Opus Cart Upsell Cart Drawer

Lulla and developer KHANG are so helpful. They understood all I need and helped me hiding the quantity selector. I will always recommend this app. This increases my conversion rate. Everyone should try it.

I recently experienced an issue where discounts were not showing correctly in the cart when adding bulk products from my custom-built page. Even though it happened right before Black Friday — one of the busiest times of the year — the Opus Cart support team responded incredibly fast and resolved the problem quickly.

I’m genuinely impressed with their efficiency, professionalism, and willingness to help, even under pressure.

Excellent support — highly recommended!

Vivian from Opus Cart Upsell has been absolutely amazing! She went above and beyond to help me set up and customize the app to fit my store perfectly. Her responses were fast, clear, and super friendly — she made the whole process smooth and stress-free.

The app itself works great and has already improved our upsell conversions, but what really stands out is the quality of support. Having someone as attentive and knowledgeable as Vivian makes a huge difference. Highly recommend both the app and the team behind it!

Amazing support and functionality! Lulla and Khang went above and beyond. The app design is sleek and has great customization. Would definitely recommend!

Amazing App & Excellent Support!
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This app has been a great addition to my store — it’s easy to use and really helps improve my workflow. The support team is outstanding — they respond quickly and go above and beyond to help with any questions or setup issues. I highly recommend this app to anyone looking for reliable features and top-notch customer service!

Nice app, easy to use and stable. The cart experience is much better after installing Cart Opus. Support is also great, quick reply and helpful answers. You can tell they care about the users. Would recommend.

Application Parfaite et service client très réactif ! J’avais une idée précise de la barre dans le panier et ils ont réalisé exactement ce que je voulais en un temps record !
Ça marche parfaitement et ça a augmenté mes ventes de façon spectaculaire ! Merci

I noticed fewer abandoned carts after switching to this drawer. Customers can see all their items clearly, adjust quantities, and add recommended products without leaving the page. It creates a smoother flow.

Eine hervorragende App für den Warenkorb! Sie bietet wirklich alle Funktionen, die man braucht, um den Checkout zu optimieren und den Umsatz zu steigern. Besonders hervorzuheben ist der Support: Das Team ist extrem fleißig, reagiert schnell und ist sehr hilfsbereit. Absolute Empfehlung!

Very responsive and professional team! They quickly implemented my suggestion, and the new feature works perfectly on my website. I really appreciate their efficiency and dedication highly recommend!