Plus Checkout Upsell+Free Gift

Great App and the customer support is by far the best we've ever had with any app integration. Thanks Jaap!

Excellent checkout integration. Simple UI. Amazing sets of options & rules. Incredibly responsive support. A++ as far as apps go.

Thank you dear Jaap and all Upsell Plus team for a great support.
Jaap was available all the time to support and handle some slight issues that came by. Also they made some app changes a specially for us.

Best app for checkout upsells! Wow, and the support is great as well. It's converting at 8% so far in a few weeks of use. Improvements are happening often as well. The app creator understands upselling.

I am very happy with the app:
* First of all, fantastic 24/7 support from Jaap and the team.
* Great overall coverage of upsell cases - from the cart to the checkout
* Intuitive admin UI

Highly recommend.

Really easy to use and great support from their team to set it up! The best checkout upsell app I could find.

amazing customer service, super reactive, I totally recommend this app. And easy to set up compare to other apps

Jaap and his team have THE MOST responsive support that I've experience anywhere on the app store. UpsellPlus is easy to set up but don't let that fool you -- it is a powerful and complete upsell solution. Highly recommend.

We stumbled upon a fantastic app with excellent customer support. It's impressive how Jaap, the founder, shows genuine care for his customers, offering quick responses and eagerly meeting their requirements. The app is incredibly straightforward and reliable in its functionality. Without a doubt, it earns a five-star rating and comes with my strong recommendation.

Incredible support! Wow! They helped us translate the app to show it in both French and English!! Amazing support with custom stuff!