Klaviyo Shopify Apps – Analytics & Insights
(Updated September 2026) Track the top klaviyo Shopify apps with live rankings, market share, geography, and review data — updated weekly from the Shopify App Store. This keyword page shows where each app stands today and how its position has shifted over time.
Top Klaviyo Shopify Apps Ranked Today
Top 10 klaviyo Shopify apps ranked by current App Store position, with market share and review counts. Updated weekly.
| App | Rank | Market Share | Reviews |
|---|---|---|---|
 Klaviyo: Email Marketing & SMS | 1 | 58.50% 0.37 | 3,337 86 |
 Klaviyo: Product Reviews | 2 | 1.68% 0.48 | 230 3 |
 Preorder, Back In Stock ‑ STOQ | 3 2 | 23.86% 12.64 | 3,751 113 |
 SendWILL Popup Email Marketing | 4 1 | 7.09% 8.30 | 7,776 25 |
 Smile: Loyalty Program Rewards | 5 1 | 5.71% 2.07 | 4,607 60 |
 Powerful Contact Form Builder | 6 1 | 2.41% 0.84 | 2,525 83 |
 Littledata ‑ The Data Layer | 7 3 | 0.05% 0.04 | 142 2 |
 Abandoned Cart Email Marketing | 8 4 | 0.07% 0.06 | 173 11 |
 WhatsApp Chat & Abandoned Cart | 9 10 | 0.00% | 0 0 |
 Track123 Order Tracking | 10 4 | 0.33% 2.04 | 1,737 24 |
Key Insights:
- Klaviyo: Email Marketing & SMS commands 58.5% market share, 56.8pp ahead of Klaviyo: Product Reviews — a concentrated klaviyo category.
- In the last 30 days, 5 apps climbed and 3 dropped in ranking among the top 10 tracked klaviyo apps.
- Preorder, Back In Stock ‑ STOQ added the most new reviews this month (+113) — strong adoption momentum.
Live Ranking and Market Share Trends for Klaviyo Shopify Apps
Monthly ranking and market share trends for the top 5 klaviyo Shopify apps over the past year — see how each app's App Store position and market share have shifted month by month.
Charts Data
| App | Apr 2026 | May 2026 | Jun 2026 | Jul 2026 | Aug 2026 | Sep 2026 |
|---|---|---|---|---|---|---|
| Klaviyo: Email Marketing & SMS | #1 | #1 | #1 | #1 | #1 | #1 |
| Klaviyo: Product Reviews | #2 | #2 | #2 | #2 | #2 | #2 |
| Preorder, Back In Stock ‑ STOQ | #4 | #62 | #6 | #71 | #52 | #32 |
| SendWILL Popup Email Marketing | #3 | #3 | #3 | #41 | #31 | #41 |
| Smile: Loyalty Program Rewards | #5 | #5 | #5 | #5 | #41 | #51 |
Key Insights:
- Klaviyo: Email Marketing & SMS's ranking held steady from #1 to #1 over the charted period.
- 1 of 5 top klaviyo apps improved their position; 2 declined — a stable market.
- Klaviyo: Email Marketing & SMS's market share is 58.5% — gaining +8.8pp since the start of the chart.
Klaviyo Shopify Apps — Market Share by Country
Top 5 countries driving installs for klaviyo Shopify apps, with current market share and 30-day change versus the previous month.
| Country | Market Share | Change |
|---|---|---|
 United States | 40.7% | 0.10 |
 United Kingdom | 8.4% | 0.62 |
 Australia | 8.1% | 0.85 |
 Canada | 5.5% | 0.62 |
 Germany | 3.3% | 0.23 |
Key Insights:
- United States accounts for 40.7% of klaviyo app installs — the single largest market.
- Top 3 markets (United States, United Kingdom, Australia) collectively cover 57.2% of all tracked klaviyo installs — highly concentrated demand.
- Australia is the fastest-growing market this month (+0.8pp) — emerging demand worth watching.
Fastest to 1,000 Reviews — Klaviyo Shopify Apps
Race-style view of how the top 5 klaviyo Shopify apps reached 1,000 reviews — months since launch on the X-axis, cumulative review count on the Y-axis.
Charts Data
| App | Months to Reach 1,000 Reviews | Current Review Count |
|---|---|---|
| SendWILL Popup Email Marketing | 12 | 7,500 |
| Preorder, Back In Stock ‑ STOQ | 38 | 3,554 |
| Smile: Loyalty Program Rewards | 80 | 4,233 |
| Klaviyo: Email Marketing & SMS | 114 | 3,027 |
| Klaviyo: Product Reviews | Not yet reached | 222 |
Key Insights:
- SendWILL Popup Email Marketing reached 1,000 reviews fastest — in 12 months since launch.
- Preorder, Back In Stock ‑ STOQ crossed 1,000 reviews in 38 months — 26 months behind SendWILL Popup Email Marketing.
- Klaviyo: Product Reviews is still building toward 1,000 reviews — currently at 222 cumulative.
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Top Klaviyo Shopify Apps Ranked by Position
Klaviyo: Email Marketing & SMS dominates klaviyo with 58.5% market share — a clear category leader Shopify merchants gravitate to first, 56.8pp ahead of Klaviyo: Product Reviews (1.7%). Preorder, Back In Stock ‑ STOQ sits at #3 with 23.9% share, rounding out the top tier. Together, the top 3 apps absorb 84.0% of all klaviyo installs — a highly concentrated landscape with limited room for new entrants. WhatsApp Chat & Abandoned Cart is the standout mover this month, climbing 10 positions — a momentum signal worth tracking.
Klaviyo: Email Marketing & SMS's 58.5% lead has held stably this month, with the top 3 apps capturing 84.0% of all klaviyo installs. Klaviyo: Product Reviews (1.7%) is the natural alternative when store fit or pricing rules out Klaviyo: Email Marketing & SMS.
Live Ranking and Market Share Trends Across Klaviyo Shopify Apps
Klaviyo: Email Marketing & SMS held #1 steadily from Sep 2025 to Sep 2026 — an entrenched leader in klaviyo that challengers haven't displaced. Across the top 5 plotted klaviyo apps, 2 lost rank positions while only 1 improved — consolidation at the top. Klaviyo: Email Marketing & SMS's share expanded +8.8pp from 49.7% (Sep 2025) to 58.5% (Sep 2026) — a sustained widening of the gap against other klaviyo apps over this window.
Stable rankings across the top 5 plotted klaviyo apps mean merchants have largely settled on their preferences — challengers below the top 5 face an uphill path to break in.
Review Growth Velocity in Klaviyo — Which Apps Grew Fastest
SendWILL Popup Email Marketing reached 1,000 reviews in 12 months since launch — the fastest ramp among the top 5 klaviyo apps tracked here. Preorder, Back In Stock ‑ STOQ in 38 months, Smile: Loyalty Program Rewards in 80 months, and Klaviyo: Email Marketing & SMS took 114 months to cross the same milestone, a 102-month spread between the fastest and slowest in the set.
1 app on this chart hasn't yet crossed 1,000 reviews: Klaviyo: Product Reviews at 222 cumulative reviews. Klaviyo: Product Reviews is closest to the milestone — its current count puts it roughly 22% of the way to 1,000.
The 102-month gap between SendWILL Popup Email Marketing's and Klaviyo: Email Marketing & SMS's time-to-1,000 highlights how unevenly product-market fit landed across this klaviyo 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.
Top 5 Apps in Klaviyo
- Klaviyo: Email Marketing & SMS — Category leader for klaviyo with 58.5% market share and 4.7★.
- Klaviyo: Product Reviews — Ranks #2 for klaviyo with 1.7% market share and 4.8★.
- Preorder, Back In Stock ‑ STOQ — Climbed 2 positions this month to rank #3 — 23.9% share, 5.0★.
- SendWILL Popup Email Marketing — Currently ranked #4 with 7.1% market share and 4.9★.
- Smile: Loyalty Program Rewards — Currently ranked #5 with 5.7% market share and 4.9★.
Klaviyo Shopify Apps — Frequently Asked Questions
1. What is the best klaviyo app on Shopify?
Klaviyo: Email Marketing & SMS is the leading klaviyo app on Shopify, holding 58.5% of category market share with 3,337 reviews — a clear default for most merchants.
2. Which klaviyo app has the highest market share on Shopify?
Klaviyo: Email Marketing & SMS holds the highest market share among klaviyo apps at 58.5% (-0.37pp vs 30 days ago). Market share here is estimated from each app's recent review velocity, with rank-weighted adjustment because positions in keyword search drive most installs.
3. How many klaviyo apps are tracked on Shopify?
ShopDigest tracks 96 klaviyo apps on the Shopify App Store. Rankings, market share, geography, and review data refresh weekly.
4. Which klaviyo app is growing the fastest on Shopify?
WhatsApp Chat & Abandoned Cart has shown the strongest ranking momentum, climbing 10 positions over the past 30 days. Use the Rankings tab to see full month-over-month trajectories.
5. Where are klaviyo apps most popular on Shopify?
United States has the highest concentration of klaviyo app installs at 40.7%, followed by United Kingdom at 8.4%. The Geography tab shows the full country-by-country breakdown.
6. How is market share calculated for klaviyo on Shopify keyword pages?
For keyword pages, 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. This reflects the reality that Shopify keyword search traffic concentrates heavily at the top of results.
7. Which klaviyo app reached 1,000 reviews fastest on Shopify?
SendWILL Popup Email Marketing hit 1,000 reviews in 12 months since launch — the fastest review ramp among tracked klaviyo Shopify apps. See the Review Champions chart above for the full race.
