A Shopify app that knows what to reorder, how much, and from which supplier.
It watches how fast each product actually sells and how long each supplier actually takes to deliver, then tells you to order before you run out — and turns the answer into a purchase order you can send, receive, and have update your Shopify stock. It counts the shelf too, on the phone in your pocket. Built for shops that hold stock and reorder weekly.
Used Stocky? Styrla imports your Stocky purchase-order export on every plan, including Free.
The rest of the app, from the same store
A development store with 312 products, nine suppliers and 60 days of orders. Nothing here is a mock-up; every number was computed by the app.
Four jobs, done from data you already have
Nothing here needs a forecast you have to believe in. It needs your sales history, your stock levels, and how long your suppliers really take.
How fast it really sells
A blend of the last 30 and 60 days, weighted toward the recent month, so a good week moves the number without a good quarter anchoring it. Days the shelf was empty are left out: being sold out is not slow demand, and counting it as such is how a product that keeps running out gets ordered in ever smaller quantities. New products are judged on the days they have existed; products with too little history are flagged, not guessed at.
When to order
Daily sales × (the supplier's delivery time + your safety days) is the stock level at which you must order. Styrla compares it with what you have and what is already on its way, and tells you the last day to order. A supplier that is slow and erratic gets more safety days on its own.
What to send, and what arrived
Everything due from one supplier drafted into one purchase order, rounded to pack sizes and minimums. Email it as PDF, print it, then receive the delivery — Styrla adds exactly what arrived to your Shopify stock, and nothing else.
What is actually on the shelf
Count with any scanner that types, or by hand on the phone in your pocket. Every entry is saved as you make it, so closing the app loses nothing. The difference against Shopify is shown in money as well as units, so you can see what a count is worth without rebuilding it in a spreadsheet. Nothing is written to your stock until you press the button, and a product you never counted is never quietly set to zero.
How one row is worked out
The same four lines, on every product, in words a shop owner uses. Check them against your own numbers; if you disagree, change a setting, not your trust.
| Step | Calculation | Result |
|---|---|---|
| Order when stock falls to | 3.2 × (14 + 7) | 67 units |
| Where you are | 40 in stock + 0 on order | 40 — below 67 |
| Days of stock | 40 ÷ 3.2 | 12 days — fewer than the 14 the supplier needs |
| Order quantity | 3.2 × (14 + 30) − 40 = 100.8, rounded up to packs of 6 | 102 units |
Daily sales blend the last 30 and 60 days, weighted toward the recent one, counting only the days the product was actually on the shelf. Safety days rise on their own for a supplier whose measured deliveries vary. All three numbers are settings you can see and change.
Counting the shelf, in the Shopify app on your phone
One supplier's 29 products, counted inside the Shopify app you already have, in the same development store as the screens above. Nothing reaches your Shopify stock until the last of these three screens, and then only the products you actually counted.
The number everything depends on, and the number everyone guesses
When to order is only as good as the delivery time behind it. A number typed in once never learns, and it hides the difference between a supplier who is usually late and one who is occasionally very late.
Styrla measures it instead — from your purchase orders, order by order: how long each supplier usually takes, and how long on a slow month. A supplier at 46 days usually but 55 on a slow month forces nine days of margin that a single typed-in “46” would have hidden.
Five things that stay true
Purchase orders on every plan, including Free.
Not a feature of the top tier.
No fee per order, purchase order or product.
The plan price is the whole price.
The price on this page is the price.
It does not change while you stay on your plan.
Styrla never changes your stock on its own.
Only when you receive a purchase order or apply a stock count — both on a button you press, and both showing exactly what changed.
Everything exports as CSV, always.
Suppliers, assignments, purchase orders. Nothing is locked to us.
Free under 300 products. From $39 a month above that.
Priced by catalogue size, so it grows with the shop. Published here, billed through Shopify, cancel any time.
Free
Reorder suggestions and draft purchase orders for up to 300 SKUs. Enough to run a small shop on, not just to try.
- Up to 300 products
- Stock counted across all your locations
- Suggestions, suppliers, purchase orders, receiving, stock counts
- Stocky import
Grow
The same tools for a catalogue of up to 2,000 SKUs.
- Up to 2000 products
- Stock counted across all your locations
- Suggestions, suppliers, purchase orders, receiving, stock counts
- Stocky import
Scale
Unlimited SKUs for larger catalogues.
- Unlimited products
- Stock counted across all your locations
- Suggestions, suppliers, purchase orders, receiving, stock counts
- Stocky import
Billed through Shopify. The Free plan needs no card. Paid plans start with a 14-day free trial, you can cancel any time, and the price does not change while you stay on your plan.
One person, in Sweden, who answers the email himself
Styrla is a small independent company in Sweden. There is no support team and no ticket queue: the address in the app goes straight to the person who built it, and it is usually answered the same working day. Requests for changes are welcome and often shipped within days.
The app is new, and this page has no customer logos because there are no customers yet. Saying so seemed better than inventing some.
- Your store's data is used for your store only. It is not sold, shared, or used to train anything.
- Everything exports as CSV, so nothing is locked to Styrla.
- Styrla never changes your stock on its own — only when you receive a purchase order or apply a stock count, and then it shows exactly what changed.
Questions you are probably asking
Does it cost anything to try?
No. The Free plan covers 300 products with every feature, and needs no card. Paid plans start with a 14-day free trial, billed through Shopify, cancel any time.
Will Styrla change my stock levels?
In two places, and you press a button for both: receiving a purchase order, and applying a stock count. Each writes exactly the units you typed, at the location you chose, and then shows you what changed. Never on its own, and never on a schedule.
Does a sent order show up under Incoming in Shopify?
No. Shopify fills its Incoming figure only from its own built-in purchase orders and transfers, and gives no app a way to write it. Styrla counts sent orders as incoming inside What to order, so nothing is suggested twice, and adds the units to your stock when you receive the delivery.
Do I need a special barcode scanner to count?
Any scanner that behaves as a keyboard works, which is the ordinary kind — the mode is usually called HID or keyboard wedge. It types the code into the box and sends Enter, and Styrla adds one. Plugged into a computer, or paired to a phone over Bluetooth. There is nothing to set up in Styrla. If yours sends a Tab instead of an Enter, change that in the scanner’s own settings. A scanner that needs its own app is not supported, and you can always type the code or count by hand instead. The phone’s camera is not used: Styrla has no camera scanning, so it is a scanner that types, or typing by hand.
I never used Stocky. Does it still work?
Yes. Styrla reads your Shopify sales and stock. The Stocky import is optional; without it, delivery times start at your default until you type or measure them.
How much history does it need?
Fourteen days of sales before it suggests an order for a product. Until then it shows the numbers and says so, rather than dressing a guess up as a suggestion.
I have several locations.
Suggestions count stock across all locations; receiving goes into the location you choose. Suggestions per location and transfers between them are not built yet.
What counts towards the product limit?
Every variant Shopify tracks stock for counts once, so a T-shirt in 3 colours and 4 sizes is 12. Draft and archived products and bundles don't count. Going over the limit breaks nothing: Styrla keeps watching every product, shows the most urgent ones up to your plan's limit, and tells you which plan covers the rest.
How am I billed, and how do I cancel?
Through Shopify, on the same bill as your Shopify plan. Styrla never asks for a card. Paid plans start with a 14-day free trial, once per store. Change or cancel any time under Settings in the app; cancelling stops the next charge.
Where do my suppliers come from?
Three ways, mixed as you like. One click turns the Vendor field on your products into suppliers. A Stocky purchase-order export rebuilds them, with delivery times measured from your own orders. Or add them by hand. Until a supplier has a delivery time, Styrla uses a 14-day default that you can change in Settings.
How does a purchase order reach my supplier?
Email it straight from Styrla, print it (or save it as a PDF from the print dialog), or download it as a CSV. Styrla drafts one purchase order per supplier, and nothing is sent until you send it.
What store data does Styrla read?
Products, stock levels, locations, and the quantities on your order lines. No customer names, addresses or emails. The only thing it writes is stock, and only when you receive a delivery or apply a count.
Who answers when I get stuck?
Write to valentin@styrla.com or use Help under Settings in the app. A person replies, usually the same working day.
What happens to my data if I uninstall?
Shopify sends Styrla a deletion request about 48 hours after you uninstall, and everything stored for your store is erased. Export your CSVs first if you want to keep them.
Know what to order on Monday morning
Sync takes a minute. The first suggestions appear as soon as your sales history is in.