Upcharge Surcharge Fee Tariff

Upcharge Surcharge Fee Tariff

Reviews (198)

Overall rating
4.7
Counts per rating level
  • 83% of ratings are 5 stars
  • 4% of ratings are 4 stars
  • 3% of ratings are 3 stars
  • 4% of ratings are 2 stars
  • 8% of ratings are 1 stars
What merchants think

Feedback submitted

Merchants say this app is great for adding flexible surcharges and fees at checkout, like rush service, packaging, shipping insurance, local taxes, deposits, and complex tariffs or import duties. They find setup easy, the interface intuitive, and fees reliably applied by product, cart, or destination. Many highlight fast, knowledgeable support that helps with custom code, advanced configurations, and theme-related fixes, making it a long-term solution.

July 7, 2026

Reached out to app support for help with some technical issues we were having with the app. Javid was very helpful and we were able to get all issues sorted promptly.

Fire and Safety Centre
United Kingdom
Over 5 years using the app
UC Lab LLC replied July 8, 2026

Thank you for the great feedback! We're thrilled to hear that everything is now running smoothly for your store. Our entire team is always here to help whenever you need us

July 6, 2026

Javid was very helpful and attentive.

Lone Star Adhesive
United States
Over 2 years using the app
UC Lab LLC replied July 8, 2026

Thank you so much! We love hearing that you had a great experience. Our entire team works hard to keep our support fast and attentive, so knowing we hit the mark for you means the world to us.

July 4, 2026

Fast and detailed attention. Until now all my doubts have been answered and helped without any problem

Koreabe
Hong Kong SAR
12 days using the app
UC Lab LLC replied July 8, 2026

Thank you so much for the kind words. We're always here whenever you need us!

July 3, 2026

Brilliant app that I've started using to add import fees and customs for international orders. Customer support is fantastic, very responsive and extremely helpful. Couldn't recommend enough!

Clever Soap
United Kingdom
About 19 hours using the app
UC Lab LLC replied July 8, 2026

Thank you so much for the brilliant review! We're thrilled to hear that the app is making international shipping easier for you. Our team is always here whenever you need us. Wishing you great sales!

July 1, 2026

amazing support, quick responses and great communication throughout the process; delivers according to requirements

sydmarfoods
Australia
4 months using the app
UC Lab LLC replied July 2, 2026

Thank you so much for your kind feedback! 😊
We’re really happy to hear that you had a great experience with our support, communication, and overall process.

October 19, 2026

Does what I needed and great support!

3DNA Dental
United States
5 months using the app
UC Lab LLC replied October 20, 2026

Thank you for your kind review! 😊 We're glad the app meets your needs and that you had a great experience with our support team. We truly appreciate your feedback!

October 15, 2026

Excellent support by Zia

OnePhone Singapore
Singapore
Over 4 years using the app
UC Lab LLC replied October 16, 2026

Thank you so much for your kind words! 😊 I'm glad I could help. We truly appreciate your support and are always here if you need anything else!

September 30, 2026

Javid from Shopify support has been so helpful — he helped fix the issues with our store and was great to work with throughout. Thank you so much!

— Hasan

Aviation Retail Direct
United Kingdom
10 months using the app
UC Lab LLC replied October 1, 2026

Thank you so much for the kind words and the 5-star review! It was a pleasure working with you to get everything running smoothly on your store. Wishing you great success with your shop, and feel free to reach out anytime if you need further help

May 23, 2026

The app worked for approximately 30 days, but then started glitching and stopped working. Support - which was initially very helpful - wasn't able to resolve in a timely manner. We lost hundreds of dollars in non-applied taxes and had to find an alternative immediately.

Candycopia
United States
About 2 months using the app
UC Lab LLC replied May 27, 2026

We are sincerely sorry for the frustration and financial loss this caused your business. We take full responsibility for letting you down.

I have just sent a direct email to your inbox with a personal apology and a compensation proposal to make things right. Please check your inbox so we can resolve this together.

June 25, 2026

Great customer service. Been using them for years. Very happy!

chidorivintage.com
Japan
8 months using the app
UC Lab LLC replied June 26, 2026

We’re truly happy to hear that you’ve had a great experience with our customer service and the app. Your trust and long-term support mean a lot to us.

If you ever need any assistance, we’re always here to help!