GSTFLY vs Sales Tax Automation by TaxRex

Based on the data on this page, Sales Tax Automation by TaxRex is the stronger choice for most Shopify App Store merchants — 5.0★ vs GSTFLY's 0.0★ is a meaningful gap that usually reflects real product or support quality differences across the user base.

Pricing entry tiers: GSTFLY at Free trial available, Sales Tax Automation by TaxRex at Free trial available. Check each app's tier structure for the capacity limits you actually need before deciding — the headline number is the same shape, but the gating shape per tier (seats, usage volume, integrations) varies.

Sales Tax Automation by TaxRex has the larger user base (127 reviews vs 0), which usually maps to broader integration coverage, faster bug-fix cadence, and a deeper bench of community workflow patterns. GSTFLY's smaller cohort can be an advantage for niche workflows where the bigger app has accumulated bloat.

Recommended by size: small/early-stage merchants who need fast install and low risk should default to Sales Tax Automation by TaxRex; mid-market and enterprise merchants with specific feature requirements should evaluate both — GSTFLY's 0-review base may include the workflow context that matches your specific use case better than Sales Tax Automation by TaxRex's broader-but-shallower coverage.

This verdict is generated from the live marketplace data on this page — rating, review count, pricing tier, and category position all refresh from the canonical Shopify App Store listing every 24 hours. AppRanks does not accept payment to influence comparison outcomes; the methodology is documented on the About page and applies identically to every pair on the site.

Is GSTFLY or Sales Tax Automation by TaxRex cheaper?

Both GSTFLY and Sales Tax Automation by TaxRex offer paid plans only. GSTFLY starts at Free trial available; Sales Tax Automation by TaxRex starts at Free trial available. Compare the per-tier features in the Pricing section above before committing.

Should I choose GSTFLY or Sales Tax Automation by TaxRex?

AppRanks cannot separate these two on rating, because neither publishes one. Sales Tax Automation by TaxRex does carry the larger published review base (127 vs 0). Read both apps' detail pages for the feature breakdown and recent listing changes.

Which is faster to set up, GSTFLY or Sales Tax Automation by TaxRex?

Both apps are one-click installs from the Shopify App Store. Sales Tax Automation by TaxRex has the deeper published review base (127 vs 0), which often — though not always — accompanies better-tested setup docs. AppRanks doesn't measure setup time directly: read the recent reviews on each app's detail page for user-reported install experience.

Which works better for small vs large Shopify App Store merchants?

GSTFLY typically suits early-stage and growth-mode teams based on its published review base (0 reviews). Sales Tax Automation by TaxRex typically suits early-stage and growth-mode teams based on its published review base (127 reviews). A larger review base generally means the app has been exercised at scale — relevant if you are processing high volume or handling enterprise compliance requirements.

Can I migrate data between GSTFLY and Sales Tax Automation by TaxRex?

Migration support varies by app and category. GSTFLY and Sales Tax Automation by TaxRex both publish their export options on their marketplace listing pages (or in their support docs); some apps offer one-click import from competitors, others require CSV. The fastest check: search "import from GSTFLY" in each app's help center. AppRanks does not track migration tooling directly — this is a category-specific capability worth verifying before commitment.