Shop-Sign-In Shopify Apps – Analytics & Insights
(Updated September 2026) Track the top shop-sign-in Shopify apps with live rankings, market share, geography, and review data — updated weekly from the Shopify App Store. This collection page shows where each app stands today and how its position has shifted over time.
Top Shop-Sign-In Shopify Apps Ranked Today
Top 4 shop-sign-in 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 | 82.13% 1.51 | 3,337 86 |
 Shopify Forms | 2 | 16.78% 1.70 | 732 20 |
 Octane AI: Advanced Quiz Maker | 3 | 0.99% 0.30 | 209 3 |
 Original Wheelio spin pop‑ups | 4 | 0.11% 0.12 | 250 1 |
Key Insights:
- Klaviyo: Email Marketing & SMS commands 82.1% market share, 65.4pp ahead of Shopify Forms — a concentrated shop-sign-in category.
- All 4 top-ranked shop-sign-in apps held their positions stable this period — a settled market.
- Klaviyo: Email Marketing & SMS added the most new reviews this month (+86) — strong adoption momentum.
Live Ranking and Market Share Trends for Shop-Sign-In Shopify Apps
Monthly ranking and market share trends for the top 4 shop-sign-in 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 |
| Shopify Forms | #2 | #2 | #2 | #2 | #2 | #2 |
| Octane AI: Advanced Quiz Maker | #3 | #3 | #3 | #3 | #3 | #3 |
| Original Wheelio spin pop‑ups | #4 | #4 | #4 | #4 | #4 | #4 |
Key Insights:
- Klaviyo: Email Marketing & SMS's ranking held steady from #1 to #1 over the charted period.
- 0 of 4 top shop-sign-in apps improved their position; 0 declined — a stable market.
- Klaviyo: Email Marketing & SMS's market share is 82.1% — gaining +6.1pp since the start of the chart.
Shop-Sign-In Shopify Apps — Market Share by Country
Top 5 countries driving installs for shop-sign-in Shopify apps, with current market share and 30-day change versus the previous month.
| Country | Market Share | Change |
|---|---|---|
 United States | 42.1% | 0.54 |
 United Kingdom | 7.8% | 0.72 |
 Australia | 6.8% | 0.41 |
 Canada | 4.9% | 0.49 |
 Germany | 3.2% | 0.24 |
Key Insights:
- United States accounts for 42.1% of shop-sign-in app installs — the single largest market.
- Top 3 markets (United States, United Kingdom, Australia) collectively cover 56.7% of all tracked shop-sign-in installs — highly concentrated demand.
- United Kingdom is the fastest-growing market this month (+0.7pp) — emerging demand worth watching.
Fastest to 1,000 Reviews — Shop-Sign-In Shopify Apps
Race-style view of how the top 4 shop-sign-in 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 |
|---|---|---|
| Klaviyo: Email Marketing & SMS | 114 | 3,027 |
| Shopify Forms | Not yet reached | 678 |
| Original Wheelio spin pop‑ups | Not yet reached | 215 |
| Octane AI: Advanced Quiz Maker | Not yet reached | 185 |
Key Insights:
- Klaviyo: Email Marketing & SMS reached 1,000 reviews fastest — in 114 months since launch.
- 3 of the top 4 shop-sign-in apps haven't yet crossed 1,000 reviews — Shopify Forms is closest at 678 cumulative.
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Top Shop-Sign-In Shopify Apps Ranked by Position
Klaviyo: Email Marketing & SMS dominates shop-sign-in with 82.1% market share — a clear category leader Shopify merchants gravitate to first, 65.4pp ahead of Shopify Forms (16.8%). Octane AI: Advanced Quiz Maker sits at #3 with 1.0% share, rounding out the top tier. Together, the top 3 apps absorb 99.9% of all shop-sign-in installs — a highly concentrated landscape with limited room for new entrants. Rankings have been notably stable this month, with the top 5 holding their positions — a sign of a mature, settled shop-sign-in market.
Klaviyo: Email Marketing & SMS's 82.1% lead has held stably this month, with the top 3 apps capturing 99.9% of all shop-sign-in installs. Shopify Forms (16.8%) is the natural alternative when store fit or pricing rules out Klaviyo: Email Marketing & SMS.
Live Ranking and Market Share Trends Across Shop-Sign-In Shopify Apps
Klaviyo: Email Marketing & SMS held #1 steadily from Sep 2025 to Sep 2026 — an entrenched leader in shop-sign-in that challengers haven't displaced. Klaviyo: Email Marketing & SMS's share expanded +6.1pp from 76.0% (Sep 2025) to 82.1% (Sep 2026) — a sustained widening of the gap against other shop-sign-in apps over this window.
Stable rankings across the top 4 plotted shop-sign-in apps mean merchants have largely settled on their preferences — challengers below the top 4 face an uphill path to break in.
Review Growth Velocity in Shop-Sign-In — Which Apps Grew Fastest
Klaviyo: Email Marketing & SMS is the only app in this set to have crossed 1,000 reviews, reaching the milestone in 114 months since launch. The remaining 3 shop-sign-in apps tracked here are still building toward 1,000 — current cumulative review counts give the clearest picture of where each one stands today.
3 apps on this chart haven't yet crossed 1,000 reviews: Shopify Forms at 678, Original Wheelio spin pop‑ups at 215, Octane AI: Advanced Quiz Maker at 185 cumulative reviews. Shopify Forms is closest to the milestone — its current count puts it roughly 68% of the way to 1,000.
Klaviyo: Email Marketing & SMS is the only app in this set to have crossed 1,000 reviews so far — a useful signal for merchants that one app has already proved sustained adoption while the others remain in the "promising but unproven" tier of the shop-sign-in category.
Top 4 Apps in Shop-Sign-In
- Klaviyo: Email Marketing & SMS — Category leader for shop-sign-in with 82.1% market share and 4.7★.
- Shopify Forms — Ranks #2 for shop-sign-in with 16.8% market share and 4.5★.
- Octane AI: Advanced Quiz Maker — Ranks #3 for shop-sign-in with 1.0% market share and 4.9★.
- Original Wheelio spin pop‑ups — Ranks #4 for shop-sign-in with 0.1% market share and 4.7★.
Shop-Sign-In Shopify Apps — Frequently Asked Questions
1. What is the best shop-sign-in app on Shopify?
Klaviyo: Email Marketing & SMS is the leading shop-sign-in app on Shopify, holding 82.1% of category market share with 3,337 reviews — a clear default for most merchants.
2. Which shop-sign-in app has the highest market share on Shopify?
Klaviyo: Email Marketing & SMS holds the highest market share among shop-sign-in apps at 82.1% (+1.51pp vs 30 days ago). Market share here is estimated from each app's recent review velocity.
3. How many shop-sign-in apps are tracked on Shopify?
ShopDigest tracks 4 shop-sign-in apps on the Shopify App Store. Rankings, market share, geography, and review data refresh weekly.
4. Which shop-sign-in app is gaining merchants the fastest on Shopify?
Klaviyo: Email Marketing & SMS is adding new reviews fastest this month (+86), a strong signal of active merchant adoption.
5. Where are shop-sign-in apps most popular on Shopify?
United States has the highest concentration of shop-sign-in app installs at 42.1%, followed by United Kingdom at 7.8%. The Geography tab shows the full country-by-country breakdown.
6. Which shop-sign-in app reached 1,000 reviews fastest on Shopify?
Klaviyo: Email Marketing & SMS hit 1,000 reviews in 114 months since launch — the fastest review ramp among tracked shop-sign-in Shopify apps. See the Review Champions chart above for the full race.
