Shop-Sign-In Shopify Apps – Analytics & Insights

Shopify Forms ranks #1 for shop-sign-in with 18.3% share — the leader position in a fragmented field where many apps are within striking distance, -62.2pp ahead of Klaviyo: Email Marketing & SMS (80.4%). Octane AI: Advanced Quiz Maker sits at #3 with 1.2% 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. Shopify Forms is the standout mover this month, climbing 1 position — 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.

Shop-Sign-In is a fragmented market — the top 3 apps together hold only 99.9% of installs, leaving Shopify Forms's 18.3% lead modest in absolute terms and Octane AI: Advanced Quiz Maker at 1.2% still capturing meaningful share. With this many viable apps, pricing model and integration depth differentiate shop-sign-in options more than rank does.

Shopify Forms climbed from #2 (Nov 2025) to #1 (Nov 2026) — a 1-position gain among shop-sign-in apps over the charted window. Among the top 4 plotted shop-sign-in apps, 1 improved and 1 declined — rankings reshuffled without a single category-wide direction. Shopify Forms's share held near 18.3% from Nov 2025 to Nov 2026 — a stable install base for shop-sign-in apps rather than active gain or loss.

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.

United States dominates demand for shop-sign-in apps with 42.9% of all tracked installs — a single market that effectively defines the category's product priorities. Australia follows at 7.6%, with United Kingdom at 7.5%. Together, the top 3 markets account for 58.1% of shop-sign-in app installs worldwide. Canada (5.3%) and Germany (3.5%) round out the top 5. Australia is the fastest-growing market this month (+0.7pp), pointing to accelerating demand outside the established leaders.

With 42.9% of shop-sign-in 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 Australia (7.6%) and other regions sometimes find better fit in apps that over-index outside United States.

Klaviyo: Email Marketing & SMS is the only app in this set to have crossed 1,000 reviews, reaching the milestone in 113 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 750, Original Wheelio spin pop‑ups at 248, Octane AI: Advanced Quiz Maker at 209 cumulative reviews. Shopify Forms is closest to the milestone — its current count puts it roughly 75% 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.