SellUp: Add‑ons & Cart Upsell vs ShopLink
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Nov 8, 2026 for SellUp, Oct 13, 2026 for ShopLink.
The short answer
- Paid plans start at $14.99/month for SellUp and $29.99/month for ShopLink.
- SellUp lists 18 features ShopLink’s listing doesn’t mention, including A/B testing, AI recommendations, Cart upsell.
Head to head
Cross-sell, Upsell, funnels, Add On, Recommendations & Cart.
- United States
- United Kingdom
- Australia
Momentum
New reviews each month
Review pace is the clearest public read on how fast an app is winning new merchants.
Free Tier
- · AI On Page Upsell
- · Action Upsell
- · Analytics
- · Basic Support
- · Cart Upsell
- · Post Purchase
Getting Started
- · AI On Page Upsell
- · Action Upsell
- · Analytics
- · Cart Upsell
- · Post Purchase
- · Premium Support
Basic Plan
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureLooking to maximize revenue? With SellUp, you can create precision based cross-sells, upsells, product accessories, shop the look & add-ons for your store. From the product page through to the cart & thank you page, you can offer the best upsell & product add-on flow throughout the customer journey. SellUp will match your stores design so upsells look seamless.
ShopLink App allows merchants to link a main product to add-on products based on size variants. When a main product has size variants, a different add-on product can be linked to each size so both items are purchased together. This ensures the add-on is added to the cart at the same time as the main product and integrates seamlessly with the Shopify cart and checkout.
- Create cross-sells, upsells and add-ons to increase revenue across your store
- Offer add ons and upsells throughout the customer journey
- Create One Check Upsells in 60 seconds. Sell more with SellUp
- Create a frequently bought together section to increase average order value
- Link add-on product variants to specific main product sizes using an Admin Block
- Display a dropdown of add-on product variants on the main product page
- Grouped display of main and add-on products in the cart and checkout
All the numbers
Every figure, side by side
A green dot marks the app ahead on a measured figure. Estimates, gaps and apps that leave no storefront trace never take the lead.
Adoption
| Measure |  SellUp |  ShopLink |
|---|---|---|
| Detected stores | 694 | Not published |
| Net store change, 28 days | −14 | 0 |
| Stores added, 28 days | 14 | Not enough data |
| Big-brand share | 11% | Not enough data |
| Top store categories | Apparel & Accessories, Home & Garden, Health & Beauty | Not published |
| Top store countries | United States, United Kingdom, Australia | Not published |
Reviews
| Measure | SellUp | ShopLink |
|---|---|---|
| App Store rating | 4.4 ★ | Not published |
| App Store reviews | 132 | Not published |
| New reviews, 28 days | 0 | Not enough data |
| Reviewers a year or more in | Not enough data | Not enough data |
FAQ
SellUp and ShopLink: common questions
- Is SellUp or ShopLink cheaper?
- Paid plans start at $14.99/month for SellUp and $29.99/month for ShopLink. Shoplist compares base prices only between monthly plans in the same currency; usage charges and annual plans vary, so check each plan’s limits.
- What features does each app list that the other doesn’t?
- SellUp lists 18 the others don’t mention, such as A/B testing, AI recommendations, Cart upsell, Click-through rates. ShopLink lists 1 the others don’t mention, such as Cart drawer. A feature missing from a listing may still be supported; this compares what each App Store listing says.
- Where does this comparison’s data come from?
- Shoplist crawls Shopify storefronts to detect which apps each store runs, and reads each app’s Shopify App Store listing for reviews, pricing, features and integrations. Store counts are as of Nov 8, 2026 for SellUp, Oct 13, 2026 for ShopLink; estimated figures are labeled.
How Shoplist compares apps
Store counts come from Shoplist’s crawl of Shopify storefronts, which detects the apps each store runs; they are as of Nov 8, 2026 for SellUp, Oct 13, 2026 for ShopLink. Reviews, ratings, plans, features and integrations come from each app’s Shopify App Store listing. 28-day figures are labeled when estimated, and a figure that is missing or estimated never decides who leads. Read the methodology.