me? Your real flip margin on the live lot: all-in cost (bid + shipping) vs. what you’d net reselling it — shown as BUY, THIN, or PASS.
How is she faster than me? She reads the slab, estimates resale, and does the math before the timer ends — hands-free, so you stay in the show.
Is it a subscription? Not this month. Launch buyers get lifetime for $29.99. After the launch window it’s $15/month.
What do I need? A Mac and your Whatnot stream. That’s it.