Klaviyo Shopify Apps – Market Share Breakdown
(Updated September 2026) See which klaviyo Shopify apps dominate installs and how their share has shifted over time. This keyword page shows the full market share table, monthly share trends for the leaders, and a country-level breakdown so you can compare global vs regional dominance.
Klaviyo Shopify Apps — Full Market Share Table
All tracked klaviyo Shopify apps ranked by current install share, with change vs 30 days ago and Leader / Climbing / Declining / Stable status — filterable by country and date range.
| # | App | Market Share | Change | Status |
|---|---|---|---|---|
| 1 |  Klaviyo: Email Marketing & SMS | 68.10% | 11.96 | Climbing |
| 2 |  SendWILL Popup Email Marketing | 12.62% | 10.75 | Declining |
| 3 |  Smile: Loyalty Program Rewards | 6.76% | 1.10 | Climbing |
| 4 |  Preorder, Back In Stock ‑ STOQ | 4.95% | 2.04 | Declining |
| 5 |  Klaviyo: Product Reviews | 3.36% | 0.24 | Declining |
| 6 |  Track123 Order Tracking | 1.30% | 0.76 | Declining |
| 7 |  Attribuly: Abandoned cart | 1.15% | 0.40 | Climbing |
| 8 |  Powerful Contact Form Builder | 0.79% | 0.37 | Climbing |
| 9 |  EU Withdrawal Button Pro | 0.20% | 0.01 | Declining |
| 10 |  Zapiet ‑ Pickup + Delivery | 0.20% | 0.01 | Declining |
Showing 1-10 out of 23
Key Insights:
- Klaviyo: Email Marketing & SMS holds 68.1% share of klaviyo app installs — 55.5pp ahead of SendWILL Popup Email Marketing (12.6%).
- Top 3 apps (Klaviyo: Email Marketing & SMS, SendWILL Popup Email Marketing, Smile: Loyalty Program Rewards) account for 87.5% of all klaviyo install share — a concentrated market.
- Klaviyo: Email Marketing & SMS is gaining share fastest this month (+11.96pp) — the largest single gainer among the top klaviyo apps by share.
- SendWILL Popup Email Marketing is losing share fastest (-10.75pp) — could indicate a churning user base or a stronger challenger gaining ground.
Klaviyo Shopify Apps — Market Share Over Time
Monthly market share trajectory for the top 5 klaviyo Shopify apps over the past year — see who's gaining or losing install share month by month.
Charts Data
| App | Apr 2026 | May 2026 | Jun 2026 | Jul 2026 | Aug 2026 | Sep 2026 |
|---|---|---|---|---|---|---|
| Klaviyo: Email Marketing & SMS | 23.4%1.53 | 48.5%25.02 | 56.2%7.71 | 68.2%11.99 | 59.1%9.06 | 58.5%0.59 |
| Preorder, Back In Stock ‑ STOQ | 23.2%0.17 | 7.9%15.35 | 7.0%0.89 | 4.9%2.06 | 11.2%6.25 | 23.9%12.68 |
| SendWILL Popup Email Marketing | 35.4%0.01 | 29.2%6.23 | 23.3%5.92 | 12.6%10.7 | 15.3%2.73 | 7.1%8.22 |
| Smile: Loyalty Program Rewards | 6.7%0.05 | 6.2%0.53 | 5.7%0.43 | 6.8%1.1 | 7.7%0.9 | 5.7%2.01 |
| Powerful Contact Form Builder | 0.9% | 0.5%0.43 | 0.4%0.03 | 0.8%0.36 | 1.6%0.78 | 2.4%0.84 |
Key Insights:
- Klaviyo: Email Marketing & SMS's share expanded from 49.7% → 58.5% over the charted period.
- Of the top 5 tracked klaviyo apps, 3 grew share and 2 lost share — leader is widening the gap.
Top Klaviyo Shopify Apps by Country
Per-country market share rankings for klaviyo Shopify apps across 5 markets — see which apps lead in each country and where regional leaders diverge from the global leader.
| # | 🌎 Worldwide |  United States |  India |  China |  United Kingdom |
|---|---|---|---|---|---|
| 1 | |||||
| 2 | | ||||
| 3 | | | | | |
| 4 | | | | | |
| 5 | | | | | |
Key Insights:
- Klaviyo: Email Marketing & SMS leads klaviyo apps in 2 of 4 tracked markets (United States, United Kingdom).
- Klaviyo: Email Marketing & SMS leads worldwide, but 2 of 4 tracked markets crown a different leader — SendWILL Popup Email Marketing in India, SendWILL Popup Email Marketing in China.
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Top 5 Apps in Klaviyo
- Klaviyo: Email Marketing & SMS — Leads klaviyo apps with 58.5% install share, rated 4.7★ — losing share this month.
- Klaviyo: Product Reviews — Holds 1.7% of klaviyo app install share, rated 4.8★ — losing share this month.
- Preorder, Back In Stock ‑ STOQ — Holds 23.9% of klaviyo app install share, rated 5.0★ — gaining share this month.
- SendWILL Popup Email Marketing — Holds 7.1% of klaviyo app install share, rated 4.9★ — losing share this month.
- Smile: Loyalty Program Rewards — Holds 5.7% of klaviyo app install share, rated 4.9★ — losing share this month.
Klaviyo Shopify Apps — Frequently Asked Questions
1. Which klaviyo app has the highest market share on Shopify?
Klaviyo: Email Marketing & SMS dominates the klaviyo category on Shopify with 68.1% of installs — 55.5pp ahead of SendWILL Popup Email Marketing. This is a clear leader by share, so most merchants default to it unless they have a niche-fit reason to pick differently.
2. How is market share calculated for klaviyo Shopify apps?
For klaviyo (a keyword page), market share is rank-weighted — apps at position #1 carry roughly 40× the weight of apps at position #22, and apps beyond #22 are excluded. Each app's weighted score is divided by the total weighted score across the keyword to give the share %. This reflects Shopify search behaviour: most installs come from the top of the results.
3. Which klaviyo apps are gaining market share on Shopify?
Klaviyo: Email Marketing & SMS is gaining klaviyo app market share fastest this month, up +11.96pp versus 30 days ago. Switch the table sub-tab to "Market Share Changes" to see all gainers ordered by movement.
4. Which klaviyo apps are losing market share on Shopify?
SendWILL Popup Email Marketing has lost the most market share this month among klaviyo apps (-10.75pp). Sort the table by Change (Low to High) to see the full list of decliners.
5. Which countries drive the most klaviyo Shopify app installs?
United States drives the largest share of klaviyo app installs at 40.7%, followed by United Kingdom at 8.4% and Australia at 8.1%. Use the country picker on the third card to compare market leaders by country.
6. How many klaviyo apps does ShopDigest track on Shopify?
ShopDigest tracks 96 klaviyo apps on the Shopify App Store. Market share, rankings, and review data refresh weekly so you can track competitive shifts as they happen.
