Custom Formulas Shopify Apps – Analytics & Insights

Multifeed Google Shopping Feed holds the top spot for custom formulas with 28.9% market share, but the gap to challengers is closing, 16.3pp ahead of Mulwi | 200+ Shopping Feeds (12.7%). Simprosys Google Shopping Feed sits at #3 with 51.8% share, rounding out the top tier. Together, the top 3 apps absorb 93.4% of all custom formulas installs — a highly concentrated landscape with limited room for new entrants. Flexify: Facebook Product Feed is the standout mover this month, climbing 2 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.

Multifeed Google Shopping Feed leads at 28.9%, only 16.3pp ahead of Mulwi | 200+ Shopping Feeds (12.7%), with rankings stable this month. When the top two custom formulas apps demonstrate similar real-world adoption, fit-for-store usually matters more than rank — comparing pricing model, integration depth, and support hours separates them better than the share gap does.

Multifeed Google Shopping Feed climbed from #2 (May 2026) to #1 (Oct 2026) — a 1-position gain among custom formulas apps over the charted window. Across the top 5 plotted custom formulas apps, 3 improved their ranking while 1 declined — the category is moving upward overall. Multifeed Google Shopping Feed's share held near 28.9% from May 2026 to Oct 2026 — a stable install base for custom formulas apps rather than active gain or loss.

Stable rankings across the top 5 plotted custom formulas apps mean merchants have largely settled on their preferences — challengers below the top 5 face an uphill path to break in.

United States is the largest single market for custom formulas apps at 19.5% — but no country dominates, meaning custom formulas apps serve a globally distributed merchant base. United Kingdom follows at 11.8%, with Germany at 7.8%. Together, the top 3 markets account for 39.1% of custom formulas app installs worldwide. Australia (7.3%) and Netherlands (6.7%) round out the top 5.

With United States's 19.5% as the largest single market and the rest spread across many countries, the leading custom formulas apps tend to be region-agnostic by design — geography matters less for app choice here than features, pricing, and support quality.

Simprosys Google Shopping Feed reached 1,000 reviews in 47 months since launch — the fastest ramp among the top 5 custom formulas apps tracked here. Multifeed Google Shopping Feed crossed the same milestone in 69 months, 22 months behind.

3 apps on this chart haven't yet crossed 1,000 reviews: Mulwi | 200+ Shopping Feeds at 610, FeedFix | XML Import & Export at 281, LC Custom Google Shopping Feed at 112 cumulative reviews. Mulwi | 200+ Shopping Feeds is closest to the milestone — its current count puts it roughly 61% of the way to 1,000.

The 22-month spread between Simprosys Google Shopping Feed and Multifeed Google Shopping Feed reaching 1,000 reviews suggests a competitive custom formulas 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.