DutyCalc vs No Worries Sales Tax
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Oct 13, 2026 for DutyCalc, Feb 19, 2026 for No Worries Sales Tax.
The short answer
- Only DutyCalc lists a free plan.
- No Worries Sales Tax lists 3 features DutyCalc’s listing doesn’t mention, including Liability calculation, Multi-currency, Threshold tracking.
Head to head
Free
- · 10 duty lookups per month
Pro
- · 1,000 duty lookups per month
Team
- · 10,000 duty lookups per month
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureDutyCalc scans your product catalog for missing HS/HTS codes and country-of-origin metadata, then calculates current US tariff exposure for ready SKUs. Review base duty, Section 301, Section 232, reciprocal tariffs, total estimated duty, AD/CVD risk, and margin impact before you reprice, reorder, or send products for broker verification.
Sales tax is simple with No Worries. We connect to your Shopify store in seconds and calculate where you owe tax. Our rooftop-accurate geocoding ensures precise tax rates—no guesswork with ZIP codes.
- Instant duty rate lookups across 35,000+ HTS tariff codes
- Full duty breakdown at checkout including base, Section 301, 232, and reciprocal
- Simple setup with HS code metafields and a usage tracking dashboard
- Automatic Nexus Detection - Get tax obligation answers quickly
- Live threshold tracking for every U.S. state
- Multi-country support - USA & AU
All the numbers
Every figure, side by side
A green dot marks the app ahead on a measured figure. Estimates, gaps and apps that leave no storefront trace never take the lead.
Adoption
| Measure |  DutyCalc |  No Worries Sales Tax |
|---|---|---|
| Detected stores | Not published | Not published |
| Net store change, 28 days | 0 | 0 |
| Stores added, 28 days | Not enough data | Not enough data |
| Big-brand share | Not enough data | Not enough data |
| Top store categories | Not published | Not published |
| Top store countries | Not published | Not published |
Reviews
| Measure | DutyCalc | No Worries Sales Tax |
|---|---|---|
| App Store rating | Not published | Not published |
| App Store reviews | Not published | Not published |
| New reviews, 28 days | Not enough data | Not enough data |
| Reviewers a year or more in | Not enough data | Not enough data |
Pricing
| Measure | DutyCalc | No Worries Sales Tax |
|---|---|---|
| Free plan | Yes | Not listed |
| Lowest paid monthly plan | $49/month | No monthly plan listed |
| Longest free trial | Not listed | Not listed |
| Plans listed | 3 | Not published |
Listing
| Measure | DutyCalc | No Worries Sales Tax |
|---|---|---|
| Shopify category rank | #198 | #162(ahead) |
| Shopify App Charts | Not on this week’s charts | Not on this week’s charts |
| Built for Shopify | No | No |
| Launched | May 19, 2026 | Jun 25, 2025 |
| Languages | 1 | 1 |
| Developer | US Tariff Rates | No Worries Sales Tax Pty Ltd |
FAQ
DutyCalc and No Worries Sales Tax: common questions
- Is DutyCalc or No Worries Sales Tax cheaper?
- Only DutyCalc lists a free plan. Shoplist compares base prices only between monthly plans in the same currency; usage charges and annual plans vary, so check each plan’s limits.
- What features does each app list that the other doesn’t?
- No Worries Sales Tax lists 3 the others don’t mention, such as Liability calculation, Multi-currency, Threshold tracking. A feature missing from a listing may still be supported; this compares what each App Store listing says.
- Where does this comparison’s data come from?
- Shoplist crawls Shopify storefronts to detect which apps each store runs, and reads each app’s Shopify App Store listing for reviews, pricing, features and integrations. Store counts are as of Oct 13, 2026 for DutyCalc, Feb 19, 2026 for No Worries Sales Tax; estimated figures are labeled.
How Shoplist compares apps
Store counts come from Shoplist’s crawl of Shopify storefronts, which detects the apps each store runs; they are as of Oct 13, 2026 for DutyCalc, Feb 19, 2026 for No Worries Sales Tax. Reviews, ratings, plans, features and integrations come from each app’s Shopify App Store listing. 28-day figures are labeled when estimated, and a figure that is missing or estimated never decides who leads. Read the methodology.