Custom Html Shopify Apps – Analytics & Insights

BL Custom HTML CSS JS Liquid ranks #1 for custom html with 0 share — the leader position in a fragmented field where many apps are within striking distance, -72.6pp ahead of Kaching Bundles App & Upsells (72.6%). Easify Custom Product Options sits at #3 with 14.2% share, rounding out the top tier. Together, the top 3 apps absorb 86.8% of all custom html installs — a highly concentrated landscape with limited room for new entrants. Kaching Bundles App & Upsells is the standout mover this month, climbing 5 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.

Custom Html is a fragmented market — the top 3 apps together hold only 86.8% of installs, leaving BL Custom HTML CSS JS Liquid's 0 lead modest in absolute terms and Easify Custom Product Options at 14.2% still capturing meaningful share. With this many viable apps, pricing model and integration depth differentiate custom html options more than rank does.

BL Custom HTML CSS JS Liquid held #1 steadily from May 2026 to Sep 2026 — an entrenched leader in custom html that challengers haven't displaced. Across the top 5 plotted custom html apps, 3 improved their ranking while 1 declined — the category is moving upward overall. Kaching Bundles App & Upsells's share expanded +23.6pp from 49.0% (May 2026) to 72.7% (Sep 2026) — a sustained widening of the gap against other custom html apps over this window.

4 of 5 plotted custom html apps moved positions in this window — recent trajectory beats current rank as a signal when a category is reshuffling this actively.

United States dominates demand for custom html apps with 32.2% of all tracked installs — a single market that effectively defines the category's product priorities. United Kingdom follows at 7.5%, with Australia at 7.2%. Together, the top 3 markets account for 46.9% of custom html app installs worldwide. Netherlands (6.4%) and France (5.1%) round out the top 5. Netherlands is the fastest-growing market this month (+1.4pp), pointing to accelerating demand outside the established leaders.

With 32.2% of custom html 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 (7.5%) and other regions sometimes find better fit in apps that over-index outside United States.

Kaching CartDrawer Cart Upsell reached 1,000 reviews in 17 months since launch — the fastest ramp among the top 5 custom html apps tracked here. Easify Custom Product Options in 26 months, and Kaching Bundles App & Upsells took 37 months to cross the same milestone, a 20-month spread between the fastest and slowest in the set.

2 apps on this chart haven't yet crossed 1,000 reviews: Bundlex Product Bundles Upsell at 145, BL Custom HTML CSS JS Liquid at 1 cumulative reviews. Bundlex Product Bundles Upsell is closest to the milestone — its current count puts it roughly 14% of the way to 1,000.

The 20-month spread between Kaching CartDrawer Cart Upsell and Kaching Bundles App & Upsells reaching 1,000 reviews suggests a competitive custom html category — leaders pulled ahead by roughly a year, but no single app dominated launch-to-milestone speed. The ramp differences likely reflect both product quality and timing-of-launch rather than one clear category winner.