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Horse Inventory alternatives, weighed honestly

Horse is a small, perfectly-reviewed Shopify inventory app doing purchase orders, forecasting and multi-store sync, priced by monthly sales volume. Where that combination fits, and what to weigh against it.

Updated 16 September 2026

Horse Inventory, by Cyber Office Industries in Montreal, is the smallest app in this comparison set and the best rated: 26 reviews, 5.0, every one of them five stars as of today. It is also unusual in scope — purchase-order automation and forecasting and multi-store sync between Shopify stores, which almost nothing else in the direct tier attempts.

What Horse is good at

• Two jobs in one app. Purchase orders with restock recommendations, plus inventory sync between multiple Shopify shops. Most merchants otherwise buy a purchasing tool and a sync tool separately.
• Shopify-only focus. No marketplace abstraction layer, no channel vocabulary — it assumes Shopify, which keeps the concepts closer to how you actually work.
• Founder-level support, which is what a run of unbroken five-star reviews in this category usually means.
• A sales-volume pricing axis. Free to 50 sales a month, then $20/$30/$50 by volume. A large catalogue with modest order flow costs less here than on any per-product or per-variant plan.

What to weigh

The review base is thin. 26 reviews is evidence, but it is not the same evidence as 400. In a category where the failure mode is silent — a dashboard saying “synced” while counts diverge — a longer record has real value. This cuts against StockUnison far harder than against Horse, and it is stated here for the same reason it is stated below.

The pricing axis steps up when you are busiest. Volume-based tiers are gentle on quiet months and move in your peak ones — the inverse of catalogue-based pricing. Neither is wrong; model yours.

Bundled scope is a coupling. If the purchasing half stops fitting, you are moving both halves. Merchants who grow into several stores commonly split the two jobs across two specialists.

The alternatives, by the job you actually have

What the plan meters

Horse is the only app in this category priced by sales a month: free to 50, $20 to 400, $30 to 1,000, $50 unlimited, with 14-day trials on the paid tiers. Today its listing shows 32 reviews at 5.0.

That axis is the most forgiving one here for a large catalogue. Fifty thousand variants on a per-product plan is a top tier everywhere else; here it is free until the fiftieth sale of the month. The cost is that the meter moves with your success rather than your complexity, and it steps up in exactly the months you are busiest — the mirror image of the per-variant apps, and the reason the meter, not the price, is what to compare.

In practice: take a 40,000-variant catalogue doing 300 sales a month. Here that is the $20 tier. On a per-variant plan elsewhere in this category the same shop is on a top tier — $79 at Tipo, $100 at Synkro, $59.99 at Easify — for the same work. Now flip it: a 400-variant shop doing 2,000 sales a month pays $50 here and $9 to $19 almost anywhere else. Neither meter is fairer than the other; they are simply aimed at different shops, and yours is one of the two. The top tier is worth noting too: $50 for unlimited sales is a ceiling rather than a ladder, so a shop that grows into it stops thinking about this line item entirely — which is unusual in a category where most plans keep climbing.

What happens if you leave

An app that generates purchase orders and forecasts holds records your accounting cares about, which makes the exit a different question from a sync app’s. Ask what becomes of open purchase orders, and whether the forecast history is exportable before you disconnect rather than after.

For the sync half, the question is the standard one for this category: nothing in the 2,603 reviews we read describes a bad exit from this app, which is weak evidence rather than a guarantee — nineteen of those reviews mention disconnecting at all, and ten of the nineteen are one-star. The checklist takes ten minutes and applies to every app on this page. Worth noting on the way in as well as out: the free tier here is a real tier rather than a trial, so a small shop can run on it indefinitely and only meets the pricing question at the fiftieth sale of a month.

Where StockUnison sits, with the caveat

StockUnison overlaps only Horse’s sync half, and is narrower even there: one-way only, Shopify to Shopify, inventory quantities, from one nominated source into any number of destinations. No purchase orders, no forecasting, no restock suggestions.

What the narrowness buys is the guardrails: preview mode on every connection before anything is written, duplicate SKUs reported and never synced, no product ever created or deleted in a connected store, conditional writes that are rejected and retried rather than overwriting a value that moved, and a difference report for what webhooks miss. Pricing is per live connected store, and neither catalogue size nor order volume changes it.

The caveat, and here it is sharper than usual: Horse has 32 reviews and a perfect record. StockUnison has none at all. If you are choosing between two small vendors, the one with a track record is the safer pick, and this page is not going to pretend otherwise. The free plan — matching, preview mode and difference checks against an unlimited catalogue, never writing to a destination — exists so the comparison can be made against your own data rather than on either vendor’s word.

Listing figures read from the public App Store listing on 25 August 2026. Small review bases move fast; the listing is linked so you can check today's.