Your Customers Want to Spend More.
Your Checkout Won't Let Them.
Right now, someone's at your checkout with $347 in their cart, wondering if there's a better deal.
In 8 seconds, they'll check your competitor. Unless they see the offer first.
Order Summary
3 items • $147.00
Premium Wellness Bundle
Qty: 1 • $127.00
EXCLUSIVE OFFER
Add Recovery Serum for 40% off
$45 $27
You'll earn 147 points on this order!
Only 53 more to unlock $10 reward
Order Total
$174.00
Your checkout extensions are
fighting each other.
Every app you install at checkout adds latency, creates script conflicts, and fragments your analytics. The real cost isn't the monthly bills. It's the conversions you're losing to a slow, disjointed checkout experience.
The Performance Tax
Every checkout extension adds 200-400ms of load time. Three apps means over a second of delay. Studies show each 100ms costs 1% in conversions.
The Attribution Gap
Each checkout app reports its own numbers. The upsell app claims +$12K, the loyalty app claims +$8K. Your actual revenue increase? Often half of what's reported.
The Experience Gap
Customers see your brand, then a third-party upsell UI, then a different loyalty widget. Each handoff erodes trust and brand consistency.
The Maintenance Tax
Shopify checkout updates break extension compatibility. Managing 3-4 checkout apps means constant QA, version conflicts, and BFCM anxiety.
What if your checkout ran on one unified system?
One script. One data layer. One conversion funnel with perfect attribution.
Zero conflicts
One orchestration layer manages upsells, loyalty, extensions, and the thank-you page.
Clean attribution
Every post-purchase sale, loyalty redemption, and replenishment order tracked to its source.
Faster checkout
One lightweight script instead of 3-4 competing extensions. Measurably faster load times.
This is CheckoutOS.
One system that knows what every other part is doing. Every offer. Every discount. Every point. Orchestrated.
Most Shopify Plus brands spend $500-$1,200/month across 3-4 checkout extensions. CheckoutOS replaces them from a $99/month entry plan with no revenue share.
Meet CheckoutOS: Every Transaction, Maximized
One suite for upsells, rewards, replenishment, extensions, and chat. Unified data. Clean attribution.
Post-Purchase
One-click upsells after checkout
Rewards
Points at checkout moment
Replenishment
Smart reorder timing
Extensions
Native Shopify checkout
Discounts
Advanced promo logic
Checkout Chat
Last-mile conversion help
Bundles
Dynamic product bundling
Analytics
Unified attribution
The Difference?
Every offer, every prompt, every interaction shares the same customer context. No conflicts. No duplicate discounts. Just intelligent, orchestrated revenue optimization.
The Checkout Experience Transformed
❌ Before CheckoutOS
📉 Average Order: $89
✅ With CheckoutOS
📈 Average Order: $147 (+65%)
Post-Purchase Upsells
After "Buy Now" comes "Add This?" One-click acceptance. No re-entering payment. Clean attribution. Test and iterate.
- 23% average acceptance rate
- $34 average AOV lift
- A/B testing built in
Loyalty at Checkout
When points matter most—at the moment of purchase. Remind customers what they'll earn. Show them how close they are to a reward.
- 38% engagement lift
- Drives second purchase
- POS-compatible
Smart Replenishment
Don't wait for customers to remember. Predict reorder windows. Present offers at checkout or follow up automatically based on usage patterns.
- 45% reorder rate
- Predictive timing
- Multi-channel delivery
Checkout Chat
Last-mile doubt kills conversions. Answer questions at the moment they matter. Route high-intent shoppers to your team or Zen AI—with full cart context.
- 12% conversion lift
- Full cart context
- AI or human routing
Feature Deep Dives
Everything you need to maximize checkout revenue--in one unified suite.
Post-Purchase Upsells
The moment after "Buy Now" is your highest-intent opportunity. Present a perfectly matched offer with one-click acceptance--no re-entering payment info.
One-Click Add
Customer accepts offer without re-entering payment. Zero friction. Maximum conversion.
Smart Product Matching
AI recommends the perfect add-on based on cart contents, purchase history, and margin targets.
A/B Testing Built In
Test different offers, pricing, copy, and placements. Know exactly what works.
Clean Attribution
Every post-purchase sale is tracked to its source. No more guessing.
Order #CZ-48291 • $127.00
Recovery Serum
Perfect complement to your order
No need to re-enter payment
Loyalty at Checkout
Your loyalty program shouldn't live in a separate app customers never visit. Show points at the moment of purchase--when motivation is highest.
Real-Time Points Display
"You'll earn 147 points on this order!" right at checkout. Instant gratification.
Progress to Reward
"Only 53 more points to unlock $10 off!" Creates urgency without being pushy.
Redemption at Checkout
Let customers apply rewards right there. No hunting for codes.
First-Purchase Bonus
Extra points for first order. Hooks them into the program from day one.
You'll earn 135 points!
65 more to unlock $10 reward
Smart Replenishment
Don't wait for customers to remember to reorder. Predict when they'll run out and present the offer at the perfect moment.
AI Reorder Prediction
Machine learning models predict individual reorder windows based on purchase patterns.
At-Checkout Offers
For replenishable products: "Set up auto-reorder?" with one click.
Post-Purchase Follow-Up
Automated reminders via email, SMS, or widget when it's time to restock.
Subscription Conversion
Convert one-time buyers to subscribers with perfectly timed prompts.
Premium Wellness Bundle
Last ordered: Dec 1, 2025
Running low in ~5 days
Based on your 28-day usage pattern
Native Checkout Extensions
No more fragile scripts that break with every Shopify update. Native checkout extensions that match your brand and work seamlessly.
Checkout UI Extensions
Built on Shopify's official extensibility framework. Future-proof.
Free Shipping Progress
"Add $15 more for free shipping!" right in checkout. Proven AOV booster.
Trust Badges & Social Proof
Security badges, reviews, and social proof where they matter most.
Custom Fields & Logic
Gift messages, delivery instructions, and custom checkout flows.
Add $15 more for FREE SHIPPING
Why a Unified Checkout Suite Wins
Point solutions at checkout create conflicts. A unified suite creates compounding conversions.
Post-Purchase Upsells
Upsell app can't see loyalty points or subscription status. Every recommendation is a generic guess.
Upsells informed by purchase history, subscription data, loyalty status, and browsing behavior. Average 15-25% AOV increase.
Loyalty at Checkout
Loyalty widget lives in a separate app. 70% lower engagement vs. checkout-embedded rewards.
Points, rewards, and referral credits shown at checkout when they matter most. Redemption rates 3-4x higher.
Smart Bundles & Extensions
Bundle builder conflicts with upsell app. Checkout extensions compete for screen space.
One orchestration layer manages upsells, bundles, extensions, and thank-you page -- zero conflicts.
ReplenishMe & Subscriptions
Replenishment reminders require a separate tool with no checkout integration.
AI-powered replenishment timing based on purchase history. Convert one-time buyers to subscribers at checkout.
$500-$1,200/mo
Industry average for 3-4 checkout tools
$99/mo
CheckoutOS, no revenue share
$99/month. No Revenue Share.
The complete checkout optimization suite with predictable monthly pricing, no setup fee, and no revenue share.
/month
Setup Includes
- Full checkout suite installation
- Post-purchase upsell configuration
- Loyalty points checkout integration
- Replenishment logic setup
- Checkout extensions deployment
- Discount functions configuration
- A/B testing framework setup
- 30 days of priority support
Plan Includes
- Unlimited orders
- Unlimited upsells
- All features
- All updates
- Email support
- Community access
No "per transaction" fees. No "revenue share" tiers. No surprise invoices.
Why We Did This
Checkout optimization shouldn't be a tax on growth. Every upsell, every loyalty point, every replenishment reminder--they're supposed to make you money, not cost you more in software fees. Predictable pricing keeps the software line readable as checkout revenue grows.
Calculate Your Payback Period
Most brands cover the first month of CheckoutOS with their first week of post-purchase upsells.
15-25%
Average AOV Lift
7-14 days
Average Payback
50x+
Year 1 ROI
Brands That Maximized Their Checkout
High-Volume Nutraceuticals
Sports NutritionPayback: 6 days
+31%
AOV Increase
27%
Post-Purchase Accept
$47K
New Revenue (90 days)
$24K/yr
Tool Cost Savings
"First week, CheckoutOS paid for itself. I'm not exaggerating. One week. The post-purchase creatine upsell alone did $2,100. I kept refreshing the dashboard thinking it was broken."
VP of E-Commerce
VP of E-Commerce
A Leading D2C Skincare Unicorn
Premium BeautyPayback: 11 days
+24%
AOV Increase
+52%
Loyalty Engagement
+38%
Replenishment Orders
67x
Year 1 ROI
"We had a separate loyalty app. Nobody used it. Like, literally 8% engagement. Then we turned on loyalty-at-checkout and suddenly people are texting their friends 'did you know they have points?' It's wild."
Head of Growth
Head of Growth
High-Volume Nutraceuticals
Health & FitnessPayback: 9 days
+19%
AOV Increase
+41%
Subscription Conversion
-12%
Checkout Abandonment
-23%
Support Tickets
"Okay, the checkout chat thing? Didn't think we needed it. But then I saw the transcripts--people asking 'is this the right one for beginners?' at 2 AM. And Zen AI just... closed them. At 2 AM. While I was asleep."
Founder & CEO
Founder & CEO
High-Volume Nutraceuticals
SupplementsPayback: 8 days
+28%
AOV Increase
34%
Bundle Attach Rate
+67%
Free Shipping Threshold
100%
Breakage Eliminated
"I used to have my dev guy on retainer just for checkout fires. $1,800/month. Last three Shopify updates? Nothing broke. Nothing. I almost called to check if checkout was still working."
Director of Operations
Director of Operations
Built for Every Checkout Challenge
High-AOV Brands
When every order matters, maximize it. Post-purchase upsells can add 15-25% to average order value.
Subscription Brands
Convert one-time buyers to subscribers at checkout. Replenishment timing drives recurring revenue.
Tool Consolidators
Replace 3-5 checkout tools with one suite. One dashboard, one integration, one price.
Shopify Plus Brands
Native checkout extensibility without custom dev. Enterprise features at SMB prices.
Growth-Stage DTC
Scale without revenue share. Predictable pricing means your unit economics stay readable.
The 90-Day ROI Guarantee
Here's the math: CheckoutOS is $99/month. Average AOV lift is $34. At 100 orders/month, one accepted upsell can cover the month. Most brands hit payback in week one. But let's say you're different. Let's say 90 days pass and you're not at 10x.
We'll get on a call, audit your setup, rebuild your offer strategy, and keep working until the numbers work. We've done this 200+ times. We know what converts.
Still not seeing results? $500 service credit, no questions asked. But in our experience, that's never happened.
Your checkout should compound revenue, not complexity.
Go live in under a week. One script. One data layer. One conversion funnel with perfect attribution.
$99/month. No revenue share.
