Post-purchase funnels,
without per-order fees.
CartHook builds post-purchase and thank-you page upsell funnels, priced by orders. CheckoutOS includes those offers plus checkout blocks, bundles, rewards at checkout and checkout chat for $99 a month.$99/month. No per-order fees.
Self-serve software or help with setup and migration.
Side by side
See exactly what you get with each one.
Who each one is best for. Choose CartHook if you run high volume or Shopify Plus and want a dedicated post-purchase funnel builder with accept and decline paths. Choose CheckoutOS if you want checkout offers, post-purchase upsells, bundles, checkout blocks and cart rules from one app for $99 a month, with no per-order fees.
Checked October 16, 2026. CartHook facts come from the CartHook App Store listing. “Not listed” means those pages didn’t name the feature when we checked, not that CartHook can’t do it.
| Feature | CartHook | Chargezen |
|---|---|---|
| Post-purchase upsells One-click offers after checkout | Included | Included |
| Thank you page offers Offers on the confirmation page | Included | Included |
| Checkout upsells Offers inside Shopify checkout | Shopify Plus | Included |
| A/B testing Test different offers | Included | Included |
| Offer a subscription Subscribe and save offers | With Recharge or Seal | With Chargezen Subscriptions |
| Bundles and cart rules Merge or split bundles before the order is placed | Through bundle apps | Included |
| Rewards at checkout Show points as customers buy | Not listed | Included |
| Checkout chat Answer questions during checkout | Not listed | Included |
| Per-order fees Charges on each order | On Pay as you go and Growth | None |
CartHook
- Post-purchase upsells
- Included
- Thank you page offers
- Included
- Checkout upsells
- Shopify Plus
- A/B testing
- Included
- Offer a subscription
- With Recharge or Seal
- Bundles and cart rules
- Through bundle apps
- Rewards at checkout
- Not listed
- Checkout chat
- Not listed
- Per-order fees
- On Pay as you go and Growth
Chargezen
- Post-purchase upsells
- Included
- Thank you page offers
- Included
- Checkout upsells
- Included
- A/B testing
- Included
- Offer a subscription
- With Chargezen Subscriptions
- Bundles and cart rules
- Included
- Rewards at checkout
- Included
- Checkout chat
- Included
- Per-order fees
- None
What you’d really pay
CartHook charges by order on its smaller plans. CheckoutOS is one monthly price.
CartHook
- Pay as you go
- 20 orders free, then $0.12/order + 1% of upsell revenue
- Growth
- $49/mo, 1,000 orders, then $0.14/order
- Scale
- $149/mo
- Checkout upsells
- Shopify Plus
Estimated Annual Cost
From $588/year
Growth for 12 months before per-order charges (capped at $1,200). The Scale plan’s text lists both unlimited orders and a per-order charge above 3,000, so confirm it with CartHook. CartHook App Store listing, checked October 16, 2026.
Chargezen
- CheckoutOS
- $99/mo
- Per-order fee
- $0
- Share of upsell revenue
- $0
- Order limits
- None
Annual Cost
$1,188/year
CheckoutOS is $99/month, billed monthly, with no per-order fees. Pre-orders are included. Taxes are extra. Chargezen pricing.
Plan your move from CartHook
Check your data, billing dates and launch plan before you switch.
Talk through your move- 01
List your offers
Write down the CartHook offers, bundles and rules that perform best today.
- 02
Rebuild them in CheckoutOS
Create the same offers in the cart, checkout, post-purchase and thank-you page.
- 03
Test side by side
Use A/B tests to compare results before you switch everything over.
- 04
Turn off CartHook
Remove the old offers so customers only see one set.
Why brands switch to Chargezen
Unified Platform
Run AI agents, texts and email, upsells, creators and subscriptions from one place.
AI-Powered
AI agents answer customers, follow up and handle everyday busywork for your team.
Clear Pricing
See prices and usage costs, billed monthly or yearly.
Ready to switch from CartHook?
See the products, prices and setup help that fit your brand.
Common questions
CartHook’s Pay as you go plan is free for 20 orders, then $0.12 per order plus 1% of upsell revenue; Growth is $49/month for 1,000 orders, then $0.14 per order; Scale is $149/month (checked October 16, 2026). CheckoutOS is $99/month with no per-order fees.
