Reviews (494)

Overall rating
4.6
Counts per rating level
  • 91% of ratings are 5 stars
  • 3% of ratings are 4 stars
  • 1% of ratings are 3 stars
  • 1% of ratings are 2 stars
  • 3% of ratings are 1 stars
What merchants think

Feedback submitted

Merchants highly recommend this app for boosting average order value and revenue with minimal effort. It integrates seamlessly with Shopify, offering extensive customization options that enhance the checkout experience. The app is easy to set up and use, featuring upselling and free gifts. Exceptional customer support is frequently praised for being responsive and helpful, even on weekends, aiding with integration and customization issues.

September 4, 2025

We've used Monster Cart Upsell for several years now and it works well. Their customer support is also very quick to respond. Their live chat isn't always available, but if you start a chat they will email you back pretty quick. I've also given them access to my online store several times and they're able to fix issues for me. 5/5 stars!

Janela Bay
United States
Over 2 years using the app
November 17, 2025

So far the customer service has been great all my little teething issues have been sorted and now excited to see this app bring in the sales :) so happy i found an app to help! thanks guys

WORDOFGOD APPAREL
Australia
14 days using the app
October 10, 2025

Having some tech issues and Charlene noticed some other issues which she is getting fixed asap. Great App, great support!

SOJA Fragrances
Australia
About 1 year using the app
September 4, 2025

Great customer service and customizations on various cart types. I've been really happy with the adaptability of the carts/offers and have been able to easily tie the aesthetic in to match my store and product. Encountered some issues integrating with other high-level apps in store, but with the devs help we have been able to navigate through that as well. Thanks Monster Cart team :)

Middle Child
Australia
11 months using the app
December 1, 2025

Great experience with the support team. Highly recommend this plugin for any Shopify store trying to experiment with different discount structures.

Review Mate
New Zealand
3 days using the app
October 14, 2025

Excellent Support and Quick Response!
I had a great experience with the Monster Upsells team. Their support is excellent and super quick! A special thanks to Charlene, who was very helpful, friendly, and responsive throughout the process. She made everything so smooth and easy. Highly recommend this app and their amazing support team!

Wagging Tails
India
6 months using the app
December 4, 2025

They charege based on ALL your orders in your store - doesent matter if the conversations are made throughou their app.

Karanyi Sounds
Hungary
8 months using the app
September 26, 2025

Wow! The customer service is impeccable! I’m a newbie and the app is so easy and user friendly. I was stuck on one bit and spoke to Charlene who fixed it immediately. We are so happy with supporting them.

Ooh La La Nails Supply
Australia
6 days using the app
September 2, 2025

Solid app, great customer support. I found and reported a bug which the team promptly fixed within 48 hours.

Harmacy Hot Sauce Co.
United States
6 months using the app
October 23, 2025

The support team was so awesome and solved the cart issue super quick! thank you so much! Highly recommend Monster Cart Upsell!

La Creative Mama
New Zealand
6 days using the app