Compl∞te Upsell & Cross Sell vs PairUp ‑ Mix & Match
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Oct 13, 2026.
The short answer
- Paid plans start at $14.99/month for Compl∞te Upsell & Cross Sell and $19.99/month for PairUp.
- Compl∞te Upsell & Cross Sell lists 18 features PairUp’s listing doesn’t mention, including A/B testing, Cart upsell, Checkout upsell.
Head to head
Momentum
New reviews each month
Review pace is the clearest public read on how fast an app is winning new merchants.
Complete Plan
- · No Hidden Fees. No Transaction Fees. One price to unlock all features.
PairUp Basic
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureWant to increase your store revenue from day one? Look no further than Complete Upsell and Cross Sell. Our app seamlessly integrates with your Shopify theme, making it easy to display and customize high-converting upsells and cross-sells across your online store. With just a few clicks, you can start boosting your sales and delighting your customers.
PairUp - Mix & Match allows your customers to match TOPS and BOTTOMS together on a visual canvas. This allows customers to match style, mix one type of product with another and get a full idea about what they are buying rather than just keeping it in their imagination.
- Product Page Triggered Upsells and Cross Sells + Personalization
- In Cart Upselling and Cross Selling, Compatible With All Carts + Themes
- Post Purchase and Thank You Page One Click Upsells and Cross Sells to Boost AOV
- A/B and A/B/n Split Testing and Multivariate Testing with Built-in Analytics
- MATCH PRODUCTS: Create a correlation between two kinds of products.
- CUSTOMIZE EVERYTHING: Customize every detail to match your store's look and feel
- INTEGRATE: Works seamlessly with your existing store inventory.
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 |  Compl∞te Upsell & Cross Sell |  PairUp |
|---|---|---|
| Detected stores | Not published | Not published |
| 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 | Not published | Not published |
| Top store countries | Not published | Not published |
Reviews
| Measure | Compl∞te Upsell & Cross Sell | PairUp |
|---|---|---|
| App Store rating | 5.0 ★ | Not published |
| App Store reviews | 3 | Not published |
| New reviews, 28 days | 0 | Not enough data |
| Reviewers a year or more in | Not enough data | Not enough data |
Pricing
| Measure | Compl∞te Upsell & Cross Sell | PairUp |
|---|---|---|
| Free plan | Not listed | Not listed |
| Lowest paid monthly plan | $14.99/month(ahead) | $19.99/month |
| Longest free trial | 45 days | 7 days |
| Plans listed | 1 | 1 |
Listing
| Measure | Compl∞te Upsell & Cross Sell | PairUp |
|---|---|---|
| Shopify category rank | #682 | #243 |
| Shopify App Charts | Not on this week’s charts | Not on this week’s charts |
| Built for Shopify | No | No |
| Launched | Nov 2, 2022 | Jun 26, 2026 |
| Languages | 1 | 1 |
| Developer | Developer Business | AppInGen Technosoft Private Limited |
FAQ
Compl∞te Upsell & Cross Sell and PairUp: common questions
- Is Compl∞te Upsell & Cross Sell or PairUp cheaper?
- Paid plans start at $14.99/month for Compl∞te Upsell & Cross Sell and $19.99/month for PairUp. 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?
- Compl∞te Upsell & Cross Sell lists 18 the others don’t mention, such as A/B testing, Cart upsell, Checkout upsell, Click-through rates. 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 Oct 13, 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 Oct 13, 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.