Liability Calculation Shopify Apps — Full Market Share Table
All tracked liability calculation 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 |  GST Pro: GST Invoice India | 48.84% | 5.35 | Climbing |
| 2 |  WebPlanex: GST Invoice India | 36.88% | 11.20 | Climbing |
| 3 |  Sales Tax Filings ‑ BreezyFile | 8.40% | 8.21 | Climbing |
| 4 |  Sales Tax Automation by TaxRex | 3.81% | 3.37 | Climbing |
| 5 |  TaxCloud Sales Tax Automation | 0.75% | 1.56 | Declining |
| 6 |  Comply | 0.62% | 0.60 | Climbing |
| 7 |  Yonda Sales Tax Automation | 0.30% | 0.18 | Climbing |
| 8 |  Sidr ‑ Sales Tax Automation | 0.17% | 0.11 | Declining |
| 9 |  Kintsugi Sales Tax Automation | 0.17% | 0.05 | Climbing |
| 10 |  F: PDF Invoice Generator | 0.03% | 0.01 | Climbing |
Showing 1-10 out of 23
Key Insights:
- GST Pro: GST Invoice India holds 48.8% share of liability calculation app installs — 12.0pp ahead of WebPlanex: GST Invoice India (36.9%).
- Top 3 apps (GST Pro: GST Invoice India, WebPlanex: GST Invoice India, Sales Tax Filings ‑ BreezyFile) account for 94.1% of all liability calculation install share — a concentrated market.
- WebPlanex: GST Invoice India is gaining share fastest this month (+11.20pp) — the largest single gainer among the top liability calculation apps by share.
- TaxCloud Sales Tax Automation is losing share fastest (-1.56pp) — could indicate a churning user base or a stronger challenger gaining ground.
Liability Calculation Shopify Apps — Market Share Over Time
Monthly market share trajectory for the top 5 liability calculation 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 |
|---|---|---|---|---|---|---|
| GST Pro: GST Invoice India | 62.0% | 55.6%6.37 | 56.4%0.77 | 44.1%12.27 | 43.7%0.42 | 48.8%5.14 |
| WebPlanex: GST Invoice India | 26.0% | 28.0%2.06 | 24.6%3.41 | 25.0%0.36 | 25.4%0.44 | 36.9%11.45 |
| Sales Tax Filings ‑ BreezyFile | 0.3% | 0.2%0.15 | 0.3%0.06 | 0.3%– | 0.5%0.27 | 8.4%7.88 |
| Sales Tax Automation by TaxRex | 2.5% | 2.2%0.29 | 0.8%1.47 | 0.3%0.41 | 0.4%0.10 | 3.8%3.37 |
| TaxCloud Sales Tax Automation | 7.3% | 11.7%4.40 | 9.3%2.39 | 3.7%5.60 | 2.3%1.41 | 0.8%1.53 |
Key Insights:
- GST Pro: GST Invoice India's share contracted from 62.0% → 48.8% over the charted period.
- Of the top 5 tracked liability calculation apps, 3 grew share and 2 lost share — challengers are eating into leader's share.
Top Liability Calculation Shopify Apps by Country
Per-country market share rankings for liability calculation 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 | GST Pro: GST Invoice India | Sales Tax Filings ‑ BreezyFile | GST Pro: GST Invoice India | GST Pro: GST Invoice India | Yonda Sales Tax Automation |
| 2 | WebPlanex: GST Invoice India | Sales Tax Automation by TaxRex | WebPlanex: GST Invoice India | WebPlanex: GST Invoice India | Sidr ‑ Sales Tax Automation |
| 3 | Sales Tax Filings ‑ BreezyFile | TaxCloud Sales Tax Automation | Sales Tax Filings ‑ BreezyFile | Sales Tax Filings ‑ BreezyFile |  EAS EU & UK Compliance |
| 4 | Sales Tax Automation by TaxRex | Sidr ‑ Sales Tax Automation | Sales Tax Automation by TaxRex | Sales Tax Automation by TaxRex | GST Pro: GST Invoice India |
| 5 | TaxCloud Sales Tax Automation | Kintsugi Sales Tax Automation | Comply | Comply | WebPlanex: GST Invoice India |
Key Insights:
- GST Pro: GST Invoice India leads liability calculation apps in 2 of 4 tracked markets (India, China).
- GST Pro: GST Invoice India leads worldwide, but 2 of 4 tracked markets crown a different leader — Sales Tax Filings ‑ BreezyFile in United States, Yonda Sales Tax Automation in United Kingdom.
Top 5 Apps in Liability Calculation
- GST Pro: GST Invoice India — Leads liability calculation apps with 48.8% install share, rated 5.0★ — gaining share this month.
- WebPlanex: GST Invoice India — Holds 36.9% of liability calculation app install share, rated 5.0★ — gaining share this month.
- Sales Tax Filings ‑ BreezyFile — Holds 8.4% of liability calculation app install share, rated 5.0★ — gaining share this month.
- Sales Tax Automation by TaxRex — Holds 3.8% of liability calculation app install share, rated 5.0★ — gaining share this month.
- Comply — Holds 0.6% of liability calculation app install share, rated 4.1★ — gaining share this month.
Liability Calculation Shopify Apps — Frequently Asked Questions
1. Which liability calculation app has the highest market share on Shopify?
GST Pro: GST Invoice India dominates the liability calculation category on Shopify with 48.8% of installs — 12.0pp ahead of WebPlanex: GST Invoice India. This is a clear leader by share, so most merchants default to it unless they have a niche-fit reason to pick differently.
2. How is market share calculated for liability calculation Shopify apps?
For liability calculation (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 liability calculation apps are gaining market share on Shopify?
WebPlanex: GST Invoice India is gaining liability calculation app market share fastest this month, up +11.20pp versus 30 days ago. Switch the table sub-tab to "Market Share Changes" to see all gainers ordered by movement.
4. Which liability calculation apps are losing market share on Shopify?
TaxCloud Sales Tax Automation has lost the most market share this month among liability calculation apps (-1.56pp). Sort the table by Change (Low to High) to see the full list of decliners.
5. Which countries drive the most liability calculation Shopify app installs?
India drives the largest share of liability calculation app installs at 85.7%, followed by United States at 12.7% and Spain at 0.4%. Use the country picker on the third card to compare market leaders by country.
6. How many liability calculation apps does ShopDigest track on Shopify?
ShopDigest tracks 96 liability calculation apps on the Shopify App Store. Market share, rankings, and review data refresh weekly so you can track competitive shifts as they happen.
