CartKing‑Free Gifts BuyX GetY vs Upsellio ‑ BOGO & Free Giftsfor Shopify (2026)
CartKing and Upsellio are both Shopify apps designed to increase average order value (AOV) through BOGO, free gift, and upselling strategies. CartKing emphasizes automatically adding free gifts based on cart rules and offers a wider array of gifting options, including tiered gifts and customizable banners. Its focus appears to be on simpler, automated gift-based promotions and strong customer support. Upsellio, on the other hand, positions itself as a more versatile platform for creating various types of Buy X Get Y offers, including free gifts, discounted upsells, and product bundles, with a strong emphasis on displaying these offers across various store pages and providing in-app analytics for ROI tracking.
At a Glance
CartKing‑Free Gifts BuyX GetY
96 reviews
Upsellio ‑ BOGO & Free Gifts
66 reviews
Detailed Overview
CartKing‑Free Gifts BuyX GetY
Now, unlock Free gift with Purchase, Auto add to Cart, Buy X Get Y, Tired Gifts, BOGO
Key Features
- Auto-add free gifts with purchase when cart meets your rules
- Show multiple free gift options in cart and cart drawer
- Run multi-gift, tiered gifts and buy X get Y gift campaigns
- Customize gift banners to match your theme and run them with other discounts
- Announce free gift offers on product pages to encourage customers to add to cart
Upsellio ‑ BOGO & Free Gifts
Create Buy One Get One, Free gift with purchase, Cart Upsell & Cross Sell, Buy 2 Get 1 offers & more
Key Features
- Create Buy X Get Y type Offers easily for cart or any other page
- Pop up and Embed Display Modes with easy to customize Upsell & Cross Sell offers
- Track conversions by app in Analytics section of app easily to see the ROI
- Create Free gift with purchase offers to boost AOV & increase conversion rate
- Cart Upsell bundle options where you can upsell products bundles
Feature Comparison
| Rating | 4.9/5 | 4.3/5 |
Rating CartKing‑Free Gifts BuyX GetY4.9/5 Upsellio ‑ BOGO & Free Gifts4.3/5 | ||
| Reviews | 96 | 66 |
Reviews CartKing‑Free Gifts BuyX GetY96 Upsellio ‑ BOGO & Free Gifts66 | ||
| Primary Focus | Automated Free Gifts & Buy X Get Y | Versatile Buy X Get Y, Upselling & Cross-selling |
Primary Focus CartKing‑Free Gifts BuyX GetYAutomated Free Gifts & Buy X Get Y Upsellio ‑ BOGO & Free GiftsVersatile Buy X Get Y, Upselling & Cross-selling | ||
| Gift Presentation | Auto-add or Gift Widget | Popup or Embed |
Gift Presentation CartKing‑Free Gifts BuyX GetYAuto-add or Gift Widget Upsellio ‑ BOGO & Free GiftsPopup or Embed | ||
| Analytics | Not explicitly stated | In-App ROI Tracking |
Analytics CartKing‑Free Gifts BuyX GetYNot explicitly stated Upsellio ‑ BOGO & Free GiftsIn-App ROI Tracking | ||
| Customer Support | Dedicated Live Chat & Tech Support | Not explicitly stated |
Customer Support CartKing‑Free Gifts BuyX GetYDedicated Live Chat & Tech Support Upsellio ‑ BOGO & Free GiftsNot explicitly stated | ||
| Customization | Customizable gift banners | Customizable Upsell & Cross Sell offers |
Customization CartKing‑Free Gifts BuyX GetYCustomizable gift banners Upsellio ‑ BOGO & Free GiftsCustomizable Upsell & Cross Sell offers | ||
| Offer Types | Free Gift, BOGO, Buy X Get Y, Tiered Gifts | Buy X Get Y, Flash Sales, Product Bundles, Discounted Upsells |
Offer Types CartKing‑Free Gifts BuyX GetYFree Gift, BOGO, Buy X Get Y, Tiered Gifts Upsellio ‑ BOGO & Free GiftsBuy X Get Y, Flash Sales, Product Bundles, Discounted Upsells | ||
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Conversion Audit
Our Verdict
CartKing is a better choice for merchants prioritizing easy-to-implement, automated free gift promotions with strong customer support and a focus on gift banner customization to match their store's theme. The higher rating and larger number of reviews suggest a more positive user experience. Upsellio suits merchants looking for a more versatile tool to create a wider range of offers (including upsells, cross-sells, and bundles) displayed across multiple store pages, and who value in-app analytics to track campaign performance. Merchants comfortable with a potentially steeper learning curve might prefer Upsellio, while those desiring simpler gift promotions will likely prefer CartKing.
Common Questions
Which app is easier to use?
CartKing likely offers a more straightforward user experience due to its focus on automated free gift promotions. Upsellio, with its broader feature set, might require more configuration.
Which app is better for tracking ROI?
Upsellio explicitly offers in-app analytics to track sales and ROI per app, making it easier to measure campaign effectiveness. CartKing doesn't specifically mention ROI tracking.
Which app provides better customer support?
CartKing explicitly mentions dedicated live chat and technical support, suggesting a stronger commitment to customer assistance. Upsellio doesn't provide details about support.
Which app offers more advanced gifting options?
CartKing offers tiered gifts and the ability to show multiple gift options in the cart and cart drawer, providing potentially more advanced gifting capabilities.
Which app is best for upselling and cross-selling?
Upsellio is the better choice for upselling and cross-selling, as it specifically highlights these features and the ability to display them on various store pages.
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