Mercury vs PromoMate
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Nov 8, 2026 for Mercury, Oct 29, 2026 for PromoMate.
The short answer
- PromoMate lists 1 features Mercury’s listing doesn’t mention, including Profit insights.
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
Free to start
- · Before, during and after results
- · Free assessment of your sales
- · No subscription
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureMercury 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.
PromoMate reads your Shopify orders to help you judge a sale before, during and after it runs. Before: it estimates how much extra sales your discount needs to break even, from your own trading history. During: it watches the sale's pace against that target. After: it reports what the sale did, updating as refunds and later orders settle, and carries what it learned into your next sale.
- 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
- See what your discount needs to earn before the sale starts
- Watch the sale's pace against that target while it runs
- Get an honest result afterwards, updated as refunds settle
- Carry what each sale taught you into the next one
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 | ||
|---|---|---|
| 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 | ||
|---|---|---|
| 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 |
FAQ
Mercury and PromoMate: common questions
- What features does each app list that the other doesn’t?
- PromoMate lists 1 the others don’t mention, such as Profit insights. 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 Nov 8, 2026 for Mercury, Oct 29, 2026 for PromoMate; 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 Nov 8, 2026 for Mercury, Oct 29, 2026 for PromoMate. 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.