Scan in the browser
A link on the phone, camera on, scan. No app, no app store, no training — the new temp is booking stock from minute one.
INVENTORY FOR EBAY SELLERSBeep.
Beep.
Counted.
Done.
StackStock turns your Google Sheet into a scannable inventory system. Phone out, barcode scanned, count correct — offline in the warehouse, on eBay in seconds. And never again sell something you no longer have.
NO APP · NO IMPORT · NO CREDIT CARD
Everything that matters. Nothing that doesn’t.
Your sheet, your data
Your inventory lives in your sheet, not in our cloud. Cancel and you keep everything — it was never gone.
Offline mode
Dead zone between shelf B and C? Scans wait in the queue and post themselves as soon as you’re back online.
eBay connection
Sold means deducted, cancelled means restocked — every 10 minutes, automatically. Overselling stops.
Photo → listing
Take photos, they land in Drive, listing drafts come out in batches. Your evening is yours again.
A log, not a debate
Every booking is in the log: who, what, when, how many. “Who booked that?” answers itself.
Your sheet talks to eBay.
Every ten minutes, StackStock syncs — both ways: orders deduct stock, cancellations put it back, and when you change a price in the sheet, the eBay listing follows. You watch it happen — line by line.
> scan 4006381333931
✓ Stabilo Boss 4-pack · shelf B-07 · 42 → 54
> ebay sync
✓ 3 orders deducted · 1 cancellation restocked
> price B-07 → €24.90
✓ eBay listing updated · 14:32:07
Three steps. No manual.
Connect your sheet
Connect your Google account, pick a sheet, columns are detected. Nothing gets imported or restructured — you’re scanning in five minutes.
Scan
Goods in, picking, stocktake: scan, type the quantity, book it. Unknown EANs get looked up automatically.
Sell
eBay orders deduct themselves. You always know what’s where — and what’s actually still in stock.
No migration, no risk.
Your existing sheet stays the single source — nothing is imported or copied. And if you stop, you simply keep everything: it’s your data, after all.
Built for sellers where no two items are alike.
Catalog inventory systems think in SKUs with a quantity of 500. StackStock thinks in single items with a barcode, a shelf slot and their own history — never hunt for a sold item again.
Pallet in, drafts out.
Two return pallets a month, 800 one-offs on the shelves. Photograph, scan, put away — the eBay drafts happen on the side. An evening of listing becomes an hour.
Three subscriptions cancelled, one sheet kept.
Inventory suite, accounting connector, Excel duct tape — StackStock bundles it at one flat price. And since your stock has lived in your sheet all along, there’s nothing to migrate.
The DAC7 letter arrived?
From 30 sales a year, the platform reports you to the tax office. With a complete change log and clean stock records from day one, your accountant stays relaxed.
Built for the warehouse, not the office.
Big buttons, high contrast — works with gloves on, in bad light, on grumpy warehouse Wi-Fi. German or English, automatically.
- SCAN → SHEET
0.8 s - SETUP
5 MIN - EBAY SYNC
10 MIN
StackStock was born at SP Onlinehandel — built because we needed it for our own eBay warehouse. It has been running there in production since day one.
Honest as a tally sheet.
FOR COMPARISON · INVENTORY SUITE + ACCOUNTING CONNECTOR AT 500 ORDERS/MONTH: ≈ €180* · STACKSTOCK: ONE PRICE, YOUR SHEET
SHEET SOLO
For you and your warehouse.€19/ month
- Scanning + offline queue
- EAN lookup included
- Complete change log
- Your sheet stays yours
SHEET POWERSELLER
For teams serious about eBay.€49/ user · month
- Everything in Sheet Solo
- eBay sync every 10 minutes
- Photo → listing in batches
- Multiple sheets + locations
- Personal support
SHEET ENTERPRISE
Custom implementation for multiple warehouses.On request
- Integration with your existing systems
- SSO / SAML
- Locations + permissions
- Audit export
- Onboarding on site or remote
All plans: 14 days free, no credit card required, cancel any time. When you cancel, you keep your sheet — of course, it was never gone.
* Billbee + PayJoe, list prices as of 08/2026