Guide · Updated October 30, 2026

Boost AI Search was delisted from the App Store. Here's what we know — and what to do.

Boost AI Search & Filter has been one of the most-installed search apps on Shopify for years. As of late October 2026, its App Store listing is unavailable, so new stores can't install it. If you rely on it — or were about to — here's a factual summary and a calm way to think about next steps.

What happened (per public reports)

Between roughly October 10 and 23, 2026, several popular Shopify apps were compromised in a wave of attacks in which malicious code was injected through vendor systems, redirecting shoppers to fake checkout pages. Agency and ecosystem reports name Boost AI Search & Filter among the affected apps (October 17), alongside others. Shopify temporarily disabled the app's theme extension globally, then re-enabled it for existing stores on October 18. During the same period, Shopify ran a broad security sweep in which hundreds of apps were delisted. App trackers record Boost's listing as removed from the App Store on October 29, 2026.

To be clear: by these accounts Boost was a victim of an attack, and its team has been operating since 2017. None of this is a verdict on the product. But if your store's search — a revenue-critical surface — runs through any third-party app, this month is a reasonable prompt to re-evaluate how that surface is secured.

If you currently use Boost

Verify your storefront search works, watch for an incident report from the vendor, and check whether your store was among those affected. There is no need to panic-uninstall a working app — but it is sensible to know what your fallback would be if the listing stays down or support degrades, because reinstalling later may not be possible until the listing returns.

If you were shopping for a search app

Your realistic options right now: Shopify's free Search & Discovery app (no cost, but rated 2.6★ as of October 2026 — its forced semantic search breaks SKU and exact matching, and it caps filters at 25); other established paid apps (Searchanise, Doofinder, Fast Simon and others — compare pricing models carefully, as session- and usage-metered billing is the most common complaint in their reviews); or newer entrants built after these events with security and performance as table stakes.

A post-incident checklist for any search app

1) Theme app extension only, with assets served from Shopify's CDN — no arbitrary third-party scripts injected into your storefront. 2) Small, deferred storefront JavaScript (ask for the bundle size; Shopify's own bar is ≤10 Lighthouse points of impact). 3) Flat, predictable pricing. 4) A vendor who answers email and publishes honestly about incidents and uptime.