StackFit Commerce

Shopify site search and filtering comparison

Boost AI Search & Filter vs Klevu AI Search & Discovery: choose by fit, not feature count.

Both options help with site search and filtering, but they suit different stores and ways of working. Start with the problem you need to solve and the result you expect before comparing features.

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Researched and reviewed by Matt CockingUpdated 21 August 20267-minute read

Boost AI Search & FilterRead guidevsKlevu AI Search & DiscoveryRead guide

The verdict

Which route sounds most like your store?

Choose Boost AI Search & Filter when Medium and large catalogues. Choose Klevu AI Search & Discovery when Large catalogues. Choose neither if your current setup already does enough or the expected improvement would not justify the extra cost and work.

Choose Boost AI Search & Filter when

Boost AI Search & Filter

Medium and large catalogues. Use Boost when catalogue discovery has outgrown Shopify’s native search but enterprise search is not yet justified.

Wait before choosing either

Neither app is the next step

Wait if the site search and filtering problem is still occasional, your current setup already handles it or your team does not have time to use either app well.

See what to fix first

Best fit

Choose the statement closest to your store.

Boost AI Search & Filter is the stronger fit when:

  • Medium and large catalogues
  • Teams needing richer collection filters and merchandising
  • It is a strong growth-stage option for richer filters, merchandising and search controls across a larger catalogue.
Read the Boost AI Search & Filter guide

At a glance

The differences that should affect your decision.

Use this to narrow the choice, then verify current pricing and compatibility before installing anything.

What mattersBoost AI Search & FilterKlevu AI Search & Discovery
Best fitYour needs decide this

Boost AI Search & FilterMedium and large catalogues

Klevu AI Search & DiscoveryLarge catalogues

Primary jobYour needs decide this

Boost AI Search & FilterIt is a strong growth-stage option for richer filters, merchandising and search controls across a larger catalogue.

Klevu AI Search & DiscoveryIts best fit is a large catalogue, meaningful search volume and a team able to manage relevance, merchandising and integration complexity.

What you getYour needs decide this

Boost AI Search & FilterSearch relevance, Collection filters, Merchandising rules

Klevu AI Search & DiscoverySearch relevance, Collection filters, Merchandising rules

Important limitationYour needs decide this

Boost AI Search & FilterRequires clean product attributes and ongoing merchandising ownership.

Klevu AI Search & DiscoveryCustom pricing and implementation overhead make it unsuitable for speculative adoption.

Price when reviewed

Boost AI Search & FilterFrom USD 29/monthSubscription

Klevu AI Search & DiscoveryConfirm current pricingCustom

Setup effort

Boost AI Search & FilterHeavier setup

Klevu AI Search & DiscoveryConfirm before starting

Practical setup plan

See what choosing each app asks you to do.

These are the minimum steps for a controlled launch. The full app guides contain the detailed walkthroughs.

If you choose

Boost AI Search & Filter

Use Boost AI Search & Filter for a controlled first use case and expand only after the result is proven.

  1. Audit top searches, zero-result queries, filter usage and merchandising requirements.
  2. Configure synonyms, ranking rules, filters and collection behaviour in Boost AI Search & Filter.
  3. Test theme integration, mobile usability and catalogue edge cases.
  4. Launch to a controlled traffic or catalogue segment where possible.
Open the full Boost AI Search & Filter setup guide
If you choose

Klevu AI Search & Discovery

Use Klevu AI Search & Discovery for a controlled first use case and expand only after the result is proven.

  1. Audit top searches, zero-result queries, filter usage and merchandising requirements.
  2. Configure synonyms, ranking rules, filters and collection behaviour in Klevu AI Search & Discovery.
  3. Test theme integration, mobile usability and catalogue edge cases.
  4. Launch to a controlled traffic or catalogue segment where possible.
Open the full Klevu AI Search & Discovery setup guide
Whichever you choose

Complete these checks before launch

  • The complete customer and operational journey works on mobile and desktop.
  • Required Shopify data and integrations update once and in the intended place.
  • A named owner can resolve common failures without unsafe access or manual workarounds.
  • The measured value is compared with software cost, team time and new support demand.

Before you spend

Wait if any of these sound familiar.

Buying an app will not solve these gaps. Complete the checks below first, then return to the comparison with a clearer brief.

  1. 01

    Very small catalogues adequately served by native search

  2. 02

    Small stores without search volume or dedicated merchandising ownership

  3. 03

    The problem is still occasional, your current setup already handles it or neither app would create enough value to justify the extra cost and work.

Not sure whether your store is ready?

The free assessment shows what deserves attention now and what can wait.

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Your next route

Research, try or get a store-specific answer.

Boost AI Search & Filter

Medium and large catalogues. Use Boost when catalogue discovery has outgrown Shopify’s native search but enterprise search is not yet justified.

Starting price
From USD 29/month
Setup
Heavier setup

Klevu AI Search & Discovery

Large catalogues. Consider Klevu when search and product discovery are enterprise-level revenue levers.

Starting price
Confirm current pricing
Setup
Confirm before starting

Not ready to choose?

Find out what your store needs first.

Use the free assessment to see whether this category deserves attention now.

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Frequently asked questions

Common questions before you decide.

Is Boost AI Search & Filter better than Klevu AI Search & Discovery?

Not automatically. Boost AI Search & Filter is the better fit when medium and large catalogues. Klevu AI Search & Discovery is the better fit when large catalogues.

Which is easier to set up: Boost AI Search & Filter or Klevu AI Search & Discovery?

Boost AI Search & Filter is currently classed as heavier setup, while Klevu AI Search & Discovery is confirm before starting. The real effort depends on your data, integrations, theme and the number of workflows you enable.

How should I test Boost AI Search & Filter against Klevu AI Search & Discovery before committing?

Choose one real customer journey and one measurable outcome. Complete the same checks for both options, including the complete customer and operational journey works on mobile and desktop. and required shopify data and integrations update once and in the intended place., then compare the result and the work your team had to do.

What should I measure after choosing Boost AI Search & Filter or Klevu AI Search & Discovery?

Record the current result before launch, then measure the customer outcome the app is meant to improve alongside app cost, support demand, errors and the time required to run it. Keep the app only when the total value is clear.

Can I switch between Boost AI Search & Filter and Klevu AI Search & Discovery later?

Usually, but switching can affect settings, customer data, theme placements, integrations and reporting. Export what you can, document the current setup and test the replacement before removing the original app.

View the official sources used for this comparison

Pricing and product features can change. Check the current app listing before purchasing. Affiliate availability never affects the comparison.

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