Custom Invoices Shopify Apps – Analytics & Insights

Order Printer Templates ranks #1 for custom invoices with 4.4% share — the leader position in a fragmented field where many apps are within striking distance, -15.1pp ahead of GST Pro: GST Invoice India (19.6%). Oxilayer PDF Invoice Generator sits at #3 with 9.0% share, rounding out the top tier. The top 3 apps together hold only 33.0% — meaning custom invoices is a fragmented market where lower-ranked apps still capture significant share. Simple Invoice ‑ Order Printer 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 Invoices is a fragmented market — the top 3 apps together hold only 33.0% of installs, leaving Order Printer Templates's 4.4% lead modest in absolute terms and Oxilayer PDF Invoice Generator at 9.0% still capturing meaningful share. With this many viable apps, pricing model and integration depth differentiate custom invoices options more than rank does.

Order Printer Templates held #1 steadily from May 2026 to Sep 2026 — an entrenched leader in custom invoices that challengers haven't displaced. Across the top 5 plotted custom invoices apps, 4 improved their ranking while 0 declined — the category is moving upward overall. Order Printer Pro: PDF Invoice's share expanded +45.4pp from 7.3% (May 2026) to 52.6% (Sep 2026) — a sustained widening of the gap against other custom invoices apps over this window.

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

India is the largest single market for custom invoices apps at 28.3% — but no country dominates, meaning custom invoices apps serve a globally distributed merchant base. United States follows at 17.8%, with Germany at 9.4%. Together, the top 3 markets account for 55.5% of custom invoices app installs worldwide. United Kingdom (7.0%) and Australia (5.8%) round out the top 5. United States is the fastest-growing market this month (+5.3pp), pointing to accelerating demand outside the established leaders.

With India's 28.3% as the largest single market and the rest spread across many countries, the leading custom invoices apps tend to be region-agnostic by design — geography matters less for app choice here than features, pricing, and support quality.

Order Printer Pro: PDF Invoice is the only app in this set to have crossed 1,000 reviews, reaching the milestone in 104 months since launch. The remaining 4 custom invoices apps tracked here are still building toward 1,000 — current cumulative review counts give the clearest picture of where each one stands today.

4 apps on this chart haven't yet crossed 1,000 reviews: Order Printer Templates at 679, WebPlanex: GST Invoice India at 461, GST Pro: GST Invoice India at 251, Oxilayer PDF Invoice Generator at 166 cumulative reviews. Order Printer Templates is closest to the milestone — its current count puts it roughly 68% of the way to 1,000.

Order Printer Pro: PDF Invoice 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 custom invoices category.