SellUp ‑ Upsell & Add ons , 150 reviews

I absolutely love the idea and it worked fine for the first day. I then had some issues but contacted the developers and they fixed it very quickly. The communication with them was fantastic. The app is the only one that I've found that does just what I wanted. It isn't intrusive to the design and from the day we used it our sales went up and they were proven to be as a direct result of using the app. It's amazing how quick people will click add to cart when it pops up at the checkout. Very impressed.

I had a minor issue with this app and my theme, reached the support and they responded right away. The issue was 100% solved. Thank you UpSell app, love this app!!!!

Only just started using but support very helpful and did some changes I needed quickly.

Thanks :-))

awesome app, simple to use, great support. awesome app, simple to use, great support. awesome app, simple to use, great support.

Great app. One of those apps where you get a really high level of Customer Service which makes all the difference.

Attractive looking upsells did exactly what we needed in store, and the support was able to help us configure our custom pages without any hassle.

This app is great. Easy to use and extremely effective. The support is also fantastic if you ever need it.

Best Upsell app I have used so far. It works perfectly and the support team is very fast to answer. Dan has assisted me and resolved all my questions. 5 stars!

Great attention, friendly and fast answers. Dan help us to implement the plugin in the exact way we need.

The support has been fast, polite and responsive from Dan at SellUp. There was a little integration glitch with my Shopify theme but Dan got it sorted quickly. They made some tweaks to match the style of my theme. Looks amazing. Fab app.