Upcharge Surcharge Fee Tariff

The reviews are overwhelmingly positive, with most merchants praising the app’s core functionality and especially its customer support. Users repeatedly mention that the app does what they need it to do, whether that is adding fees, handling tariffs, surcharges, shipping insurance, add-ons, or other checkout-related charges. Many reviewers also highlight that setup is simple, the app integrates well, and the team responds quickly, explains issues clearly, and often resolves problems in a very short time. Several names from support are mentioned directly, showing that merchants value the personal, responsive, and knowledgeable help they receive. The negative feedback is limited but important. A few users report bugs, glitches, or issues after updates, and some say the app stopped working or did not apply fees correctly, which in one case caused lost revenue. There are also concerns about fit and limitations, such as the app not being suitable for non-Shopify Plus stores in certain tariff scenarios, and one reviewer felt the app increased product prices unexpectedly. Overall, the sentiment is strongly favorable, but the negative reviews suggest that reliability, edge-case compatibility, and clearer behavior in some setups could be improved.