Custom Formulas Shopify Apps – Analytics & Insights

Multifeed Google Shopping Feed holds the top spot for custom formulas with 34.4% market share, but the gap to challengers is closing, 16.0pp ahead of FeedFix | XML Import & Export (18.4%). Mulwi | 200+ Shopping Feeds sits at #3 with 9.2% share, rounding out the top tier. The top 3 apps together control 62.1% of custom formulas installs — a clear leadership tier with a meaningful long tail behind them. MP Google Shopping Feed 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.

Multifeed Google Shopping Feed (34.4%) and FeedFix | XML Import & Export (18.4%) sit close at the top of custom formulas apps, and MP Google Shopping Feed climbed 5 positions this month. Current rank is a thin signal in this kind of mover-heavy category — recent climbers often have stronger 6-month trajectory than today's leader.

Multifeed Google Shopping Feed climbed from #2 (May 2026) to #1 (Sep 2026) — a 1-position gain among custom formulas apps over the charted window. Across the top 5 plotted custom formulas apps, 2 improved their ranking while 1 declined — the category is moving upward overall. Multifeed Google Shopping Feed's share held near 34.4% from May 2026 to Sep 2026 — a stable install base for custom formulas apps rather than active gain or loss.

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

United States is the largest single market for custom formulas apps at 16.2% — but no country dominates, meaning custom formulas apps serve a globally distributed merchant base. United Kingdom follows at 11.5%, with Germany at 9.0%. Together, the top 3 markets account for 36.6% of custom formulas app installs worldwide. Netherlands (7.5%) and Australia (5.6%) round out the top 5. Netherlands is the fastest-growing market this month (+1.0pp), pointing to accelerating demand outside the established leaders.

With United States's 16.2% 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 570, FeedFix | XML Import & Export at 257, Feedyio: Product XML Feeds at 104 cumulative reviews. Mulwi | 200+ Shopping Feeds is closest to the milestone — its current count puts it roughly 57% 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.