You paid for the traffic, the product page did its job, and the shopper clicked “Checkout.” Then they left. It happens to roughly seven in ten carts, and for most stores the checkout is the single cheapest place to win back revenue, because those shoppers already wanted to buy.

Checkout optimization software fixes the friction that causes those exits: forms that are too long, surprise costs, missing trust signals, and no second chance once someone leaves. The right tool also adds revenue at the moment of purchase through order bumps, upsells and recovery emails. The wrong one adds another plugin to maintain.

Below, we compare five well-known options for WooCommerce and Shopify stores, show what each one costs according to its official pricing page, and explain who each one suits. If you are still choosing how to take payments, start with our guide to the best payment gateways for ecommerce.

Editorial note: this article contains no affiliate links. Prices and features were checked against each vendor’s official pages on October 17, 2026, and we have not hands-on tested these tools. Vendors change plans often, so confirm current pricing before you buy.

Why Shoppers Abandon Checkout (and What That Tells You to Fix)

Baymard Institute, which combines 50 studies of online carts, puts the average documented cart abandonment rate at 70.22%. Its checkout research also shows why people leave. The reasons below are mostly fixable with software, and several have nothing to do with your product.

Two takeaways. First, the biggest cause is cost surprise, so show shipping and taxes early. Second, length and account creation are pure friction. Baymard found the average US checkout shows 23.48 form elements by default, while an ideal one can get by with 12 to 14. Software that trims fields, offers guest checkout and adds trust signals attacks exactly these leaks.

Not sure where your own shoppers drop off? Measure first with a heatmap tool or ecommerce analytics software, then pick the tool below that matches the problem.

1. FunnelKit — Best for WooCommerce Checkout Funnels

Best for: WooCommerce stores that want a custom checkout, order bumps, upsells and cart recovery from one plugin family.

What FunnelKit does well

• Plans from Plus up include a funnel builder with unlimited funnels, multiple conditional order bumps and unlimited one-click upsells.
• Abandoned cart recovery is included on every plan, including the entry-level Basic plan.
• Higher tiers add email and SMS automations and a combined contact view.

Potential drawbacks

• The Basic plan has no funnel builder, order bumps or upsells, so most stores will need Plus or higher.
• Listed prices are introductory and apply to the first term only; renewals are at the regular price.
• WooCommerce only.

Pricing

Per year, introductory price (regular price): Basic $99.50 ($129) for 1 site; Plus $149.50 ($299) for 2 sites; Professional $199.50 ($399) for 3 sites; Elite $299.50 ($599) for 30 sites. Source: FunnelKit pricing page, checked October 17, 2026.

Check FunnelKit Pricing →

2. CartFlows — Best for WooCommerce With a Lifetime Option

Best for: WooCommerce owners who would rather pay once than renew a subscription every year.

What CartFlows does well

• Starter gives you instant checkout layouts, modern checkout styles and custom thank-you pages.
• Pro adds order bumps, one-click upsells and downsells, smart funnel routing, A/B split testing and funnel analytics.
• The Suite bundle adds Cart Abandonment Recovery Pro, Modern Cart Pro and Power Coupons Pro.

Potential drawbacks

• Cart abandonment recovery is part of the higher Suite bundle rather than Starter or Pro.
• Annual plans renew at a higher price than the first year.
• The official pricing page shows two different sets of tier names and prices, so confirm what you are buying at checkout.

Pricing

Starter: $99/year (renews at $149) for 1 site, or $99 one-time. Pro: $199/year (renews at $299) for 3 sites, or $699 one-time. Suite: $299/year (renews at $449) for 30 sites, or $999 one-time. Source: CartFlows pricing page, checked October 17, 2026.

Compare CartFlows Plans →

3. ReConvert — Best Free Start for Shopify Upsells

Best for: Shopify stores that want thank-you page and post-purchase upsells without a monthly bill at the start.

What ReConvert does well

• The free Growth plan covers up to 2,000 monthly orders and includes upsells on every page, conditional targeting, all widget types and built-in A/B testing.
• Live chat support and an AI setup assistant are included in the free plan.
• Checkout upsells are available on the Elite plan for Shopify Plus stores.

Potential drawbacks

• The jump from free to the Scale plan is steep, so growing stores should plan for it.
• Plan limits apply to whichever is higher, your monthly orders or your upsell revenue.
• Checkout-page upsells require Shopify Plus.

Pricing

Growth: free, up to 2,000 monthly orders. Scale: $299/month, up to 10,000 orders. Elite: $899/month, up to 20,000 orders. Enterprise: custom. The pricing page is inconsistent about monthly versus annual billing for the paid tiers, so confirm before subscribing. Source: ReConvert (upsell.com) pricing page, checked October 17, 2026.

See ReConvert Plans →

4. Rebuy — Best for Personalized Offers on Shopify

Best for: Shopify stores with a larger catalog that want AI-driven product recommendations in the cart and after purchase.

What Rebuy does well

• Smart Cart is a customizable slide-out cart with AI product recommendations.
• Merchandising widgets, dynamic bundles and a bundle builder support upsells and cross-sells.
• Post-purchase offers run after the order, and a free Monetize option shows curated offers on the thank-you page.

Potential drawbacks

• Checkout Extensions are a Shopify Plus feature.
• Packages are priced by your monthly Shopify orders, and some per-package prices on the public page were placeholders, so you may need a sales conversation to get an exact quote.
• Premium support is a paid add-on.

Pricing

Build-your-own packages start at $25/month for one package, priced by order volume, with bundle discounts of 10% for two packages, 20% for three and 30% for all four. Platform One is listed at $534/month billed monthly. A 14-day free trial is offered. Source: Rebuy pricing page, checked October 17, 2026.

Explore Rebuy Pricing →

5. Klaviyo — Best for Abandoned Cart Recovery Emails

Best for: Any store that wants to win shoppers back after they leave, on Shopify, WooCommerce or other platforms.

What Klaviyo does well

• Abandoned cart flows email (and text) shoppers who left items behind.
• Klaviyo’s own 2026 benchmark report, covering more than 110,000 customers, puts average abandoned cart revenue per recipient at $6.77 and the top 10% of brands at $13.70.
• Average click rate on abandoned cart messages is 6.0%, and 11.3% for the top 10%.

Potential drawbacks

• It recovers carts after the exit; it does not change the checkout itself, so pair it with one of the tools above.
• Cost scales with your contact count and text usage.
• Benchmark figures come from Klaviyo’s own customers, so treat them as a reference point rather than a promise.

Pricing

Klaviyo advertises that pricing starts free and then scales with email sends and text credits. We could not confirm exact paid-tier prices from the official page, so check klaviyo.com/pricing for your contact count.

See Klaviyo Pricing →

Checkout Optimization Software Compared Side by Side

Which Checkout Optimization Tool Is Right for You?

Use this decision path to narrow it down in about a minute.

What to Look for in Checkout Optimization Software

• Platform fit. A WooCommerce plugin will not run on Shopify, and Shopify checkout changes are often limited to Shopify Plus.
• Speed. Heavy scripts slow the page you are trying to improve. Test load time before and after installing.
• Testing and analytics. Built-in A/B testing lets you prove a change helped instead of guessing.
• Payment and trust support. Make sure the tool works with your payment gateway and shows security cues clearly.
• Total cost. Include renewal prices, order-based tiers and add-ons, not just the first-year price.

Quick Wins You Can Make Before Buying Anything

1. Show total cost early. Extra costs are the top reason shoppers leave, so show shipping and tax estimates in the cart.
2. Offer guest checkout. 18% of shoppers in Baymard’s data left because an account was required.
3. Cut form fields. Remove anything you do not need to ship the order.
4. Offer accelerated payment options. On Shopify, Shop Pay is free with Shopify Payments, and Shopify says it can convert up to 50% better than guest checkout. That is Shopify’s own best-case claim based on a 2023 study, so treat it as a ceiling, not a forecast.
5. Consider flexible payment options for higher-priced carts. See our guide to buy now pay later platforms.

Frequently Asked Questions

What is checkout optimization software?

It is software that improves the checkout stage of an online store, usually by simplifying the form, adding order bumps and upsells, testing layouts and recovering abandoned carts, so more shoppers complete their purchase.

What is the best checkout optimization software?

It depends on your platform. FunnelKit and CartFlows are the main options for WooCommerce, ReConvert and Rebuy for Shopify, and Klaviyo works alongside any of them for abandoned cart emails.

How do I reduce cart abandonment?

Show total costs early, offer guest checkout, shorten the form, add trust signals and send abandoned cart emails. Baymard reports an average abandonment rate of 70.22%, so some abandonment is normal.

What is a good cart abandonment rate?

There is no single target. Baymard’s average across 50 studies is 70.22%. Compare your own rate over time rather than chasing one number.

Do abandoned cart emails work?

Klaviyo reports average abandoned cart revenue per recipient of $6.77 across its 2026 benchmark, with the top 10% of brands at $13.70. Results vary by store and audience.

Is CartFlows or FunnelKit better?

Both build WooCommerce checkout funnels. On published plans, FunnelKit includes cart abandonment recovery on every tier, while CartFlows includes it in its higher Suite bundle but offers lifetime licensing. Compare the exact features you need.

Can I improve checkout on Shopify?

Yes, but deep checkout customization is mostly limited to Shopify Plus. On other plans, you can still improve the cart, thank-you page, post-purchase offers and recovery emails with apps like ReConvert, Rebuy and Klaviyo.

Is checkout optimization the same as conversion rate optimization?

Checkout optimization is one part of conversion rate optimization (CRO), focused on the final steps before payment. See our roundup of the best CRO tools for the wider picture.

How much does checkout optimization software cost?

From free to several hundred dollars a month. Among the tools above, entry points range from free (ReConvert, Klaviyo) to about $100 per year (FunnelKit, CartFlows) and $25 per month (Rebuy), with higher tiers for larger stores.

Do I need a developer to set this up?

Most of these tools are built for merchants to configure themselves. If you want a faster, cleaner store to begin with, our WordPress development service can help.

Final Verdict: Which Checkout Optimization Software Should You Choose?

If you run WooCommerce, start with FunnelKit for the broadest feature set on its published plans, or CartFlows if a one-time license matters more. If you run Shopify, begin with ReConvert’s free plan and look at Rebuy once your catalog and order volume justify it. Whichever you choose, add Klaviyo abandoned cart emails so shoppers who leave still have a path back.

Your next step: pick one change from the quick wins list, install one tool, and compare checkout completion after 30 days. Small, measured changes beat a big redesign you cannot evaluate.

Sources

• Baymard Institute: Cart abandonment rate statistics
• FunnelKit pricing
• CartFlows pricing
• ReConvert pricing
• Rebuy pricing
• Klaviyo abandoned cart benchmarks
• Shopify: Shop Pay

About the author

Jaykishan Panchal

Founder, TechCognate · SEO Strategist & WordPress Expert

Jaykishan Panchal is the founder of TechCognate and an SEO strategist with 15+ years of hands-on experience driving organic growth for businesses worldwide. He specialises in technical SEO, content strategy and GEO (Generative Engine Optimisation), helping brands stay visible in both traditional search and AI-driven discovery.

• Technical SEO
• Content Strategy
• AI & GEO
• Google Ads
• E-Commerce SEO

LinkedInX / @TechCognateAll articles