What's the best free Shopify A/B testing option?

Shopify Rollouts is the best free choice for theme tests, and Mida's free tier (up to roughly 50k monthly tested users) is the best for content and landing-page tests. ABConvert also has a free plan covering broader test types.

Which app is best for price testing on Shopify?

Intelligems and ABConvert are the strongest for price testing, with Intelligems offering the deepest margin and profit decisioning. Omniconvert Explore added native Shopify price testing in its 3.0 release.

Native Shopify app or cross-platform tool like VWO, Convert, or Optimizely?

Native apps (Shoplift, Intelligems, ABConvert, Rollouts) install cleanly and reduce flicker, and several render server-side. Cross-platform tools are more powerful and stack-agnostic, but they need implementation and have no native Shopify checkout experiments.

What's the best A/B testing setup for an agency managing many Shopify clients?

Pair a multi-client workspace for audit and prioritization (Spar) with a per-client runner. Convert.com is also agency-friendly with unlimited projects and variations, and per-client native installs (ABConvert, Shopify Rollouts) scale cheaply.

How do I decide what to test first?

Use an audit or insight layer to rank opportunities by evidence and revenue impact before building variations. Spar's rules-library audit, Shoplift's Lift Assist, and Omniconvert's surveys and segmentation each surface where to look.

Will an A/B app slow my store down?

Native server-side tools (Rollouts, Shoplift, ABConvert, Intelligems) and lightweight scripts (Mida is around 15KB) minimize speed and flicker impact. Client-side snippet tools can flicker if they are not tuned carefully.

Roundup

The best Shopify A/B testing apps, scored on execution and insight depth

Eleven tools scored on two axes: how deep the execution engine runs, and whether the tool tells you what to test or only runs what you hand it. Then we name which fit a solo merchant, an in-house growth team, an agency, or an enterprise data team.

See an example site

The landscape

Ranked on two axes

Two things decide the right pick: how deep the execution engine is, and whether the tool tells you what to test or only runs what you hand it. Both are scored 0–100 against the rubrics below. Hover or tap any dot for the full profile.

Tells you
what to testRuns what
you hand it

Light deliveryDeep execution engine →

Both axes are scored 0–100 against the rubrics published below.

How we scored it

Both axes, scored 0–100

We scored each platform on its audit and experiment capabilities, from each vendor's published behavior. Pick an axis for the method.

Tool							Score
Spar	5	5	5	5	5	2	95
Shoplift	4	2	4	3	3	3	64
Visually.io	4	2	3	3	2	2	56
Mida	3	2	1	2	3	0	42
Intelligems	1	2	3	3	2	0	38
ABConvert (Trident)	1	2	3	3	2	0	38
Omniconvert Explore	1	2	1	0	3	5	34
VWO	1	0	1	0	3	5	26
Optimizely	0	0	0	0	0	2	3
Convert.com	0	0	0	0	0	0	0
GrowthBook	0	0	0	0	0	0	0
Shopify Rollouts	0	0	0	0	0	0	0

Each dimension is scored out of 5; hover a column for its weight and method. Score is the weighted total out of 100.

Start with who runs it

Shortlists by who runs the program

The right app is mostly a function of who runs the program. Choose yours, and we will name the two or three tools that fit, the catch, and where Spar sits for you.

One person, a live store, and no testing budget to commit until something proves out.

1Shopify Rollouts Free, native, zero install. Theme-level only.
2Mida Generous free tier, a tiny script, AI test ideas.
3ABConvert Free plan that already covers price and shipping.

The catch

Free tiers cap on traffic or test type. Start free, and only pay once a test has earned it.

Where Spar fits

Start a 14-day free trial first, so your handful of tests target what is actually losing revenue instead of a guess.

At a glance

How the tools compare

Eight criteria across all eleven tools, including Spar.

Tool	Best for	Test types	Shopify native	Visual editor	Insight / audit	Agency workflow	Starting point
Intelligems	Price & offer testing	Price, shipping, offer, content, theme	Yes	Limited	Limited (strong margin analytics)	Yes	$79/mo Core; price testing at $499/mo (Plus)
Shoplift	Theme & PDP velocity	Theme, template, landing, PDP, content, search	Yes	Yes	Limited (Lift Assist suggestions)	Partial	Around $74/mo
ABConvert (Trident)	All-in-one native	Price, shipping, theme, checkout, offer, URL	Yes	Limited	Limited	Yes	Free plan; paid up to around $199/mo
Visually.io	Testing + personalization	A/B plus personalization, full-funnel	Yes	Yes	Limited (AI iteration)	Partial	Around $15/mo, scaling to around $3,600/mo
Mida	Lightweight, low-cost	Content, landing, theme	Yes	Yes	Limited (AI ideas)	Partial	Free up to around 50k MTU; around $199/mo paid
Omniconvert Explore	Full CRO suite	A/B, price, personalization, surveys, segments	Yes	Yes	Strong (surveys + segmentation)	Yes	Around $245/mo (annual)
VWO	Cross-platform growth/enterprise	A/B, MVT, server-side, behavior analytics	Via implementation	Yes	Strong (heatmaps + recordings)	Yes	Around $314/mo (annual)
Convert.com	Agency cross-platform	A/B, MVT, split URL	Via implementation	Yes	Limited	Yes (unlimited projects)	Around $499/mo; trial only, no free plan
Optimizely	Enterprise experimentation	A/B, MVT, feature, server-side	Via implementation (Plus + ODP)	Yes	Strong	Yes	Custom, around $40k to $150k+/yr
GrowthBook	Open-source / dev-first	Feature-flag plus server/client experiments	Via implementation	No	Limited (warehouse stats)	Partial	Free self-host; per-seat cloud
Shopify Rollouts	Free theme testing	Theme, section, template only	Yes (built-in)	Uses theme editor	None	No	Free (analytics need Advanced+)
SparUs	Audit-to-experiment workflow	Theme, PDP, content, marketing-page (JS variants)	Yes (theme app extension)	Drafts variation code	Strong (rules-library audit + ranked opportunities)	Yes (multi-client workspace)	14-day free trial to start

Pricing reflects each vendor's published posture as of the June 23, 2026 review. It is not a quote. Meters and tiers change often: re-validate against the vendor's own pricing page before you buy.

Where Spar fits

Spar is the audit-to-experiment layer

Spar is an AI growth platform for Shopify brands and agencies. Its edge is finding, prioritizing, and producing higher-quality tests rather than out-executing a dedicated price or theme-testing engine. It can deploy tests itself, or hand off to Convert, GrowthBook, or Intelligems and create Jira items, rather than replace them.

Choose a dedicated runner when

Pure price or shipping elasticity is the lever: Intelligems goes deeper on margin and profit.
Theme and PDP test velocity is the bottleneck: Shoplift ships variations faster.
You need enterprise statistical scale across web, app, and server: Optimizely or VWO.
You want a general cross-platform experimentation platform rather than a Shopify-focused one.

Choose Spar when

Your real question is "what should we test next, and is it worth it?"
You want the storefront audited against a rules library and opportunities ranked by evidence and revenue impact.
You want the hypothesis and the variation code drafted for you to review, edit, and approve before launch.
You run several Shopify clients and need a multi-client workspace with auto-drafted weekly client digests.

Spar runs storefront and marketing-page experiments, staying out of in-app SaaS flows and checkout internals.