Because: CRO + Personalization vs SellUp: Add‑ons & Cart Upsell
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
- SellUp is detected on 38× as many Shopify stores as Because: 691 vs 18 as of Nov 8, 2026.
- On the Shopify App Store: Because 4.9 from 77 reviews and SellUp 4.4 from 132 reviews.
- Only Because lists a free plan. Paid plans start at $99/month for Because and $14.99/month for SellUp.
- SellUp lists 12 features Because’s listing doesn’t mention, including AI recommendations, Click-through rates, Custom CSS.
Head to head
- United States
- United Kingdom
- India
- 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.
Talk to Us
- · Stores with 2,500+ orders/mo, contact us
$99/mo
- · All Features Included
- · Up to $500K Annual Store Revenue
- · Up to 500 orders/mo
$499/mo
- · All Features Included
- · Up to $3M Annual Store Revenue
- · Up to 2,500 orders/mo
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
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureBecause enables high-converting, personalized customer journeys from homepage to cart. Add new high-converting content using your Klaviyo segment data, UTM data, and Shopify product data. No developer needed. Turn every campaign into an A/B test and drive more revenue for your business. Transform campaigns with real-time A/B testing and boost revenue with dynamic product recommendations and banners.
Looking 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.
- Add banners, top bars, badges, & more on your product, collection, & cart pages.
- Increase CR through dynamic personalization using Klaviyo and Shopify data.
- Give shoppers reasons to buy from your store on every page.
- Edit pages faster with Canva-like editor and stop chasing developers for help.
- 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
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 |  Because |  SellUp |
|---|---|---|
| Detected stores | 18 | 691(ahead) |
| Net store change, 28 days | −30 | −14 |
| Stores added, 28 days | Not enough data | 14 |
| Big-brand share | Not enough data | 11% |
| Top store categories | Apparel & Accessories, Food, Beverages & Tobacco, Furniture | Apparel & Accessories, Home & Garden, Health & Beauty |
| Top store countries | United States, United Kingdom, India | United States, United Kingdom, Australia |
Reviews
| Measure | Because | SellUp |
|---|---|---|
| App Store rating | 4.9 ★(ahead) | 4.4 ★ |
| App Store reviews | 77 | 132(ahead) |
| New reviews, 28 days | Not enough data | 0 |
| Reviewers a year or more in | Not enough data | Not enough data |
FAQ
Because and SellUp: common questions
- Which is more popular, Because or SellUp?
- SellUp is detected on 38× as many Shopify stores as Because: 691 vs 18 as of Nov 8, 2026.
- Is Because or SellUp cheaper?
- Only Because lists a free plan. Paid plans start at $99/month for Because and $14.99/month for SellUp. 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, Because or SellUp?
- On the Shopify App Store: Because 4.9 from 77 reviews and SellUp 4.4 from 132 reviews.
- What features does each app list that the other doesn’t?
- Because lists 9 the others don’t mention, such as Announcement bar, Bundles, Cart drawer, Checkout upsell. SellUp lists 12 the others don’t mention, such as AI recommendations, Click-through rates, Custom CSS, Custom HTML. 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.