Know your flip profit before you bid.
The second an item hits your Whatnot stream, Ruby pulls the real sold price — live — and shows your flip profit. You bid on numbers, not adrenaline.
Get Ruby — 1 year for $100full year · no monthly billsWatch Ruby call a live lot.
A junk title hits the screen. Ruby identifies the real item, photo-matches it, pulls real eBay SOLD comps, and calls it — before the timer hits zero.
Everything costs more.
Your hobby shouldn't.
You get seconds to decide in a live Whatnot auction. Ruby shows the real sold price and your exact profit before you bid — so you never overpay, and never miss the flip.
Auctions end in seconds — no time to check value.
→ Ruby calls BUY or PASS before the timer hits zero.
You overpay when the chat hypes a lot.
→ Ruby shows your real flip profit — numbers, not adrenaline.
You can't pull live comps fast enough.
→ Live eBay SOLD + TCG values on screen, instantly.
Ruby just got a lot sharper.
Real sold prices on everything — with proof it's the same item, and an ear on the stream so you never miss what's on camera.
Local AI VisionFREE
Reads the actual coin or card even when sellers hide it behind flashy banners and junk titles like “Fire item #52.” Runs on-device — no account, no cost.
Real SOLD prices — every category
Not just cards. Coins, graded slabs, and collectible toys & merch — all priced off real eBay SOLD comps.
Photo Match (1:1)
Ruby compares the live video frame to the comp photos and shows a “Photo match” badge — so you know the price is for the exact same item.
Listen to SellerBETA
Optionally uses the stream's audio (never your mic) to catch item names the seller says out loud — transcribed locally.
Real graded values
NGC/PCGS MS & PR grades priced to the correct tier — plus Japanese & Korean graded slabs (CGC/PSA/BGS). Add a free PriceCharting key for the cleanest graded reads.
Accurate-or-nothing
Shows a price only when it can confirm the item. If it can't, it says “no price” — never a fake number. 100% read-only.
How Ruby reads a live auction in real time.
Five things happen in the second an item hits your stream — all on your machine, all read-only, nothing uploaded.
📡 Detects the item
Reads the on-screen title the moment a lot goes live — and can listen to the seller's audio (never your mic) to catch names said out loud.
🧠 Local AI visionON-DEVICE
On-device vision compares the live video frame to real listing photos. 100% read-only.
💰 Pulls real SOLD comps
Fetches actual eBay SOLD prices for that exact item — cards, coins, graded slabs, collectibles. Not asking prices.
🖼️ Photo-matches it1:1 MATCH
Shows a “Photo match” badge so you know the price is for the identical item — not a lookalike.
✅ Calls it: GREEN or RED
Calculates realistic resale + your flip profit, then shows GREEN to buy or RED to pass — before the timer hits zero.
Bid $18.63 · real resale $53.94 · +190% ROI — decided before you tap.
Accurate-or-nothing: if Ruby can't confirm the exact item, it says “no price” — never a fake number.
Up and running in 3 steps.
Turn the engine on
After checkout, unzip the Ruby folder and double-click START RUBY. Leave that little window open while you use Ruby.
Load it in Chrome
chrome://extensions → Developer mode → Load unpacked → the ruby-extension folder. The Setup page opens itself — add any free API keys.
Open Whatnot & go
Paste your RUBY- key, refresh a live stream, and Ruby appears on the right.
One year. One hundred dollars.
A full year of Ruby for $100 — no monthly bills, no surprise renewals. Prefer to pay monthly instead? $30/mo. You never pay both.
Ruby Monthly
- Full Ruby app
- All live comps + Photo Match
- Local AI Vision
- Updates included
Ruby — 1 Year
- Everything in monthly — for a year
- All updates during your year
- 14-day money-back guarantee
- Instant download after checkout
The Complete System
- Ruby app — 1 full year
- The Whatnot Buyer's Playbook
- The Whatnot Seller's Playbook
- Save $30 vs buying separately
Questions people ask
Does it work for both raw and graded pieces?
Yes. Raw hold-ups and slabbed grades both — NGC/PCGS MS & PR tiers, plus Japanese & Korean slabs (CGC/PSA/BGS). Ruby reads the label, the item, and the talk, and prices against real eBay SOLD comps either way.
Is this allowed — is it a bot?
Ruby is a read-only advisor by design. It watches the page and shows you numbers. It never bids on its own. You stay in full control of every click.
What if Ruby isn't sure what the item is?
Accurate-or-nothing: if Ruby can't confirm the exact item, it says “no price” — never a fake number. And the Photo Match badge tells you when the comp is the identical item, not a lookalike.
How fast is it, really?
Ruby pre-loads the comps the moment a lot appears, then re-checks the verdict locally on every bid tick — so the answer is already on screen when the sudden-death countdown starts.
Is my screen or audio uploaded anywhere?
No. Vision runs on your machine, the audio option listens to the stream (never your mic) and transcribes locally. 100% read-only, nothing uploaded.
What do I need to run it? (Mac / Windows)
Mac: ready today — desktop Chrome and your Whatnot show open. Double-click START RUBY, load the extension once, and you're going. Windows: support is in the works — the Chrome extension is cross-platform and the Windows build is coming. Check the note under the buy button for your device's status. Not for phones/tablets.
Bid on numbers. Not adrenaline.
Whether you're protecting your wallet or building an income off the shows — Ruby makes sure every lot you win was worth winning.
Get Ruby — 1 year for $100launch price ends July 31