CostSentry: Margin Alerts vs MarginGuard ‑ Tariff Alerts
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Oct 14, 2026 for CostSentry, Oct 13, 2026 for MarginGuard.
The short answer
- Only CostSentry lists a free plan. Paid plans start at $19/month for CostSentry and $29/month for MarginGuard.
- CostSentry lists 4 features MarginGuard’s listing doesn’t mention, including Bulk editing, Price history, Price tracking.
Head to head
Free
- · 1 supplier
- · 1,000 SKUs under watch
- · Weekly email digest
Starter
- · 10,000 SKUs under watch
- · 2 suppliers
- · Instant and daily alerts
- · One-click cost write-back
Pro
- · 100,000 SKUs under watch
- · 5 suppliers
- · Everything in Starter
Enterprise
- · 1,000,000 SKUs under watch
- · Everything in Pro
- · Unlimited suppliers
Starter
Growth
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureShopify keeps one cost per item, with no history and no supplier link. When a supplier raises prices, the field goes stale and profit reports drift. CostSentry tracks supplier price lists in your admin. Upload a CSV or XLSX file: rows match your catalog by SKU or brand and part number, get compared with the previous list, and every change shows its margin impact at current retail.
Tariffs and duty rates change without warning, and the morning they do, some products quietly sell below your target margin. MarginGuard watches US and EU duty schedules (USITC HTS, Section 301/232/122, EU TARIC) and resolves the real import duty on each SKU from its HS code, origin, and unit cost. When a rate change pushes a product under your margin, you get the affected SKUs and the exact price to recover.
- Import supplier price lists from CSV or XLSX with saved column mapping
- See every cost change with margin impact at your current retail prices
- Flag SKUs below your margin floor with a suggested new retail price
- Update cost per item in Shopify in one click, per SKU or in bulk
- Resolves each SKU's true duty: USITC HTS base plus Section 301, 232, and 122
- Flags any product whose margin falls below your target after a rate change
- Hands you the exact price to charge to restore your target margin per SKU
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 |  CostSentry |  MarginGuard |
|---|---|---|
| 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 | CostSentry | MarginGuard |
|---|---|---|
| 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 | CostSentry | MarginGuard |
|---|---|---|
| Free plan | Yes | Not listed |
| Lowest paid monthly plan | $19/month(ahead) | $29/month |
| Longest free trial | 14 days | 7 days |
| Plans listed | 4 | 2 |
Listing
| Measure | CostSentry | MarginGuard |
|---|---|---|
| Shopify category rank | #365(ahead) | #366 |
| Shopify App Charts | Not on this week’s charts | Not on this week’s charts |
| Built for Shopify | No | No |
| Launched | Aug 19, 2026 | Jun 25, 2026 |
| Languages | 1 | 1 |
| Developer | StoreSentry | MarginGuard |
FAQ
CostSentry and MarginGuard: common questions
- Is CostSentry or MarginGuard cheaper?
- Only CostSentry lists a free plan. Paid plans start at $19/month for CostSentry and $29/month for MarginGuard. 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?
- CostSentry lists 4 the others don’t mention, such as Bulk editing, Price history, Price tracking, Pricing rules. 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 14, 2026 for CostSentry, Oct 13, 2026 for MarginGuard; 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 14, 2026 for CostSentry, Oct 13, 2026 for MarginGuard. 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.