Star Product Addons vs XB: AI Product Upsell & Addons
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Nov 8, 2026.
The short answer
- XB is detected on 5× as many Shopify stores as Star Product Addons: 30 vs 6 as of Nov 8, 2026.
- On the Shopify App Store: Star Product Addons 5.0 from 3 reviews and XB 5.0 from 6 reviews.
- Only Star Product Addons lists a free plan.
- Star Product Addons lists 3 features XB’s listing doesn’t mention, including Cart upsell, Click-through rates, Conversion rates.
Head to head
- Australia
- India
- Australia
- Denmark
Momentum
New reviews each month
Review pace is the clearest public read on how fast an app is winning new merchants.
Free
- · 1 collection add-on
- · 1 product add-on
- · Basic display layouts
Standard
- · 7-day free trial
- · All 5 layouts and 15+ field types
- · Analytics for impressions, selections, a
- · Automatic Shopify discounts at checkout
- · Cart-add cross-sells with product attrib
- · Custom CSS
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureStar Product Addons lets merchants add related products as add-ons on product and collection pages without editing theme code. Merchants pick which products to add as add-ons, choose a display layout, and the widget appears on matching storefront pages. When a shopper selects an add-on, it is added to the cart and an automatic Shopify discount is applied at checkout, so no coupon codes are needed.
XB: AI Product Upsell & Addons uses advanced AI to analyze product details, titles, tags, collections, order data, and customer behavior. It then delivers smart upsell suggestions and relevant addons directly on the product page. The app offers multiple clean, modern layouts with easy no-code customization. Xboost loads fast, fits seamlessly with any theme, and helps increase AOV without affecting performance.
- Star Product Addons lets merchants to addrelated products as add-ons on product
- Automatic Shopify discounts applied at checkout — no coupon codes needed
- Built-in analytics: impressions, selections, and revenue per add-on
- Product Add-On: tempt customers with must-have extras
- Multiple recommendation sources: AI-powered and manual options
- Multiple templates: choose the ideal widget style for your store
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 |  Star Product Addons |  XB |
|---|---|---|
| Detected stores | 6 | 30(ahead) |
| Net store change, 28 days | 0 | 0 |
| Stores added, 28 days | Not enough data | Not enough data |
| Big-brand share | Not enough data | Not enough data |
| Top store categories | Electronics, Health & Beauty, Services | Apparel & Accessories, Home & Garden, Health & Beauty |
| Top store countries | Australia | India, Australia, Denmark |
Reviews
| Measure | Star Product Addons | XB |
|---|---|---|
| App Store rating | 5.0 ★ | 5.0 ★ |
| App Store reviews | 3 | 6(ahead) |
| New reviews, 28 days | Not enough data | Not enough data |
| Reviewers a year or more in | Not enough data | Not enough data |
Pricing
| Measure | Star Product Addons | XB |
|---|---|---|
| Free plan | Yes | Not listed |
| Lowest paid monthly plan | $20/month | No monthly plan listed |
| Longest free trial | 7 days | Not listed |
| Plans listed | 2 | Not published |
Listing
| Measure | Star Product Addons | XB |
|---|---|---|
| Shopify category rank | #324 | #280(ahead) |
| Shopify App Charts | Not on this week’s charts | Not on this week’s charts |
| Built for Shopify | No | No |
| Launched | Jun 26, 2026 | Nov 21, 2025 |
| Languages | 1 | 1 |
| Developer | Star Apps | Xboost |
FAQ
Star Product Addons and XB: common questions
- Which is more popular, Star Product Addons or XB?
- XB is detected on 5× as many Shopify stores as Star Product Addons: 30 vs 6 as of Nov 8, 2026.
- Is Star Product Addons or XB cheaper?
- Only Star Product Addons lists a free plan. Shoplist compares base prices only between monthly plans in the same currency; usage charges and annual plans vary, so check each plan’s limits.
- Which has better reviews, Star Product Addons or XB?
- On the Shopify App Store: Star Product Addons 5.0 from 3 reviews and XB 5.0 from 6 reviews.
- What features does each app list that the other doesn’t?
- Star Product Addons lists 3 the others don’t mention, such as Cart upsell, Click-through rates, Conversion rates. XB lists 2 the others don’t mention, such as Funnel performance, One-click add-ons. 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; 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. 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.