MarginNerve vs Mercury
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 MarginNerve, Nov 8, 2026 for Mercury.
The short answer
- Paid plans start at $29/month for MarginNerve and $39/month for Mercury.
- MarginNerve lists 2 features Mercury’s listing doesn’t mention, including Data export, Historical analysis.
Head to head
Starter
- · 3 alert rules
- · 30-day history
- · 5 cost rules
- · 500 orders per month
- · Daily data refresh
Growth
- · 20 alert rules
- · 30 cost rules
- · 5,000 orders per month
- · 90-day history
- · CSV export
- · Refresh every 6 hours
Pro
- · 100 alert rules
- · 150 cost rules
- · 25,000 orders per month
- · 365-day history
- · CSV export
- · Hourly data refresh
Starter
- · In-app risk alerts
- · Promotion Health dashboard
- · Stacked-discount detection
- · Up to 1,000 orders / 30 days
Growth
- · In-app risk alerts
- · Promotion Health dashboard
- · Stacked-discount detection
- · Up to 5,000 orders / 30 days
Scale
- · In-app risk alerts
- · Promotion Health dashboard
- · Stacked-discount detection
- · Up to 20,000 orders / 30 days
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureMarginNerve turns Shopify order, product expense, payment transaction, and refund data into contribution-profit signals. Add operating expenses Shopify does not track, including packaging and fulfillment, then review estimated profit by order and product. Risk Radar prioritizes refund, discount, and missing-data issues, while confidence indicators show where source data is incomplete.
Mercury is a read-only promotion monitoring app that helps merchants understand how discounts affect orders. It highlights stacked discounts, discount exposure, risky promotion settings, and estimated potential leakage. Review promotion health, inspect affected orders in the Leakage Ledger, monitor promotion changes, and see alerts in one place.
- Calculate contribution profit from sales, refunds and operating expenses
- Prioritize refund, discount and missing-data risks in Risk Radar
- Compare product profitability across 30-, 90- and 365-day windows
- See confidence scores when expenses or source data are incomplete
- See discount exposure, stacked discounts, and estimated potential leakage
- Review risky promotion settings such as no usage cap or no end date
- Inspect affected orders and discount combinations in the Leakage Ledger
- Get in-app alerts when monitored promotion settings become risky
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 |  MarginNerve | |
|---|---|---|
| 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 | MarginNerve | |
|---|---|---|
| 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 | MarginNerve | |
|---|---|---|
| Free plan | Not listed | Not listed |
| Lowest paid monthly plan | $29/month(ahead) | $39/month |
| Longest free trial | 3 days | 14 days |
| Plans listed | 3 | 3 |
Listing
| Measure | MarginNerve | |
|---|---|---|
| Shopify category rank | #181 | Not enough data |
| Shopify App Charts | Not on this week’s charts | Not on this week’s charts |
| Built for Shopify | No | No |
| Launched | Sep 17, 2026 | Oct 17, 2026 |
| Languages | 1 | 1 |
| Developer | MarginNerve | Mercury Labs |
FAQ
MarginNerve and Mercury: common questions
- Is MarginNerve or Mercury cheaper?
- Paid plans start at $29/month for MarginNerve and $39/month for Mercury. 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?
- MarginNerve lists 2 the others don’t mention, such as Data export, Historical analysis. 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 MarginNerve, Nov 8, 2026 for Mercury; 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 MarginNerve, Nov 8, 2026 for Mercury. 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.