MarginHalo vs Mercury
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Oct 2, 2026 for MarginHalo, Nov 8, 2026 for Mercury.
The short answer
- MarginHalo and Mercury list the same 1 features.
Head to head
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 featureMarginHalo helps Shopify Collective retailers understand their realized contribution after discounts, refunds, product expenses, supplier shipping, customer shipping and payment fees. It highlights products and orders with potential margin risks. MarginHalo is a read-only decision-support tool.
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.
- See realized contribution after key costs and discounts
- Identify margin risks across products and orders
- Flag incomplete data before it can affect your margin analysis
- 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 |  MarginHalo | |
|---|---|---|
| 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 | MarginHalo | |
|---|---|---|
| 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 | MarginHalo | |
|---|---|---|
| Free plan | Not listed | Not listed |
| Lowest paid monthly plan | No monthly plan listed | $39/month |
| Longest free trial | Not listed | 14 days |
| Plans listed | Not published | 3 |
Listing
| Measure | MarginHalo | |
|---|---|---|
| Shopify category rank | Not enough data | 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 29, 2026 | Oct 17, 2026 |
| Languages | 2 | 1 |
| Developer | TrueBuildStudio | Mercury Labs |
FAQ
MarginHalo and Mercury: common questions
- 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 2, 2026 for MarginHalo, 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 2, 2026 for MarginHalo, 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.