UpsellPlus specializes in checkout and post-purchase upsells, with a particular focus on Shopify Plus checkout customization. Kairo covers the full post-checkout experience across four page types. Let's compare them for 2026.
Feature Comparison
| Feature | Kairo | UpsellPlus |
|---|---|---|
| Post-purchase upsells | ||
| Checkout upsells | Plus only | Plus only |
| Visual editor | 26 block types | Template-based |
| Flow builder | 10 condition types | Basic |
| A/B testing | Flows & offers | |
| Thank you page | ||
| Order status page | ||
| Customer surveys | ||
| Quantity breaks | ||
| Subscription upsells | ||
| Works on all Shopify plans | Limited without Plus | |
| Starting price | $8/mo | $49/mo |
Shopify Plan Requirements
This is a critical difference. UpsellPlus is designed primarily for Shopify Plus stores. While it works on other plans, its core value proposition — checkout page upsells — requires Plus ($2,300+/month).
Kairo's post-purchase upsells, flow builder, A/B testing, thank-you page, order status page, surveys, and full visual editor all work on any Shopify plan. Only the checkout page customization feature requires Plus.
For stores not on Shopify Plus, Kairo offers dramatically more functionality at a fraction of the cost.
Pricing
UpsellPlus starts at $49/month with a $500 revenue cap. Higher tiers are $119/mo and $199/mo (both Shopify Plus only). No commission fee, and they offer a 14-day free trial.
Kairo starts at $8/month with usage-based tiers. All features included at every level.
At comparable upsell revenue levels, Kairo costs significantly less while providing more features (4 page types, surveys, unique conversion blocks).
The Verdict
UpsellPlus is a solid choice for Shopify Plus stores that want deep checkout customization. If you're on Plus and checkout upsells are your primary focus, it's worth evaluating.
For everyone else — and even many Plus stores — Kairo is the better value. More page types, more editor flexibility, more unique conversion features, and lower cost. Post-purchase upsells (which work on all plans) also convert at higher rates than checkout upsells.
Compare all options in our complete app comparison.
Ready to boost your revenue?
Try Kairo free for 14 days. Usage-based pricing starts at just $8/month — and scales with your upsell revenue.
Start Free Trial