Cross-Sell Emails Shopify Apps – Analytics & Insights

Klaviyo: Email Marketing & SMS ranks #1 for cross-sell emails with 19.2% share — the leader position in a fragmented field where many apps are within striking distance, -56.5pp ahead of Shopify Flow (75.7%). Brevo PushOwl: Email,Push,SMS sits at #3 with 2.3% share, rounding out the top tier. Together, the top 3 apps absorb 97.2% of all cross-sell emails installs — a highly concentrated landscape with limited room for new entrants. Mailchimp Email SMS Marketing is the standout mover this month, climbing 7 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.

Cross-Sell Emails is a fragmented market — the top 3 apps together hold only 97.2% of installs, leaving Klaviyo: Email Marketing & SMS's 19.2% lead modest in absolute terms and Brevo PushOwl: Email,Push,SMS at 2.3% still capturing meaningful share. With this many viable apps, pricing model and integration depth differentiate cross-sell emails options more than rank does.

Klaviyo: Email Marketing & SMS climbed from #3 (May 2026) to #1 (Oct 2026) — a 2-position gain among cross-sell emails apps over the charted window. Across the top 5 plotted cross-sell emails apps, 5 improved their ranking while 0 declined — the category is moving upward overall. Klaviyo: Email Marketing & SMS's share expanded +13.2pp from 6.0% (May 2026) to 19.2% (Oct 2026) — a sustained widening of the gap against other cross-sell emails apps over this window.

A 2-position move for the leader over the charted cross-sell emails window is large enough to reflect real merchant adoption shifts, not just App Store noise — Klaviyo: Email Marketing & SMS's climb as of Oct 2026 is the strongest trajectory signal in this chart.

United States dominates demand for cross-sell emails apps with 40.2% of all tracked installs — a single market that effectively defines the category's product priorities. United Kingdom follows at 7.2%, with Australia at 5.4%. Together, the top 3 markets account for 52.8% of cross-sell emails app installs worldwide. Canada (5.0%) and Germany (4.0%) round out the top 5.

With 40.2% of cross-sell emails app installs concentrated in United States, the leading apps in this category typically prioritize United States-based merchants for localization, currency, and support hours — merchants in United Kingdom (7.2%) and other regions sometimes find better fit in apps that over-index outside United States.

Pop Convert ‑ Pop Ups, Banners reached 1,000 reviews in 24 months since launch — the fastest ramp among the top 5 cross-sell emails apps tracked here. Shopify Flow in 51 months, Brevo PushOwl: Email,Push,SMS in 58 months, Omnisend Email Marketing & SMS in 92 months, and Klaviyo: Email Marketing & SMS took 114 months to cross the same milestone, a 90-month spread between the fastest and slowest in the set.

All 5 apps in this set have crossed 1,000 reviews, with current cumulative counts now ranging from 2,276 (Brevo PushOwl: Email,Push,SMS) to 14,381 (Shopify Flow) — a 6.3× difference, showing how far ahead the leader has continued to build past the milestone.

The 90-month gap between Pop Convert ‑ Pop Ups, Banners's and Klaviyo: Email Marketing & SMS's time-to-1,000 highlights how unevenly product-market fit landed across this cross-sell emails 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.