AtomicTax Sales Tax Automation vs Reven
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, Oct 14, 2026 for Reven.
The short answer
- Only Reven lists a free plan.
- AtomicTax Sales Tax Automation lists 3 features Reven’s listing doesn’t mention, including Local tax returns, Multi-state filing, Tax registration.
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
Starter
Growth
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.
This app helps merchants manage sales tax, tax filing, registration, and book closing by processing order data from Shopify. It imports orders, refunds, and related transaction details to calculate tax obligations, prepare filings, and support accurate bookkeeping. By using Shopify order data as the source of truth, the app helps merchants maintain consistent records for compliance, reporting, and period-end closing.
- 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.
- Import Shopify orders and refunds for sales tax calculations
- Generate sales tax reports and filing data from order history
- Support period-end book closing using historical Shopify orders
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 |  Reven |
|---|---|---|
| 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 | Reven |
|---|---|---|
| App Store rating | 5.0 ★ | Not published |
| App Store reviews | 2 | Not published |
| New reviews, 28 days | 0 | Not enough data |
| Reviewers a year or more in | Not enough data | Not enough data |
Pricing
| Measure | AtomicTax Sales Tax Automation | Reven |
|---|---|---|
| Free plan | Not listed | Yes |
| Lowest paid monthly plan | No monthly plan listed | $1,125/month |
| Longest free trial | Not listed | 14 days |
| Plans listed | 1 | 2 |
Listing
| Measure | AtomicTax Sales Tax Automation | Reven |
|---|---|---|
| Shopify category rank | #136(ahead) | #186 |
| Shopify App Charts | Not on this week’s charts | Not on this week’s charts |
| Built for Shopify | No | No |
| Launched | Dec 12, 2023 | Mar 6, 2026 |
| Languages | 1 | 1 |
| Developer | AtomicTax | Digital Pals |
FAQ
AtomicTax Sales Tax Automation and Reven: common questions
- Is AtomicTax Sales Tax Automation or Reven cheaper?
- Only Reven 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?
- AtomicTax Sales Tax Automation lists 3 the others don’t mention, such as Local tax returns, Multi-state filing, Tax registration. Reven lists 1 the others don’t mention, such as Rate management. 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, Oct 14, 2026 for Reven; 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, Oct 14, 2026 for Reven. 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.