# TackOn - Shopify Surcharge & Cart Fee App

> TackOn is a Shopify app that lets merchants add configurable surcharges, cart fees, handling charges, and shipping protection to their store. Customers opt-in via a customizable widget on the cart page. No coding required. Setup takes under 5 minutes.

## What TackOn Does

TackOn solves the problem of merchants needing to recover handling costs, offer optional add-ons (like shipping protection or gift wrapping), or apply service surcharges, all without modifying theme code.

Fees are added as cart line items and appear transparently throughout Shopify checkout, ensuring compliance with Shopify's guidelines.

## Key Features

- Fixed, percentage, and tiered fee types based on cart value
- Product-specific fee rules and product exclusions
- Customizable widget templates (10+ designs including festival themes)
- Custom HTML/CSS support for full widget control
- Cart selector library for 200+ Shopify themes (auto-detects cart location)
- Opt-in and opt-out fee modes
- Shopify Markets and multi-currency support
- Analytics and order tracking
- Works with all Online Store 2.0 themes

## Pricing

- Pay-per-use: $0.10 per order that includes a TackOn fee
- Monthly cap: $99.99 (unlimited orders above the cap)
- Free trial: 30 days, no credit card required
- Free tier: First 20 orders free each month

## Pages

- [Homepage](https://tackon.app)
- [Documentation - Quick Start](https://tackon.app/docs/quick-start)
- [Documentation - Installing TackOn](https://tackon.app/docs/installation)
- [Documentation - Fee Types](https://tackon.app/docs/fee-types)
- [Documentation - Price-Based Tiers](https://tackon.app/docs/price-tiers)
- [Documentation - Product Rules](https://tackon.app/docs/product-rules)
- [Documentation - Widget Templates](https://tackon.app/docs/templates)
- [Documentation - Custom HTML & CSS](https://tackon.app/docs/custom-styling)
- [Documentation - Required & Default-On Fees](https://tackon.app/docs/required-fees)
- [Documentation - Date Scheduling](https://tackon.app/docs/date-scheduling)
- [Documentation - Pricing Overview](https://tackon.app/docs/pricing)

## In-Depth Guides (illustrated, screenshot-by-screenshot)

- [Getting Started: Your First Fee](https://tackon.app/docs/first-fee-setup): install, the theme App embeds step, a first charge rule, and an end-to-end test order
- [Fee Types & Price Tiers](https://tackon.app/docs/fee-types-and-tiers): Fixed Amount / Percentage / Combined (% + Fixed), per-item vs cart-wide fees, and building price tiers with no gaps
- [Product-Specific Fees](https://tackon.app/docs/product-specific-fees): binding non-default rules to individual products and how the override resolves
- [Designing the Cart Widget](https://tackon.app/docs/cart-widget-design): widget types, template styles, colours, Dynamic Content, and the advanced HTML/CSS editor
- [Scheduling, Visibility & Troubleshooting](https://tackon.app/docs/widget-troubleshooting): date schedules, Visibility Control Rules, Theme Selectors, and a symptom-by-symptom playbook
- [Contact](https://tackon.app/contact)
- [Privacy Policy](https://tackon.app/privacy)
- [Terms of Service](https://tackon.app/terms)
- [Shopify App Store Listing](https://apps.shopify.com/tackon)

## Reviews

Overall rating: 5.0 from 2 reviews on the Shopify App Store.

- 5/5 stars, Jägermeister Letter Shop (Netherlands, April 2026): "Ze helpen erg snel en goed." (They help very quickly and well.)
- 5/5 stars, Palácio Tangará (Brazil, July 2026): "O que vale ressaltar sobre a experiência que tive, é que a equipe deles é muito prestativa, um ótimo suporte." (What stands out about my experience is how helpful their team is. Great support.)

## Technical Details

- Built on Remix (React framework)
- Hosted at tackon.app
- Shopify Partner app, listed on the Shopify App Store
- Support email: hello@usenormalize.com

## Use Cases

- Shipping protection / route protection alternative
- Handling fee recovery
- Gift wrapping optional add-on
- Rush processing surcharge
- Environmental / carbon offset fee
- Service charge for custom orders
- Small order surcharge