Custom Invoices Shopify Apps – Market Share Breakdown
(Updated October 2026) See which custom invoices Shopify apps dominate installs and how their share has shifted over time. This keyword page shows the full market share table, monthly share trends for the leaders, and a country-level breakdown so you can compare global vs regional dominance.
Custom Invoices Shopify Apps — Full Market Share Table
All tracked custom invoices Shopify apps ranked by current install share, with change vs 30 days ago and Leader / Climbing / Declining / Stable status — filterable by country and date range.
| # | App | Market Share | Change | Status |
|---|---|---|---|---|
| 1 |  Order Printer Pro: PDF Invoice | 51.29% | 0.47 | Declining |
| 2 |  GST Pro: GST Invoice India | 17.88% | 2.54 | Declining |
| 3 |  WebPlanex: GST Invoice India | 13.51% | 5.66 | Climbing |
| 4 |  Oxilayer PDF Invoice Generator | 4.78% | 4.08 | Declining |
| 5 |  Order Printer Templates | 4.57% | 1.34 | Climbing |
| 6 |  Vify Order Printer PDF Invoice | 3.81% | 1.03 | Declining |
| 7 |  Numeral Sales Tax | 3.10% | 1.83 | Climbing |
| 8 |  Sufio: Invoices You Can Trust | 0.82% | 0.03 | Declining |
| 9 |  TaxCloud Sales Tax Automation | 0.08% | 0.68 | Declining |
| 10 |  Invoice Hero | 0.05% | 0.00 | Declining |
Showing 1-10 out of 24
Key Insights:
- Order Printer Pro: PDF Invoice holds 51.3% share of custom invoices app installs — 33.4pp ahead of GST Pro: GST Invoice India (17.9%).
- Top 3 apps (Order Printer Pro: PDF Invoice, GST Pro: GST Invoice India, WebPlanex: GST Invoice India) account for 82.7% of all custom invoices install share — a fragmented market.
- WebPlanex: GST Invoice India is gaining share fastest this month (+5.66pp) — the largest single gainer among the top custom invoices apps by share.
- Oxilayer PDF Invoice Generator is losing share fastest (-4.08pp) — could indicate a churning user base or a stronger challenger gaining ground.
Custom Invoices Shopify Apps — Market Share Over Time
Monthly market share trajectory for the top 5 custom invoices Shopify apps over the past year — see who's gaining or losing install share month by month.
Charts Data
| App | May 2026 | Jun 2026 | Jul 2026 | Aug 2026 | Sep 2026 | Oct 2026 |
|---|---|---|---|---|---|---|
| Order Printer Pro: PDF Invoice | 7.2% | 14.2%7.01 | 32.8%18.6 | 32.7%0.12 | 53.0%20.32 | 51.4%1.66 |
| GST Pro: GST Invoice India | 16.5% | 9.0%7.49 | 25.7%16.65 | 24.8%0.86 | 20.1%4.78 | 17.4%2.67 |
| WebPlanex: GST Invoice India | 1.1% | 4.1%3.06 | 7.4%3.28 | 9.3%1.88 | 7.7%1.59 | 14.1%6.38 |
| Order Printer Templates | 5.3% | 7.0%1.78 | 5.5%1.53 | 4.7%0.78 | 4.8%0.04 | 4.6%0.17 |
| Oxilayer PDF Invoice Generator | 4.0% | 8.4%4.38 | 11.8%3.35 | 10.8%0.93 | 8.5%2.34 | 4.6%3.92 |
Key Insights:
- Order Printer Pro: PDF Invoice's share expanded from 7.2% → 51.4% over the charted period.
- Of the top 5 tracked custom invoices apps, 4 grew share and 1 lost share — leader is widening the gap.
Top Custom Invoices Shopify Apps by Country
Per-country market share rankings for custom invoices Shopify apps across 5 markets — see which apps lead in each country and where regional leaders diverge from the global leader.
| # | 🌎 Worldwide |  United States |  India |  China |  United Kingdom |
|---|---|---|---|---|---|
| 1 | | | | | |
| 2 | | | | | |
| 3 | | | | | |
| 4 | | | | | |
| 5 | | |  | | |
Key Insights:
- Order Printer Pro: PDF Invoice leads custom invoices apps in 3 of 4 tracked markets (United States, China, United Kingdom).
- Order Printer Pro: PDF Invoice leads worldwide, but India bucks the trend — GST Pro: GST Invoice India leads there.
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Top 5 Apps in Custom Invoices
- Order Printer Templates — Leads custom invoices apps with 4.6% install share, rated 4.9★ — gaining share this month.
- GST Pro: GST Invoice India — Holds 17.4% of custom invoices app install share, rated 5.0★ — losing share this month.
- WebPlanex: GST Invoice India — Holds 14.1% of custom invoices app install share, rated 5.0★ — gaining share this month.
- Oxilayer PDF Invoice Generator — Holds 4.6% of custom invoices app install share, rated 5.0★ — losing share this month.
- Order Printer Pro: PDF Invoice — Holds 51.4% of custom invoices app install share, rated 4.9★ — losing share this month.
Custom Invoices Shopify Apps — Frequently Asked Questions
1. Which custom invoices app has the highest market share on Shopify?
Order Printer Pro: PDF Invoice ranks #1 by share among custom invoices apps at 51.3%, but the market is fragmented — multiple apps capture meaningful share. Compare the top 5 on features and pricing before deciding.
2. How is market share calculated for custom invoices Shopify apps?
For custom invoices (a keyword page), market share is rank-weighted — apps at position #1 carry roughly 40× the weight of apps at position #22, and apps beyond #22 are excluded. Each app's weighted score is divided by the total weighted score across the keyword to give the share %. This reflects Shopify search behaviour: most installs come from the top of the results.
3. Which custom invoices apps are gaining market share on Shopify?
WebPlanex: GST Invoice India is gaining custom invoices app market share fastest this month, up +5.66pp versus 30 days ago. Switch the table sub-tab to "Market Share Changes" to see all gainers ordered by movement.
4. Which custom invoices apps are losing market share on Shopify?
Oxilayer PDF Invoice Generator has lost the most market share this month among custom invoices apps (-4.08pp). Sort the table by Change (Low to High) to see the full list of decliners.
5. Which countries drive the most custom invoices Shopify app installs?
India drives the largest share of custom invoices app installs at 32.1%, followed by United States at 18.6% and Germany at 8.7%. Use the country picker on the third card to compare market leaders by country.
6. How many custom invoices apps does ShopDigest track on Shopify?
ShopDigest tracks 96 custom invoices apps on the Shopify App Store. Market share, rankings, and review data refresh weekly so you can track competitive shifts as they happen.
7. Why does the highest-share custom invoices app differ from the #1 ranked app?
Rank reflects an app's current position in the Shopify App Store under custom invoices (driven by Shopify's own algorithm), while market share on ShopDigest is estimated from review counts and other factors as a proxy for active installs. The two metrics move on independent dynamics, so the highest-share app and the #1-ranked app are not always the same — and a divergence between them is worth noting rather than assuming one will pull the other along. For custom invoices, Order Printer Pro: PDF Invoice leads on share; see the rankings tab for who currently holds #1 position.
