TackOn

TackOn, officially listed on the Shopify App Store as TackOn: Cart Fees & Surcharges, is a Shopify app in the Upsell and cross-sell category. Add cart surcharges, handling fees, and extra charges to Shopify checkout. Use for processing fees, expedited shipping, rush orders, shipping insurance, gift wrap service, tip collection, donation box, environmental fees, fragile item handling, oversized product charges, and custom service fees. Customers choose to add fees with an opt-in toggle. Keep 100% of revenue—zero commission or revenue sharing. Compatible with slide cart, cart drawer, cart page, and all Online Store 2.0 themes. It averages 5.00 out of 5 across 1 merchant reviews on the Shopify App Store.

TackOn offers a free plan and a single paid plan at $5/month. The free plan includes Includes 20 orders/month, Full access to all features, and Perfect for development stores. The paid plan unlocks advanced features like additional integrations, automations, and deeper customization.

Yes — TackOn offers a free plan alongside paid options. The free plan includes Includes 20 orders/month, Full access to all features, and Perfect for development stores. Paid plans start at $5/month for advanced features.

TackOn launched on December 11, 2025. In that time it has gathered 1 merchant reviews.

TackOn does not currently carry Shopify's Built for Shopify badge. The badge is awarded to apps that meet Shopify's published standards for performance, ease of use, and merchant value — many high-quality apps operate without it.

Merchants commonly compare TackOn with PageFly Landing Page Builder, Kaching Bundles App & Upsells, BOGOS, and GemPages Landing Page Builder. Each alternative covers a similar use case but differs on pricing model, integration depth, and the specific themes merchants praise in reviews — see the alternatives section above for a side-by-side.