Stocky stopped working on 31 August 2026, and a lot of stores are now picking a replacement under time pressure. Most "best apps" lists are unhelpful here because they rank tools that aren't competing for the same job — a $19/month reorder calculator and a $199/month demand planning platform end up in the same numbered list as though you'd choose between them.
You won't. They serve different sized businesses. So this compares them by tier first, and gives you a way to work out which tier you're in before you look at any feature list.
First: which problem do you actually have?
Inventory tools split into two jobs that get confused constantly:
- Operations — receiving, put-away, bin locations, transfers between locations, cycle counts. This is warehouse work, and it starts mattering once you have staff touching stock.
- Planning — how fast something sells, when to reorder it, how much to order, how much buffer to hold. This matters from your very first supplier lead time.
Stocky did a bit of both, which is why replacing it feels harder than it should. Shopify admin now covers a decent amount of the operations side — tracking, transfers, adjustments and low-stock alerts. What it does not do at all is the planning side. If you only ever used Stocky to see what was running low, you may genuinely not need another app.
The apps below are planning tools.
The three tiers, with real numbers
Prices and review counts below were checked on the Shopify App Store on 2 September 2026. They move, so treat them as a snapshot rather than gospel.
Enterprise — quote-based
Inventory Planner by Sage — 4.4★ from 130 reviews. Free to install, then custom pricing you get by talking to sales. It's the most established option here, owned by Sage, and it covers multi-channel reporting, cash-flow planning, turnover tracking and automated replenishment. Onboarding is led by their team.
This is the right answer if you have several sales channels, real purchasing volume, and someone whose job includes inventory. It is the wrong answer if you're one person with 200 SKUs — you'll pay for a platform and use a tenth of it.
Mid-market — $49 to $199 a month
Prediko — 4.9★ from 234 reviews, with tiers at $49 and $119 a month. The strongest review record of anything in this comparison, and by a wide margin the most socially proven option if you want to follow the crowd.
Cogsy — 4.9★ from 12 reviews, $199 a month. Positioned further up market, with a small but very positive review base.
At this tier you're buying demand planning rather than a reorder calculator: seasonality, purchase order workflows, supplier management. Worth it once the cost of being wrong about an order exceeds the subscription — which, for most stores, is sooner than they think. One bad reorder decision on a best seller can cost more in a month than a year of any of these.
Small and self-serve — free to $49 a month
This is where the post-Stocky wave landed, and where you should be careful: several apps launched into this space in mid-2026, most with no reviews yet. Cheap and unproven is a real trade-off, not a free lunch. Check the launch date and review count on any listing before you trust it with purchasing decisions.
Foreshelf — the app I build — sits here: free for up to 50 SKUs, then $19 and $49 a month. To be straight with you, it launched on 30 July 2026 and has no reviews yet. If review count is how you filter, that rules it out, and that's a reasonable way to filter. What it does differently is show the arithmetic behind every recommendation rather than returning a number — "sells 5/day, 12 days of stock left, 14-day lead time → reorder 90 now" — so you can disagree with it when you know something it doesn't.
What actually separates them
Feature lists mostly rhyme. These four questions don't:
- Can you see why it recommended a number? A recommendation you can't interrogate is one you can't overrule. This matters most when you know something the data doesn't — a supplier delay, a campaign next month, a product you're discontinuing.
- How does it treat stockout days? A week where you sold nothing because you had nothing is not a week of zero demand. Tools that don't exclude those days will systematically under-order the things you sell best. Ask directly; it's rarely in the marketing.
- Does it write to your store? A planning tool needs to read products, orders and inventory. It doesn't need write access. One that takes it is holding risk on your behalf that it isn't being paid for.
- How long until the first useful number? Tools that need a full supplier and lead-time build-out before producing anything tend to get abandoned in week two. You want a reorder list this week.
How to actually choose
Pick the product you'd be most upset to run out of. Then check whether the tool tells you two things: when to reorder it, and how much. Not that it's low — when, and how much. A low-stock alert says you're nearly out. A reorder point says you should have ordered two weeks ago. Every app here claims the second; not all of them do it in a way you can act on.
If you're coming from Stocky, one practical note: Shopify states that suppliers can't be exported from Stocky. Completed purchase order reports do export and carry supplier names against products, so build one spreadsheet with SKU, supplier and lead time from those. You keep read-only export access for at least 90 days past 31 August, so this is still possible — but not for much longer. See migrating off Stocky for the full process.
The short version
- Multi-channel, staff, real volume → Inventory Planner.
- Growing, want the most proven option → Prediko, on review record alone.
- Under 50 SKUs, want to start free → the small tier, but check launch dates and review counts before trusting any of it with purchasing.
- Only ever used Stocky for low-stock alerts → Shopify admin may be enough.
Whatever you pick, the number that matters is not the subscription. It's what a stockout on your best seller costs you in a month — and whether the tool would have caught it.