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The best Shopify search and filter apps in 2026: what Shopify does free, then six apps

Shopify Search & Discovery, Klevu, Algolia, Doofinder, Boost and Searchanise. The free limits, what each bill counts and the weekly report that matters most.

A shopper who searches is telling you what they want. If the search box answers with nothing, they leave. Shopify's free search covers more than most stores think. Here is what it does, where it stops, and six apps for the rest.

Every Shopify store with an online store has predictive search and typo tolerance on by default. Search reads product titles, product types, variant titles and vendors. It also finds pages, collections and blog posts by title. Predictive search depends on the theme. Online Store 2.0 themes have it. Vintage themes do not. It shows up to 10 results as the shopper types.

The free Shopify Search & Discovery app adds storefront filters, synonym groups and product boosts. A synonym group makes "sofa" and "couch" return the same products. A boost lifts chosen products for up to 10 search terms each.

  • 25

    filters per store

  • 100

    values shown per filter

  • 5,000

    products: above this, a collection shows no filters

Limits from Shopify's Help Center, checked 12 October 2026.

Those limits are the usual reason to add an app. So is search across product descriptions and tags, or merchandising rules per collection.

AppWhat the bill countsFree plan or trial
Shopify Search & DiscoveryNothing: freeFree
Klevu (Athos Commerce)Volume tiers: impressions, page views or searches14-day trial on the listing
AlgoliaSearch requests and recordsFree plan: 10,000 requests, 50,000 records a month
DoofinderSearch requests a month15-day trial on the listing
Boost AI Search & FilterMonthly GMV, averaged over three monthsFree trial
SearchaniseNumber of productsFree under 25 products
From each vendor's own pages, checked 12 October 2026.

Klevu: AI search for larger catalogues

Klevu offers AI site search, merchandising and recommendations. It merged with Searchspring in January 2025 to form Athos Commerce. Athos says Klevu will be supported for at least two years. Plans bill on volume tiers. The Shopify listing and Klevu's own page quote different prices, so check the live page. The listing shows a 14-day trial.

Algolia: for teams with a developer

Algolia is a hosted search platform. Its free plan covers 10,000 search requests and 50,000 records a month. On the Grow plan you pay for usage above that. Algolia bills you directly, outside your Shopify invoice. Expect setup and tuning work. A store with a developer gets the most from it.

Doofinder: billed by searches

Doofinder is hosted AI search with real-time indexing on Shopify. Plans bill by search requests a month. Index updates count as requests too. Doofinder's help says search keeps running past your quota. You get a warning above 120% of your plan. Exceed it by over 20% for three months, and Doofinder may move you up a plan.

Boost: billed by your revenue

Boost AI Search & Filter prices by monthly GMV, averaged over the last three months. Plans start at $29 a month. Above your tier's ceiling you pay $2 per $1,000 of GMV. That overage is capped at the next tier's fee. Billing is monthly only. A strong sales month can move you up a tier.

Searchanise: billed by catalogue size

Searchanise prices by product count. Basic is $19 a month for up to 1,500 products. Essential is $39 for up to 7,500. The free plan covers development stores and stores under 25 products. Paid plans have a 14-day trial.

What each bill follows

Bill follows store sizeBill follows usage
Size-based, quick to start
SearchaniseBoost
Size-based, more to set up
Usage-based, quick to start
Doofinder
Usage-based, built for developers
KlevuAlgolia
Little setupMore setup
Our reading of each vendor's published plans, checked 12 October 2026. It places each app; it does not score them.

The weekly report that pays for any of them

Every app on this list reports searches that found nothing. Read that report each week. Each line is one of two things. A product you stock under a name shoppers do not use. Or a product people want and you do not sell.

A 15-minute weekly routine

  1. 01

    Export

    Pull last week's searches with no results.

  2. 02

    Sort

    Mark each one: wrong name, or missing product.

  3. 03

    Fix names

    Add a synonym group for each wrong name.

  4. 04

    Pass on the rest

    Send missing products to whoever buys stock.

Works with Shopify's free app or any app above.

Which one to try

Start here

Where does free Shopify search fall short for you?

  • It does not, yet

    Search & Discovery

    Add synonyms and filters first. It costs nothing.

    • Over 25 filters needed: Try Searchanise or Boost
  • A large catalogue on a budget

    Searchanise

    Priced by product count.

    • Revenue is small for the catalogue size: Compare Boost, priced by GMV
  • Heavy search traffic and a developer

    Algolia

    Free plan to start, then pay per use.

    • No developer: Compare Doofinder
A starting point from each vendor's published plans. Confirm on the live listing.

Where Idukki fits (ours)

We make Idukki. It shows customer photos, video and reviews as shoppable galleries. It does not run your store search. A shopper who finds a product through search still wants proof before buying. That is the job Idukki does. For the full set of jobs, read the best Shopify apps to increase conversion.

Questions store owners ask

  • Is Shopify search good enough?

    For many stores, yes. It has predictive search and typo tolerance on Online Store 2.0 themes. The free Search & Discovery app adds filters, synonyms and boosts.

  • How many filters does Shopify allow?

    Search & Discovery allows 25 filters per store. Each shows up to 100 values. Collections with over 5,000 products show no filters.

  • Are Klevu and Searchspring the same company?

    Yes. They merged in January 2025 to form Athos Commerce.

  • Which search app is cheapest?

    Shopify Search & Discovery is free. Searchanise is free under 25 products, then $19 a month for up to 1,500.

Sources

  1. 1Shopify Help: storefront search · Defaults and searched fields.
  2. 2Shopify Help: predictive search · Theme support, 10 results.
  3. 3Shopify Help: Search & Discovery filters · Filter limits.
  4. 4Shopify Help: modify search results · Boosts and synonyms.
  5. 5Athos Commerce announcement · Klevu and Searchspring merger.
  6. 6Klevu on the Shopify App Store · Tiers and trial.
  7. 7Algolia free plan · Requests and records.
  8. 8Algolia: Grow plan billing · Usage billing.
  9. 9Doofinder: how usage is calculated · Requests and quota.
  10. 10Boost: GMV-based subscription FAQ · GMV billing and overage.
  11. 11Searchanise pricing · Product-count tiers.
#search#filters#best-of#shopify-apps#conversion

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