Margin Watchdog vs Defyn Profit Guard
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Nov 11, 2026 for Margin Watchdog, Oct 13, 2026 for Defyn Profit Guard.
The short answer
- Both list a free plan. Paid plans start at $19/month for Margin Watchdog and $9/month for Defyn Profit Guard.
Head to head
Free
- · 50 Monitored Orders Per Month
- · Email Alerts
- · The Daily Digest
Pro
- · Email & Slack Alerts
- · The Daily Digest
- · Unlimited Orders
Free
Pro
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureMargin Watchdog checks every order the moment it arrives. It calculates the real margin after stacked discounts, shipping and payment fees, then tags the order LOSS or LOW_MARGIN when it falls below the floor you set. You get an instant email and Slack alert, and one daily digest at 08:00 in your store's time zone.
Profit Guard calculates true net profit on every Shopify order the moment it arrives. Configure your payment processing rate, shipping rate, and COGS ratio once. Profit Guard handles the rest. Orders below your profit threshold are automatically flagged and tagged in your Shopify admin so you can act immediately. The standard tier uses COGS ratio estimation.
- Real-time margin on every order, after stacked discounts and fees
- Automatic LOSS and LOW_MARGIN tags on at-risk orders
- Instant email and Slack alerts the moment an order slips
- Daily 08:00 digest in your store's time zone
- Real-time profit calculation on every Shopify order
- Automatic flagging and tagging of unprofitable orders
- True COGS from Shopify inventory for per-variant accuracy
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 |  Defyn Profit Guard | |
|---|---|---|
| Detected stores | Not published | Not published |
| Net store change, 28 days | Not enough data | 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 | Defyn Profit Guard | |
|---|---|---|
| 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 | Defyn Profit Guard | |
|---|---|---|
| Free plan | Yes | Yes |
| Lowest paid monthly plan | $19/month | $9/month(ahead) |
| Longest free trial | 7 days | 7 days |
| Plans listed | 2 | 2 |
Listing
| Measure | Defyn Profit Guard | |
|---|---|---|
| Shopify category rank | Not enough data | #69 |
| Shopify App Charts | Not on this week’s charts | Not on this week’s charts |
| Built for Shopify | No | No |
| Launched | Nov 11, 2026 | May 26, 2026 |
| Languages | 1 | 1 |
| Developer | SametDev | Defyn |
FAQ
Margin Watchdog and Defyn Profit Guard: common questions
- Is Margin Watchdog or Defyn Profit Guard cheaper?
- Both list a free plan. Paid plans start at $19/month for Margin Watchdog and $9/month for Defyn Profit Guard. Shoplist compares base prices only between monthly plans in the same currency; usage charges and annual plans vary, so check each plan’s limits.
- 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 11, 2026 for Margin Watchdog, Oct 13, 2026 for Defyn Profit Guard; 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 11, 2026 for Margin Watchdog, Oct 13, 2026 for Defyn Profit Guard. 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.