KeepCart: Stop Coupon Leaks
Stop Coupon Leaks with Extension Blocking, Alerts, and more!
Rating
5.0
feedback
65
chart
#3,908
All reviews
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March 23, 2026
KeepCart has been a great addition to our stack. It helped us quickly detect coupon leaks and prevent unwanted discounts, especially from browser extensions, directly improving our margins. Simple to use and genuinely effective.
March 22, 2026
We run a fitness brand (Shogun Sports) with a high AOV, and coupon leaks were quietly eating into our margins without us fully realizing it. We thought we had a solid affiliate program, but KeepCart revealed that a significant chunk of "affiliate commissions" we were paying out were actually from leaked coupons being used by random shoppers, not real affiliates driving traffic. Since installing, we've blocked the abuse and our bottom line has improved noticeably. Revenue hasn't dropped, if anything, we now know which commissions are legitimate and which weren't. For stores with high AOV or an active affiliate/discount strategy, this app essentially pays for itself.
March 21, 2026
Great app — solved our coupon code leak issues almost instantly. Setup was quick, and it works seamlessly without affecting site performance. We now have full control over discounts and clear visibility into how codes are used. It’s already paid for itself by preventing unnecessary discounting. Support is also fast and helpful. Highly recommend
March 20, 2026
We were losing more revenue to coupon abuse than we realized. KeepCart made it super easy to lock that down, and setup took maybe 10 minutes. It just runs quietly in the background doing its job. We've already seen the payoff. Honestly wish we'd installed it sooner.
March 3, 2026
We set up KeepCart after discovering continual discount code abuse, primarily originating from couponing/referral sites. The onboarding process couldn't have been easier (took maybe 10 minutes total). It's been a game-changer in recognizing old codes that were still being used by customers and shutting those respective discounts down. We're very happy with it so far and will continue to use it in the future to preserve margins.
Feb. 19, 2026
KeepCart has been great for my brands. As a marketing agency managing multiple Shopify stores, protecting promo strategy and margins is a top priority. KeepCart gives us visibility into coupon misuse, blocks unauthorized extensions, and helps ensure our campaigns perform the way they’re intended to. It’s easy to implement, straightforward to manage, and adds an extra layer of security we didn’t realize we were missing. Highly recommend for any brand serious about protecting their revenue and discount strategy.
Feb. 17, 2026
The app works well. I haven't had a good understanding whether or not it attributes to an increase in revenue by blocking out code injection sites, but time will tell.
Feb. 4, 2026
Great app that's really helping improve our margins. Coupon code leaks are such a pain and require a lot of manual effort to combat - normally. KeepCart has automated the process, reducing the amount of excess discounts we give out improving our profitability. The analytics it provides on usage really boosts confidence in it working well. Great app that is as simple as turning on and making more money, providing an excellent ROI on the app.
Feb. 3, 2026
We’ve had a great experience using KeepCart. It has been a key tool for us in protecting our checkout from unintended discounts and coupon misuse, especially from extensions and affiliate-related leaks. Before using KeepCart, we didn’t have clear visibility into how and where our discount codes were being shared. Now we have much better control and insight, and we’ve been able to reduce unnecessary discounting while keeping our campaigns structured and intentional. The app runs smoothly, is easy to manage, and the impact on our bottom line was noticeable quite quickly. On top of that, their team has been responsive and helpful whenever we’ve needed support. If you’re serious about safeguarding your margins and getting full transparency around your coupon performance, KeepCart is absolutely worth having in your tech stack. Highly recommended.
Jan. 27, 2026
If you are tired of seeing your profit margins eroded by coupon extensions like Honey, Capital One Shopping, and Rakuten, KeepCart is an absolute game-changer. Before installing this app, we struggled with discount codes—intended only for specific influencers or email segments—leaking onto the web and being auto-applied at checkout. KeepCart solved this immediately. It effectively blocks over 150 different coupon extensions and even alerts us if a code has been leaked to a third-party site so we can take action. The dashboard is incredibly clean and provides great insights into how many 'leaks' are being prevented in real-time. It’s also been fantastic for stopping affiliate and reseller abuse by preventing duplicate account fraud. The setup was quick and easy. If you’re serious about protecting your brand’s value and keeping your margins intact, this app is a must-have!
Jan. 19, 2026
If you’re serious about protecting your checkout from unintended discounts and want clear visibility into how your codes are performing, KeepCart is absolutely worth adding to your tech stack. Highly recommended!
Dec. 15, 2025
We were able to quickly spot coupon codes that had leaked to extensions and deal sites and shut them down before they caused more damage. It gave us visibility we didn’t have before and made it much easier to protect our checkout and margins. Simple to use and genuinely useful.
Dec. 4, 2025
Great tool to help keep tabs on discount codes being used, see if anything has been leaked, and generally monitor discounts. The app dashboard is also very clear and easy to understand.
Dec. 3, 2025
KeepCart has been great in helping us monitor and prevent code leaks. It’s already identified several incidents early on, and we’re exploring code blocking to take our protection even further. The team’s responsiveness and support have made implementation seamless and efficient.
Dec. 3, 2025
We run Planet Mujo, a pain relief brand where margins matter, and KeepCart has instantly become one of the most important apps on our Shopify store. Our main reason for installing it was to stop coupon extensions like Honey and Capital One Shopping from scraping and auto-applying discount codes we never intended to be public. KeepCart blocks these extensions perfectly. Before this app, we were constantly fighting margin leakage from leaked codes, unauthorized discounts, and customers stacking promos. Now, problem solved. Setup took only a few minutes, and everything worked right out of the box. No theme conflicts, no site slowdown, no complicated configurations. Their support team is also excellent, fast responses and incredibly helpful. If you're tired of coupon extensions eating into your margins, KeepCart is the fix. Simple, effective, and absolutely worth it. Highly recommended by the Planet Mujo team.
Dec. 2, 2025
If for no other reason than being able to track codes out in the wild / leaked and get updates on those, you should consider this app. It's a great tool to fight back against all of the code injection sites, especially if you work with influencers, etc and want better directional data on actual code efficacy there.
Nov. 24, 2025
Extremely helpful insights into how our customers are finding and using discount codes.