Fleeta DiscountFence: Codes vs Margin Defender: Block Coupons
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Sep 12, 2026 for Fleeta DiscountFence, Nov 9, 2026 for Margin Defender.
The short answer
- Margin Defender lists 1 features Fleeta DiscountFence’s listing doesn’t mention, including Tagging.
Head to head
Product Protection
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureDiscountFence adds exclusion rules to the discount codes you already built in Shopify. Codes stop applying to sale items, to products you exclude, to collections you protect, or below a margin you set, and the customer sees why. A checkout Function enforces it on every order, so the rule cannot be bypassed from a theme or a page builder. Built in the UK by Fleeta, free right now.
Ever run a 20% off Black Friday sale, only to realise a customer used it on a premium product with a 10% margin? Margin Defender is your failsafe! Margin Defender prevents you from accidentally discounting premium items that should never be on sale. Simply tag specific products as "protected," and this app will block checkout if any discount code is applied while those items are in the cart.
- Works on the discount codes you already built, with nothing to rebuild
- Fence by sale item, tag, collection, vendor, type, gift card or subscription
- Test a cart in the admin and see the exact wording checkout will show
- Exclude specific products from store-wide sales so you never sell at a loss
- Automatically block checkout if a protected item has a discount applied.
- Works seamlessly with both discount codes and automatic promotions.
- Failsafe design ensures checkout always works, even if validation times out.
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 |  Fleeta DiscountFence |  Margin Defender |
|---|---|---|
| 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 | Fleeta DiscountFence | Margin Defender |
|---|---|---|
| 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 | Fleeta DiscountFence | Margin Defender |
|---|---|---|
| Free plan | Not listed | Not listed |
| Lowest paid monthly plan | No monthly plan listed | $5.99/month |
| Longest free trial | Not listed | 7 days |
| Plans listed | Not published | 1 |
Listing
| Measure | Fleeta DiscountFence | Margin Defender |
|---|---|---|
| Shopify category rank | #269(ahead) | #757 |
| Shopify App Charts | Not on this week’s charts | Not on this week’s charts |
| Built for Shopify | No | No |
| Launched | Sep 10, 2026 | Mar 11, 2026 |
| Languages | 1 | 1 |
| Developer | Fleeta Limited | CosModo |
FAQ
Fleeta DiscountFence and Margin Defender: common questions
- What features does each app list that the other doesn’t?
- Margin Defender lists 1 the others don’t mention, such as Tagging. 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 Sep 12, 2026 for Fleeta DiscountFence, Nov 9, 2026 for Margin Defender; 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 Sep 12, 2026 for Fleeta DiscountFence, Nov 9, 2026 for Margin Defender. 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.