CartStar Slide Cart & Upsell vs SmartCart ‑ Slide Cart Drawer
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Oct 13, 2026 for CartStar Slide Cart & Upsell, Nov 9, 2026 for SmartCart.
The short answer
- Paid plans start at $5/month for CartStar Slide Cart & Upsell and $9.99/month for SmartCart.
- CartStar Slide Cart & Upsell lists 2 features SmartCart’s listing doesn’t mention, including Buy more, save more, One-click upsell.
Head to head
Basic
- · Every feature included
- · Free gift & discount tiers
- · Full design control
- · Post-purchase upsell offers
- · Product recommendations
- · Revenue reports
Starter
- · Every feature included
- · Free gift & discount tiers
- · Full design control
- · Post-purchase upsell offers
- · Product recommendations
- · Revenue reports
Growth
- · Every feature included
- · Free gift & discount tiers
- · Full design control
- · Post-purchase upsell offers
- · Product recommendations
- · Revenue reports
Scale
- · Every feature included
- · Free gift & discount tiers
- · Full design control
- · Post-purchase upsell offers
- · Product recommendations
- · Revenue reports
Pro
- · Discount codes and wishlist
- · Low-stock alerts
- · Slide-out cart drawer
- · Smart add-on suggestions
- · Up to 3 reward tiers with gift picker
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureCartStar replaces your theme's cart with a slide-out drawer: recommendations, a progress bar toward free shipping, free gift, and discounts. Gifts run on a Shopify Function, so nobody reaches the threshold by adding the gift itself. After checkout, one more offer can charge the same card, so what a shopper accepts joins the order they just placed.
SmartCart adds a slide-out cart drawer to your store that encourages shoppers to add more before checkout. Set up to three reward tiers on one progress bar: complimentary shipping, a gift the shopper picks and an automatic gift. Rewards are applied at Shopify checkout. Suggest add-ons, accept discount codes, let shoppers save items to a wishlist and show low-stock alerts.
- Slide-out cart drawer that replaces your theme cart, or works alongside it
- Progress bar toward free shipping, gift or a percentage off
- Product recommendations drawn from what your customers buy together
- Post-purchase upsell that adds to the order a shopper has already paid for
- Slide-out cart drawer that opens on add to cart, keeping shoppers on the page
- Up to 3 reward tiers on one bar: complimentary shipping, chosen gift, auto gift
- Gift and shipping rewards applied automatically at Shopify checkout
- Smart add-on suggestions, discount codes, wishlist and low-stock alerts
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 |  CartStar Slide Cart & Upsell | |
|---|---|---|
| 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 | CartStar Slide Cart & Upsell | |
|---|---|---|
| App Store rating | 5.0 ★ | Not published |
| App Store reviews | 2 | 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 | CartStar Slide Cart & Upsell | |
|---|---|---|
| Free plan | Not listed | Not listed |
| Lowest paid monthly plan | $5/month(ahead) | $9.99/month |
| Longest free trial | 7 days | 7 days |
| Plans listed | 4 | 1 |
Listing
| Measure | CartStar Slide Cart & Upsell | |
|---|---|---|
| Shopify category rank | #212 | Not enough data |
| Shopify App Charts | Not on this week’s charts | Not on this week’s charts |
| Built for Shopify | No | No |
| Launched | Aug 28, 2026 | Nov 9, 2026 |
| Languages | 1 | 1 |
| Developer | Appify Market | Soar Studio |
FAQ
CartStar Slide Cart & Upsell and SmartCart: common questions
- Is CartStar Slide Cart & Upsell or SmartCart cheaper?
- Paid plans start at $5/month for CartStar Slide Cart & Upsell and $9.99/month for SmartCart. 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?
- CartStar Slide Cart & Upsell lists 2 the others don’t mention, such as Buy more, save more, One-click upsell. SmartCart lists 2 the others don’t mention, such as Custom styles, Mobile responsive. 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 for CartStar Slide Cart & Upsell, Nov 9, 2026 for SmartCart; 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 for CartStar Slide Cart & Upsell, Nov 9, 2026 for SmartCart. 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.