Chargezen CheckoutOS

npx add-mcp 'https://mcp.chargezen.com/mcp/checkoutos'

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.

90-day money-back promise

A slower checkout

Every checkout app adds a fraction of a second to load. Three apps can add a full second.

Numbers that don't add up

Each app takes credit for the same sales. The upsell app says +$12K, the loyalty app says +$8K. The real increase is often half that.

A patchwork look

Customers see your brand, then someone else's upsell box, then a different rewards widget. It looks pieced together, and shoppers notice.

Constant fixes

Shopify updates break checkout apps. With three or four of them, something always needs fixing, and Black Friday is stressful.

Zero conflicts

One app runs your upsells, rewards, checkout add-ons and thank-you page.

Every sale counted once

Every upsell, reward redemption and reorder is credited to what actually made it happen.

Faster checkout

One light app instead of 3 or 4 that compete. Your checkout loads faster.

Serum, 40% offAdd

Order #1042 confirmed

$15 to free shipping

+147 points

Bundle, save 10%

Right for beginners?

Every 30 days

Total$147.00

One app for your whole checkout

• After purchase. One-click upsells after checkout
• Rewards. Points shown at checkout
• Reorders. Reminders when it's time to reorder
• Checkout add-ons. Built into Shopify checkout
• Discounts. Tiered, volume and shipping discounts
• Checkout chat. Answers questions before they buy
• Bundles. Bundles that merge or split in the cart
• Pre-orders. Deposits now, the balance later
• Cart rules. Stop orders you can't ship
• Analytics. One set of numbers

What's different

Every offer, prompt and message knows the same customer. No clashing apps. No doubled-up discounts. Just more sales.

Before CheckoutOS

Shopper's visitOrder #1042

1. Customer adds product to cart
2. Plain checkout page, no offers
3. No loyalty points shown
4. Clicks "Complete Purchase"
5. No offer after purchase
6. Leaves with just 1 item
7. Forgets you in 30 days
8. No reorder reminder

Average order$89

With CheckoutOS

Shopper's visitOrder #1042

1. Customer adds product to cart
2. In-cart: "Add serum for 40% off?"
3. Checkout: "You'll earn 147 points!"
4. Clicks "Complete Purchase"
5. After checkout: "Add recovery pack?" Yes!
6. Leaves with 3 items + points
7. Gets a reminder when it is time to reorder
8. Returns in 28 days to reorder

Average order$147 (+65%)

Offers after purchase

After "Buy now" comes "Add this?" One click to accept, no re-entering payment, and you can test which offers work best.

• 23% average acceptance rate
• $34 more per order on average
• A/B testing built in

Rewards at checkout

Show points when they matter most: right as people buy. Remind customers what they'll earn. Show them how close they are to a reward.

• 38% more customers use rewards
• Drives second purchase
• Works in your store too

Reorder reminders

Don't wait for customers to remember. Chargezen guesses when they'll run out and reminds them at checkout or by message.

• 45% reorder rate
• Timed to when they run out
• By email or text

Checkout chat

A last-second doubt can lose the sale. Answer questions right at checkout, and send serious shoppers to your team or AI, with their cart in view.

• 12% more shoppers buy

• Sees what's in the cart

• AI or a person answers

• Offers after purchase One-click offers after they pay Right after "Pay now" is when shoppers are most likely to add something. Show an offer they can accept with one click, without typing their card again.

  • Pick the product. A product you choose, or the most or least expensive item they just bought.
  • Show it to the right people. Target by what is in the order, order value, customer tags, first-time buyers or country.
  • Build the page. Countdown timers, reviews, trust badges and FAQs, with a percent or dollar discount.

• Checkout blocks

• Rewards at checkout

• Pre-orders

• Discount functions

• Bundles

• Cart rules

Also in CheckoutOS

No extra apps and no extra fees. Every plan includes all of it.

Gift cards and store credit

Branded gift cards, and balances customers can see on their order page.

Thank-you surveys

Ask a question on the thank-you page and see every answer.

Checkout chat

Answer questions in checkout and on the thank-you page.

Cart funnels

Offers and bundles shown in the cart, based on what is in it.

Offer testing

Split buyers between two offers and see revenue per offer.

Offers after purchase

Offers based on what the customer bought, subscribes to, has in points and looked at. Orders are 15-25% bigger on average.

Separate apps: Upsell app can't see loyalty points or subscription status. Every recommendation is a generic guess.

Rewards at checkout

Points, rewards and referral credit shown at checkout, when they matter most. Customers use rewards 3 to 4 times as often.

Separate apps: Rewards live in a separate app that 70% fewer people use than rewards shown at checkout.

Bundles and checkout add-ons

One app runs upsells, bundles, checkout add-ons and the thank-you page, so nothing clashes.

Separate apps: The bundle app clashes with the upsell app, and checkout add-ons fight for space.

Reorders and subscriptions

AI times reorder reminders from past orders, and offers one-time buyers a subscription at checkout.

Separate apps: Reorder reminders need a separate tool that can't show anything at checkout.

Most Shopify Plus brands spend $500-$1,200/month across 3 or 4 checkout apps. CheckoutOS replaces them from a $99/month entry plan with no revenue share.

Pricing

$99 a month. No cut of your sales.

Everything for your checkout at one monthly price, with no setup fee and no cut of your sales.

$99

per month

No setup fee. No revenue share.

No "per transaction" fees. No "revenue share" tiers. No surprise invoices.

Setup includes

• We install the whole thing
• Offers after purchase, set up for you
• Loyalty points checkout integration
• Reorder reminders set up
• Checkout add-ons turned on
• Discount rules set up
• Pre-orders set up
• Offer testing set up
• 30 days of priority support

Plan includes

• Unlimited orders
• Unlimited upsells
• Pre-orders included
• All features
• All updates
• Email support
• Community access

Why we price it this way

Selling more at checkout shouldn't cost you more. Every upsell, reward point and reorder reminder is supposed to make you money, not cost you more in software fees. You pay the same as your sales grow.

15-25%

Bigger orders, on average

7-14 days

To pay for itself

50x+

Return in the first year

Work out your return

Sports Nutrition · Payback: 6 days

High-Volume Nutraceuticals

Bigger orders

+31%

Took the offer

27%

New Revenue (90 days)

$47K

Saved on apps

$24K/yr

“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 High-Volume Nutraceuticals

Premium Beauty · Payback: 11 days

A Leading D2C Skincare Unicorn

Bigger orders

+24%

Use rewards

+52%

Reorders

+38%

First-year return

67x

“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 A Leading D2C Skincare Unicorn

Health & Fitness · Payback: 9 days

High-Volume Nutraceuticals

Bigger orders

+19%

Became subscribers

+41%

Left at checkout

-12%

Support emails

-23%

“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 Concierge just... closed them. At 2 AM. While I was asleep.”

Founder & CEO High-Volume Nutraceuticals

Supplements · Payback: 8 days

High-Volume Nutraceuticals

Bigger orders

+28%

Added a bundle

34%

Hit free shipping

+67%

Breaks in 3 Shopify updates

0

“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 High-Volume Nutraceuticals

Brands with big orders

When every order matters, make it bigger. Offers after purchase can add 15-25% to the average order.

Subscription brands

Offer one-time buyers a subscription at checkout, and remind them when it's time to reorder.

Brands with too many apps

Replace 3-5 checkout tools with one suite. One dashboard, one integration, one price.

Shopify Plus brands

Customize Shopify checkout without hiring a developer. Big-brand features at a small-business price.

Growing brands

Grow without giving up a cut of your sales. One flat price, however big you get.

Guarantee

Our 90-day promise

Here's the math: CheckoutOS is $99 a month. The average order grows by $34. At 100 orders a month, a few accepted offers cover the cost. 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.

FAQ

How much does CheckoutOS cost?

$99 a month, with no setup fee and no revenue share. No "per transaction" fees and no surprise invoices. You pay the same as your sales grow.

What does CheckoutOS replace?

Separate apps for upsells, rewards at checkout, pre-orders, bundles, discounts, checkout add-ons, cart rules and checkout chat. One app runs them all, with one set of numbers.

Are pre-orders included?

Yes. Every CheckoutOS plan includes pre-orders at no extra cost. Take a deposit or the full price at checkout, charge the balance on a date you set, and let failed charges retry on their own.

Will Shopify updates break my checkout?

CheckoutOS uses Shopify's official checkout tools, so updates don't break it.

What does setup include?

We install the whole thing: offers after purchase, loyalty points at checkout, reorder reminders, checkout add-ons, discount rules, pre-orders and offer testing, plus 30 days of priority support.

What if it doesn't work for my store?

Our 90-day promise: we'll get on a call, audit your setup, rebuild your offer strategy and keep working until the numbers work. Still not seeing results? $500 service credit, no questions asked.