once a Shopify app category hits 70%+ concentration, new entrants don't just face a product challenge.
they face a trust deficit that compounds with every review the incumbent earns.
workflow automation: 86%. that's not a market. that's a closed door.
shipping is the most fragmented major category in the Shopify App Store.
top app: 10% of all reviews.
28 apps competing.
no default.
for merchants: don't sort by reviews here. filter by your use case.
Meta's Facebook & Instagram app has 3,903 Shopify reviews.
its rating: 3.5 stars.
the ads category still has a concentration gap that a better product could fill.
the middle ground is where it gets interesting.
ads: TikTok holds 54%, but Meta has 21%. that's a duopoly — and Meta's rating is 3.5 stars. a better product has real room.
subscriptions: Appstle leads at 53%, Recharge has 2,093 reviews. contestable.
the most competitive: shipping.
top app holds 10% across 28 apps. no clear winner.
cart customisation: 12.5% across 40 apps. discounts: 16.5% across 44. product bundles: 17% across 38.
these categories haven't settled. the door is open.
the most monopolised: workflow automation.
Shopify Flow holds 86% of all reviews. 2nd place has 214.
that's a 42x lead. the category isn't competitive — it's over.
we mapped review concentration across every Shopify app category.
the range: 10% to 86%.
that gap tells you everything about which categories are settled and which are still up for grabs. 🧵