Cart Buddy: Checkout upsells vs Scale & Tail
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 Cart Buddy, Oct 13, 2026 for Scale & Tail.
The short answer
- Only Cart Buddy lists a free plan. Paid plans start at $7/month for Cart Buddy and $19.99/month for Scale & Tail.
- Cart Buddy lists 7 features Scale & Tail’s listing doesn’t mention, including AI recommendations, Checkout upsell, Custom rules.
Head to head
- Denmark
Momentum
New reviews each month
Review pace is the clearest public read on how fast an app is winning new merchants.
Free
- · Basic campaign setup
- · Checkout & PDP display
- · Up to 50 monthly orders
Starter
- · Basic usage statistics
- · Email support
- · Everything in Free
- · Up to 500 monthly orders
Growth
- · Everything in Starter
- · Full analytics dashboard
- · Performance insights
- · Priority email support
- · Up to 2,000 monthly orders
Pro
- · Everything in Growth
- · Full analytics dashboard
- · No throttling or limits
- · Priority support
- · Unlimited orders
Scale & Tail Pro
- · 14-day free trial included
- · Cart drawer recommendations
- · Complement rules & custom groups
- · Performance metrics dashboard
- · Product & collection species mapping
- · Species selector storefront widget
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureUnlock new revenue potential with tailored checkout upsells and cross-sells that seamlessly integrate into your store's checkout process. This app is designed to enhance the shopping experience by recommending relevant products, encouraging customers to add more to their cart. With an intuitive setup, it saves time by automating offer management, making it easy to adjust and personalize based on customer behavior.
Pet stores sell for many species, but generic upsell apps ignore pet type. Scale & Tail lets merchants define species, map collections, and group products so cart recommendations match the shopper. Shoppers pick a species, add to cart, and see complementary products in a smart drawer. Enable the theme app embed in admin without editing theme code. Track impressions, clicks, and add-to-carts in Metrics.
- Drive more sales with tailored product suggestions at checkout.
- Use smart upsells (AI) to show your customer's product recommendation.
- Easily integrate with your store’s checkout process without complex setup.
- Personalize suggestions to match customer preferences.
- Species selector on storefront so shoppers pick their pet before buying
- Smart cart drawer with complementary product recommendations
- Collection mapping and custom groups for accurate pet product rules
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 |  Cart Buddy |  Scale & Tail |
|---|---|---|
| Detected stores | 1 | 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 | Apparel & Accessories | Not published |
| Top store countries | Denmark | Not published |
Reviews
| Measure | Cart Buddy | Scale & Tail |
|---|---|---|
| App Store rating | 5.0 ★ | Not published |
| App Store reviews | 1 | Not published |
| New reviews, 28 days | Not enough data | Not enough data |
| Reviewers a year or more in | Not enough data | Not enough data |
Pricing
| Measure | Cart Buddy | Scale & Tail |
|---|---|---|
| Free plan | Yes | Not listed |
| Lowest paid monthly plan | $7/month(ahead) | $19.99/month |
| Longest free trial | Not listed | 14 days |
| Plans listed | 4 | 1 |
Listing
| Measure | Cart Buddy | Scale & Tail |
|---|---|---|
| Shopify category rank | #629(ahead) | #1155 |
| Shopify App Charts | Not on this week’s charts | Not on this week’s charts |
| Built for Shopify | No | No |
| Launched | Nov 18, 2024 | Jul 10, 2026 |
| Languages | 1 | 1 |
| Developer | Tibaka IT | Cortex Code |
FAQ
Cart Buddy and Scale & Tail: common questions
- Is Cart Buddy or Scale & Tail cheaper?
- Only Cart Buddy lists a free plan. Paid plans start at $7/month for Cart Buddy and $19.99/month for Scale & Tail. 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?
- Cart Buddy lists 7 the others don’t mention, such as AI recommendations, Checkout upsell, Custom rules, Frequently bought together. Scale & Tail lists 3 the others don’t mention, such as Cart drawer, Click-through rates, Conversion 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 Nov 8, 2026 for Cart Buddy, Oct 13, 2026 for Scale & Tail; 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 Cart Buddy, Oct 13, 2026 for Scale & Tail. 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.