Most independent sellers hit the same wall eventually. Their spreadsheet breaks, they oversell something they don’t have, and the enterprise tools that could actually help cost more per month than their entire profit margin. That gap has been sitting there for years, mostly ignored.
StockSync is a mobile-first inventory management tool built specifically for eBay, Amazon, and Vinted sellers, as well as small warehouse operators who need real visibility over their stock without paying corporate software prices. It tracks inventory, calculates true profit after fees, detects dead stock, and flags low stock before you run out. All from one clean dashboard.
The founder, Evan Willoughby, built it after years of warehouse work and running his own resale business across multiple platforms. That background shows. This isn’t a stripped-down enterprise tool with features removed. It’s something designed from scratch for how real sellers actually work.
Key Features of StockSync
Camera Barcode Scanner
No external hardware needed. StockSync uses your phone camera to scan barcodes and update stock levels instantly. One early user mentioned it saves her an hour every week on dispatch alone. That adds up fast across a busy selling season.
Dead Stock Detector
This might be the most quietly useful feature in the whole product. StockSync identifies items that haven’t moved in 30, 60, or 90 days and shows you exactly how much cash is sitting idle in unsold inventory. One Vinted seller cleared over £400 of old listings in his first week after seeing the numbers laid out plainly.
Real Profit Calculator
Selling price is not the same as profit. Platform fees, shipping costs, and Vinted’s specific charges can eat into margins in ways that aren’t obvious until you look closely. StockSync calculates your actual margin per item, colour-coded so you can see at a glance what’s worth listing and what’s quietly costing you money.
Smart Restock Suggestions
Based on your actual sales velocity, StockSync predicts when each SKU will run out and tells you precisely how much to reorder. It prioritises by urgency, so critical items get flagged before you accidentally run dry on a Friday afternoon.
Low Stock Alerts and Royal Mail Export
Set your own threshold per product. You get alerted before you hit zero, not after an angry buyer is already waiting. And when orders are ready to ship, StockSync exports directly in Royal Mail Click and Drop format. One tap, no reformatting required.
James T. Clears £400 of Dead Stock on a Tuesday Morning
James T. is a Vinted reseller based in Birmingham. At around 9am on a Tuesday, he logged into StockSync for the first time after setting up his account the night before. He had roughly 140 SKUs spread across Vinted and eBay, most of them second-hand clothing and accessories sourced from car boot sales and charity shops.
He headed straight to the Dead Stock Detector. Within two minutes, StockSync had surfaced 14 items that hadn’t sold in over 60 days, with a combined estimated value of £1,247 sitting idle. Several of them he’d completely forgotten he even owned.
He repriced eight of the items that afternoon, dropping them to clear-out prices. By the end of that first week, he’d moved most of them and freed up over £400 in cash. More importantly, he said he finally understood which categories were actually performing and which ones he’d been restocking out of habit rather than data.
That kind of clarity isn’t dramatic. But for someone managing hundreds of SKUs from a home setup, it’s exactly what changes the way you buy and list going forward.
How StockSync Works in Practice
Step 1: Set Up Your Inventory
Sign up, create your account, and start adding products. Each item gets its own SKU, category, pricing, supplier details, and storage location. You can type barcodes manually or scan them with your phone camera. Setup takes under two minutes according to the site, and that tracks with what users report.
Step 2: Log Sales and Track Movement
As orders come in across eBay, Amazon, or Vinted, you log them inside StockSync. The dashboard updates stock levels, revenue, and margins in real time. Every sale and restock is recorded in the movement history.
Step 3: Let the Insights Do the Work
Once you have a few weeks of data, the Smart Restock and Dead Stock features become genuinely useful. The profit calculator is colour-coded, so spotting underperforming listings takes seconds, not an hour of spreadsheet work. Low stock alerts fire before you’re caught short, and Royal Mail exports are ready with a single tap.
Pricing
StockSync offers a free plan with no credit card required. Paid plans start at £9.99 per month for the Starter tier. The Pro plan is £19.99 per month, which includes multi-location storage support and the full feature set. Compared to Linnworks at £449 per month, that’s a saving of around £429 every single month for sellers who don’t need an enterprise logistics suite.
Worth Trying If You Sell Across Multiple Platforms
StockSync is a practical, well-considered tool for independent sellers who’ve outgrown spreadsheets but don’t need (or want to pay for) enterprise software. The dead stock detector and profit calculator alone are worth the signup. Start with the free trial at stocksyncapp.com and see what your inventory is actually telling you.
