Know what to buy before it runs out.
The stock and purchasing app for small shops that sell from more than one store. Share stock with a partner store, scan with your phone, and buy only what actually sells — within the cash you have.
Free for pilot retailers · No hardware needed · Works on any phone
| Product · variant | Stock | Status | Buy |
|---|---|---|---|
| Wireless Earbuds · Black | 0 | Sold out · sells well | 24 |
| USB-C Cable 1m · White | 3 | Runs out in 4 days | 12 |
| Phone Case · Clear | 58 | OK · 3 months | — |
| Power Bank 10k · Blue | 0 | Never sold | — |
| Smart Watch Strap · Red | 12 | Sells only on promo | — |
Three steps, then it keeps itself up to date
Every sale, purchase and transfer moves the right stock. You only decide what to buy.
Products with variants (color, size, flavor). Scan the barcode with your phone to receive stock.
Each sale leaves from your stock or your partner's, and records which side — so returns go back to the right place.
See what sold out while selling well, what never sold, and get a purchase order that fits your cash.
Separates real demand from promo spikes
A one-week sale can triple a product's numbers. OPRE Stock splits regular-price sales from promo sales, so you don't buy 200 units of something that sells 1.5 a day at full price.
- Per variant: sold out vs. never sold
- Days of stock left at today's pace
- Order rounded to supplier minimums
Share stock with another store
Two stores, one view. See your stock and your partner's side by side, sell from either, and settle by swapping variants instead of paying a markup.
- Each item records which store it left from
- Partner stock is read-only on your side
- Wholesale orders with per-buyer prices
You can't buy more than you have
Purchases come out of a restock cash box that sales fill automatically. When the order arrives, unit cost is calculated and stock goes up — margins stay honest.
- Cash split: restock, improvements, investment
- Unit cost = paid ÷ units received
- Cancel a purchase, the money goes back
Scan to receive. Scan to pack.
No scanner hardware. Barcodes to receive stock, and a staff-only QR on every shipping label that opens the order as a checklist — one line per unit, so nothing gets missed.
- Anyone else scanning the label sees only a code
- Works for owners and staff accounts
Ask what to buy. Get an order you can send.
We built OPRE Stock with Claude Code. Next, Claude goes inside the product: a purchasing assistant that reads your sales and cash, and a parser that turns supplier price lists — sent as plain text messages — into catalog data.
| Wireless Earbuds · Black | 24 × $28 |
| USB-C Cable 1m · White | 12 × $6 |
| Charger 20W | 20 × $27 |
Preview of the planned assistant, with sample data.
From the founder
We run two small stores in Curitiba with same-day delivery. Every week we lost hours in spreadsheets trying to answer one question: what do we buy, and how much? A big promo made a product look like a best-seller; the next week we were stuck with boxes of it.
So we built the tool we needed — shared stock with our partner store, scanning by phone, purchases tied to real cash, and restock from regular sales. It runs both stores every day. Now we want to put it in the hands of other small retailers.
— Wallen, founder · [email protected]
Simple pricing
We're onboarding a small group of pilot retailers. Pilot access is free while we build the AI features with you.
Pilot
For the first retailers
- Up to 2 stores with shared stock
- Restock and purchase planning
- Phone scanning and staff-only labels
- Direct line to the founder
Pro
After the pilot
- Everything in Pilot
- Claude purchasing assistant
- Supplier price-list import
- More stores and staff accounts
Questions
Who is it for?
Small retailers with one to a few stores — especially shops that share stock with a partner store, sell by WhatsApp or a simple online store, and deliver locally.
Do I need a barcode scanner?
No. Any phone camera reads barcodes and QR codes inside the app.
How does shared stock work?
Each store keeps its own stock. You can see your partner's stock (read-only) and sell from it; every item records which store it left from, so cancellations and returns go back to the right side.
How is the restock suggestion calculated?
From your sales per variant, split into regular-price and promo sales, compared with current stock and the cash available for restock.
Is the AI assistant available now?
Not yet. The core app is live in two stores; the Claude-based purchasing assistant and price-list parser are what we're building next.
Where is my data stored?
In a managed Postgres database with row-level security. Staff accounts only see what their role allows.
How much does it cost?
Free for pilot retailers. Paid plans will be announced before the pilot ends, with notice to every pilot account.
Stop guessing what to buy.
Tell us about your stores and we'll set you up as a pilot retailer.
Request early access