AtomicTax Sales Tax Automation vs Kintsugi Sales Tax Automation
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 AtomicTax Sales Tax Automation, Nov 3, 2026 for Kintsugi Sales Tax Automation.
The short answer
- On the Shopify App Store: AtomicTax Sales Tax Automation 5.0 from 2 reviews and Kintsugi Sales Tax Automation 4.8 from 36 reviews.
- AtomicTax Sales Tax Automation lists 3 features Kintsugi Sales Tax Automation’s listing doesn’t mention, including Data export, Local tax returns, US (Sales tax).
Head to head
Momentum
New reviews each month
Review pace is the clearest public read on how fast an app is winning new merchants.
Sales Tax Filing
Free
- · Address validation
- · Automated risk assessment
- · Easy CSV transaction imports
- · Exposure/historical liabilities auditing
- · Free nexus monitoring: physical/economic
- · New nexus alerts
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureAtomicTax helps Shopify merchants manage sales tax compliance after orders are placed. The app uses Shopify order data to support economic nexus monitoring, state registration requests, and sales tax filing preparation. Merchants review their data before any registration or filing is submitted. AtomicTax does not replace checkout tax calculation; it focuses on post-sale compliance workflows and filing records.
Kintsugi uses AI to handle sales tax end-to-end, including automatic filing, registration, and physical mail handling. Our app connects to your store in minutes, tracks nexus in US and global jurisdictions, applies rooftop-accurate rates, and auto-files returns on schedule. Real-time dashboards expose liability down to each transaction, slashing audit risk and manual busywork.
- Sales Tax reporting dashboard with real time tax obligation calculation.
- We help your business automate sales tax filing for all US states.
- Economic nexus monitoring for your nexus compliance across all states.
- We help with state registration and obtaining your sales tax ID for each state.
- Nexus determination and tax liability calculation
- Registrations and filing
- 24*7 instant support
- Exemption management
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 |  AtomicTax Sales Tax Automation |  Kintsugi Sales Tax Automation |
|---|---|---|
| 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 | AtomicTax Sales Tax Automation | Kintsugi Sales Tax Automation |
|---|---|---|
| App Store rating | 5.0 ★(ahead) | 4.8 ★ |
| App Store reviews | 2 | 36(ahead) |
| New reviews, 28 days | 0 | 1(ahead) |
| Reviewers a year or more in | Not enough data | Not enough data |
Pricing
| Measure | AtomicTax Sales Tax Automation | Kintsugi Sales Tax Automation |
|---|---|---|
| Free plan | Not listed | Not listed |
| Lowest paid monthly plan | No monthly plan listed | No monthly plan listed |
| Longest free trial | Not listed | Not listed |
| Plans listed | 1 | 1 |
Listing
| Measure | AtomicTax Sales Tax Automation | Kintsugi Sales Tax Automation |
|---|---|---|
| Shopify category rank | #136 | #14(ahead) |
| Shopify App Charts | Not on this week’s charts | Not on this week’s charts |
| Built for Shopify | No | No |
| Launched | Dec 12, 2023 | Aug 17, 2023 |
| Languages | 1 | 1 |
| Developer | AtomicTax | Kintsugi |
FAQ
AtomicTax Sales Tax Automation and Kintsugi Sales Tax Automation: common questions
- Which has better reviews, AtomicTax Sales Tax Automation or Kintsugi Sales Tax Automation?
- On the Shopify App Store: AtomicTax Sales Tax Automation 5.0 from 2 reviews and Kintsugi Sales Tax Automation 4.8 from 36 reviews.
- What features does each app list that the other doesn’t?
- AtomicTax Sales Tax Automation lists 3 the others don’t mention, such as Data export, Local tax returns, US (Sales tax). Kintsugi Sales Tax Automation lists 1 the others don’t mention, such as Liability calculation. 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 AtomicTax Sales Tax Automation, Nov 3, 2026 for Kintsugi Sales Tax Automation; 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 AtomicTax Sales Tax Automation, Nov 3, 2026 for Kintsugi Sales Tax Automation. 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.