Cart Upsell, Free Gift Monster

In Cart Upsell, Slide Cart, Advanced Gifts >> Increase AOV

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  • Popular with businesses in the United States

Free plan available. 10-day free trial. Additional charges may apply.

App highlights

  • Seamless workflow: use directly in Shopify admin

  • Up-to-date tech: works with the latest themes

MonsterUpsells Cart Drawer


4.9 of 5 stars

The overall rating reflects the current state of the app. It accounts for all app reviews but prioritizes the most recent ones.

Counts per rating level
  • 96% of ratings are 5 stars
  • 2% of ratings are 4 stars
  • 0% of ratings are 3 stars
  • 1% of ratings are 2 stars
  • 1% of ratings are 1 stars

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1 - 10 of 276 reviews

sent studio

Location Australia

Been looking for a cart upsell for ages that would also help us unlock a free gift in an aesthetic and efficient way This app made it so much easier + support is off the charts. They solved my problem in less than 2 mins and very approachable :)

Developer reply

August 17, 2022

wohooooo!!! awwwe so happy you found us 🙏🏻🥰🙏🏻🥰🙏🏻🥰 thanks for the kind words.

Lets get you some MONNNSTER Upsellllls!!! 😊🙌🙌🙌

Artègo Hair Professional

Location Netherlands
Time spent using app About 2 months

I've started using these app because I wanted to give my customers the option to receive gifts if they reach a certain amount. It is so easy to install and the app looks so good! The service is quick and very helpfull

Developer reply

August 16, 2022

Thankyou Thankyou ... Thankyouuuu!!!! 🙏🏻🥰🥰🥰🥰 for the kind words.
Was a pleasure to chat. 😊
May the Upsell Gods be with YOU!!!! 🔥🙌🥰


Location China
Time spent using app 4 months

So stupid, the worst app. thief app. "This campaign will show up on the products you choose below. you can show it on all products or specific"
The campaign will be triggered by sitewide products, not a specified collection or product. The discount will be applied to all products, not specified collections or products.

Developer reply

August 16, 2022

As per chat desk discussion: You were using the app incorrectly. 😅 We have 1800+ stores making great upsell $$$ without a problem. The campaign chosen was a sitewide offer with trigger products.... (not built the way you wished to use it with collections) - I'm sorry if the purpose of the campaign was misunderstood.
Thanks for the feedback - we will always take it on and want to make things clearer for merchants.

To clarify: This is not a bug. It's the way the specific campaign was built.

Jolly Ties

Location United States
Time spent using app 14 days

Monster Upsell has a very good UI, both front end and back end. Team has a good sense of humor and style.

Trending Gay

Location United States
Time spent using app 5 days

This app is totally amazing! It's very rare that the owner of an app will spend so much time helping and ensuring your success. This app has taken my conversion rate from 1.5% to 3.47% overnight, also a 1 ROAS to a 4 ROAS. learned so much from Ty since installing this and also from the Free training. AMAZING!

Developer reply

August 10, 2022

WOWOWW epic stats!!! hahaha
Gret chatting to you mate.
Let's get you some EPIC upsells!!!! 🔥🤘🏻


Location United States
Time spent using app About 5 hours

This is a great, easy-to-use app with great support. It will help you gain a bit more money with customers at the checkout. Almost like cookies at the counter at McDonald's. Nice little upsells here and there. I highly recommend it. Thanks Raneen for your assistance with my small issue as well.

Ratchet Decals

Location United States
Time spent using app 4 days

Beautiful app! You're able to customize your cart exactly how you want and upsell like crazy! The developers and support is absolutely amazing as well. I needed help fixing something and they helped right away. Definitely recommend installing this app ASAP!


Location Australia
Time spent using app 11 months

Have a bunch of our business using Monster. Awesome app for upsells campaigns. So many options and integrates almost seamlessly to Shopify. Best support in the game.

Developer reply

August 8, 2022

As alwaysssss... you guys are legends!!!! Thanks heaps for the support 🙌🥰

Lets Smash them upselllllllssss - may the upsell Gods be with you!


Location United States
Time spent using app 27 days

Great app, even better support. Any problem you have they'll help you set up til you get it smoothly.


Location Australia
Time spent using app About 1 hour

Just started using this app and the support has been amazing so far. Ty went above and beyond in helping me do a basic task. He ended up staying pass 12am just to show me some additional features and potential. I am looking forward to signing up.

Developer reply

August 4, 2022

haha Pleasure chatting to you mate 🥰

Lets get you some epic upsells!!!!!

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