Best Shopify Post-Purchase Upsell Apps (2026 Comparison)

Post-purchase upsell apps show an offer after payment, before the thank-you page. For DTC consumables, this is often the highest-intent moment in the funnel — the customer already trusts you enough to pay.

When evaluating apps, compare three things: which checkout surfaces are included (post-purchase only vs cart/checkout), pricing (flat monthly vs % of upsell revenue), and how fast you can launch a first funnel.

What matters for supplement & beauty brands

• Templates for refills, travel sizes, and bundles — not generic one-size funnels
• Flat pricing at scale — 5% of growing upsell GMV adds up vs $29–49/mo
• Multi-surface upsells (cart, checkout, post-purchase) if you outgrow a single offer
• Shopify-native billing — merchants approve charges in admin, no external invoices

RefillPost positioning

RefillPost is built for consumables: Starter is $0/mo with 5% only on upsell revenue you earn (post-purchase). Growth ($29/mo) removes the % for stores doing meaningful upsell volume. Pro ($49/mo) adds cart, checkout, thank-you, and up to five funnels.

If you are testing post-purchase for the first time, start with one funnel and measure revenue per impression before expanding surfaces.

How to choose

• Under ~$500/mo upsell GMV: usage-based Starter often wins on cost
• $500–2k/mo upsell GMV: compare Starter fees vs Growth flat $29
• Multi-market DTC with serious AOV goals: Pro for cart + post-purchase mix