Thank You Page Upsell Shopify Apps – Analytics & Insights

Checkout Plus ranks #1 for thank you page upsell with 8.8% share — the leader position in a fragmented field where many apps are within striking distance, 6.9pp ahead of Brew: Thank You Page Upsell (1.9%). Upsell & Cross Sell — Selleasy sits at #3 with 63.6% share, rounding out the top tier. Together, the top 3 apps absorb 74.4% of all thank you page upsell installs — a highly concentrated landscape with limited room for new entrants. Oak Checkout Upsell | Grow AOV is the standout mover this month, climbing 54 positions — a momentum signal worth tracking. Worth noting: the top-ranked app and the highest-share app aren't the same here — App Store rank and our market share metric (computed from review counts and other factors) move on independent dynamics, so cross-checking both views matters in this category.

Thank You Page Upsell is a fragmented market — the top 3 apps together hold only 74.4% of installs, leaving Checkout Plus's 8.8% lead modest in absolute terms and Upsell & Cross Sell — Selleasy at 63.6% still capturing meaningful share. With this many viable apps, pricing model and integration depth differentiate thank you page upsell options more than rank does.

Checkout Plus climbed from #2 (May 2026) to #1 (Sep 2026) — a 1-position gain among thank you page upsell apps over the charted window. Across the top 5 plotted thank you page upsell apps, 4 improved their ranking while 0 declined — the category is moving upward overall. Checkout Plus's share expanded +5.0pp from 3.8% (May 2026) to 8.8% (Sep 2026) — a sustained widening of the gap against other thank you page upsell apps over this window.

4 of 5 plotted thank you page upsell apps moved positions in this window — recent trajectory beats current rank as a signal when a category is reshuffling this actively.

United States leads geographic demand for thank you page upsell apps at 29.7%, but the install base is meaningfully spread across multiple top markets. United Kingdom follows at 10.6%, with Australia at 7.2%. Together, the top 3 markets account for 47.5% of thank you page upsell app installs worldwide. Germany (4.4%) and Netherlands (4.3%) round out the top 5. United Kingdom is the fastest-growing market this month (+1.4pp), pointing to accelerating demand outside the established leaders.

thank you page upsell app demand is split between United States (29.7%), United Kingdom (10.6%), and Australia (7.2%) — the leaders in moderately distributed categories like this usually invest in multi-currency, multi-language support, making them workable for cross-border thank you page upsell merchants.

Upsell & Cross Sell — Selleasy reached 1,000 reviews in 32 months since launch — the fastest ramp among the top 5 thank you page upsell apps tracked here. Aftersell Post Purchase Upsell crossed the same milestone in 73 months, 41 months behind.

3 apps on this chart haven't yet crossed 1,000 reviews: Checkout Plus at 95, Brew: Thank You Page Upsell at 15, Oak Checkout Upsell | Grow AOV at 8 cumulative reviews. Checkout Plus is closest to the milestone — its current count puts it roughly 10% of the way to 1,000.

The 41-month gap between Upsell & Cross Sell — Selleasy's and Aftersell Post Purchase Upsell's time-to-1,000 highlights how unevenly product-market fit landed across this thank you page upsell set — the leader found its merchant audience early, while late-rampers took multiple years to reach the same review depth. For merchants comparing these apps today, slower-ramping apps may have closed the functionality gap but still operate on smaller review bases.