Very good app and excellent support. They were able to solve all my problems quickly and according to my wishes. Special thanks go to Lulla and Mia. I highly recommend this app.

Perfect App. There are so many things to chose. I love it. The support helps emmidiatly too. 5 Stars with love

Super flexible, they built me a custom pop up for my cart without any hesitancy, Vivian and lilla responded super quickly to my messages, and all customizations were done in under 2 hours If you want flexibility, opus is your go to

Must have app for everyone who uses cart drawer option. Highly customizable, but still very friendly to use. I needed assistance for a specific question, and LULLA helped me instantly. Recommend 100%!

It is a great app. The cart drawer actually looks nice and you can customize it as much as you want. The customer service is really helpful, especially LULLA & VIVIAN & dev MIA. I had a great experience with them so far.

The app itself works smooth, it provides a great overall experience. Also I want to mention Lulla and Mia, they did an amazing job helping me set everything up. Super professional, quick, and clear. Really appreciated the assistance! Would recommend.

Perfect App, perfect for every person love a good shopping expirience! Vivian's support is incredible!! So fast and friendly! Only can say WOW

très bonne alternative gratuite ! Le panier fonctionne nickel, le support est très réactif. 5/5

The App does excatly what it should and you can customize everything! The support team was very quick to help with some smallere CSS questions and was very quick to respond - all done in a matter of minutes! thank you Katie and Ryan!

I’ve had an amazing experience with Opus and especially with their support team. Vivian went above and beyond to help us with a very specific use case involving hidden rewards and multiple free gift tiers. She was not only knowledgeable and responsive, but also incredibly patient and solution-oriented. Thanks to her guidance, we were able to implement a custom setup that fits our marketing vision perfectly. If you’re looking for a flexible cart and rewards system backed by a great support team, I highly recommend Opus. And if you get the chance to work with Vivian — you’re in great hands!

I just downloaded the app and I couldn't be happier. It's useful for any level I'm at, whether testing or more advanced. Plus, Lulla from support is helping me at all times as if she were right there by my side. I feel very grateful.

I want to leave a huge thank you to Lulla and our dev Mia! They helped me at every moment from the very beginning, quickly solved all the issues and questions I had with my store and theme, and didn’t spare any effort to provide me with fast and efficient support. The app itself is incredible! it gave me everything I was looking for, and with their help, my cart is now exactly how I wanted it! I’m really impressed and highly recommend both the app and their amazing team.

Outstanding support from Katie and Lulla! They helped resolve several issues and even took care of some personal customization requests I had. Hands down the best cart app I’ve used!

I've experiemented with a few cross sell apps and this is by far the most feature rich. I had a couple of changes that I needed and Lulla and the support team were very responsive and friendly.

The app works well, performs as expected given that I am on the free plan, there are a good amount of things that are available for stores like mine despite only being on the free version, so I am happy about that. They also have a great support team, I wanted to change something specific, asked them for help to which Katie and Ryan quickly helped me sort out exactly what I wanted. Props to them!

I've been using OPUS since it was a startup, and I can confidently say it’s the best cart app I’ve ever worked with. Over the months, as my business grew and my needs evolved, OPUS kept improving right alongside me. I haven't found another cart app that comes close to meeting my store’s specific requirements — and believe me, I’ve tried a few. What truly sets OPUS apart is not just the functionality, but the incredible support team behind it. A special shoutout to Katie, David, and Lulla — they’re always available, providing prompt, helpful feedback, and going above and beyond to assist whenever needed. Since my store sells personalized products, setting up and optimizing the cart required extra attention and customization. The OPUS team handled this flawlessly, tailoring solutions that worked perfectly for my unique setup. If you’re on the fence about which cart app to choose for your Shopify store, don’t hesitate — go with OPUS. It’s powerful, reliable, and backed by a team that genuinely cares about your success. I simply love it!

Banger App. It has really everything you need from custom css to even custom skript where you can hire a dev team to get that done. Lulla helped me out of the trenches real moggerina she does a great job

Amaazing very fast support from LULLA and David, within minutes we had a fix and solution - great app!!

Really love this app! Super easy to set up upsells and bundles, took me like 10 minutes. The pop-ups look clean and fit well with my store, and I can see exactly how much extra sales they bring in. It helped me increase my average order value without slowing down my checkout. Support is also quick and helpful whenever I need something. Highly recommend if you want to get more out of your Shopify store without any complicated setup!

Great app! One of the best support teams. They solved me a little issue with codding within seconds. The upsell cart is one of the smoothest in this category.