Free Persistent Cart ‑ Relay vs Persistent Cart ‑ Sync Devices
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
- Persistent Cart is detected on 97× as many Shopify stores as Free Persistent Cart: 772 vs 8 as of Nov 8, 2026.
- On the Shopify App Store: Free Persistent Cart 5.0 from 4 reviews and Persistent Cart 4.9 from 65 reviews.
- Persistent Cart lists 1 features Free Persistent Cart’s listing doesn’t mention, including Automated workflows.
Head to head
Let customers shop on many devices with the same cart
- France
- India
- Japan
- United States
- Canada
- United Kingdom
Momentum
New reviews each month
Review pace is the clearest public read on how fast an app is winning new merchants.
Shopify Basic
- · Compatible with all Shopify themes
- · Fast, responsive support
- · For stores on Shopify Basic plan
- · No cart storage time limit
- · Optimized for B2B and wholesale carts
- · Tracks syncs and revenue impact
Shopify Grow
- · Compatible with all Shopify themes
- · Fast, responsive support
- · For stores on Shopify Grow plan
- · No cart storage time limit
- · Optimized for B2B and wholesale carts
- · Tracks syncs and revenue impact
Shopify Advanced
- · Compatible with all Shopify themes
- · Fast, responsive support
- · For stores on Shopify Advanced plan
- · No cart storage time limit
- · Optimized for B2B and wholesale carts
- · Tracks syncs and revenue impact
Shopify Plus
- · Compatible with all Shopify themes
- · Fast, responsive support
- · For Shopify Plus stores
- · No cart storage time limit
- · Optimized for B2B and wholesale carts
- · Tracks syncs and revenue impact
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureShoppers browse on a phone and buy on a laptop. Cart Relay saves a signed-in customer's cart against their customer account and puts it back when they sign in on another device. No link to click, no code to enter. If the second device already has a cart, the two are combined: quantities of shared items add up and no line is dropped.
Shoppers browse across devices, but Shopify carts don’t follow when they switch devices. Persistent Cart prevents lost sales by automatically syncing logged-in customers’ latest carts across devices in the background. No emails, pop-ups, notifications, opt-ins, or code changes — just seamless cart persistence that reduces abandonment, grows AOV, and helps shoppers keep buying instead of starting over.
- Unlimited cart syncs between phones, laptops and browsers
- Setup is one theme app embed — no code, and nothing to configure
- Two carts merge automatically: quantities add up, no line is dropped
- Sign-out clears the cart from that browser and restores it at next sign-in
- Moves your customer's carts across devices automatically when they switch
- Installs and sets up with 1-click and instantly works in the background
- Automatically clears cart on logout or privacy (optional)
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 |  Free Persistent Cart |  Persistent Cart |
|---|---|---|
| Detected stores | 8 | 772(ahead) |
| Net store change, 28 days | 0 | +4 |
| Stores added, 28 days | Not enough data | 19 |
| Big-brand share | Not enough data | 22% |
| Top store categories | Home & Garden, Apparel & Accessories, Electronics | Apparel & Accessories, Health & Beauty, Home & Garden |
| Top store countries | France, India, Japan | United States, Canada, United Kingdom |
Reviews
| Measure | Free Persistent Cart | Persistent Cart |
|---|---|---|
| App Store rating | 5.0 ★(ahead) | 4.9 ★ |
| App Store reviews | 4 | 65(ahead) |
| New reviews, 28 days | Not enough data | 4 |
| Reviewers a year or more in | Not enough data | Not enough data |
Pricing
| Measure | Free Persistent Cart | Persistent Cart |
|---|---|---|
| Free plan | Not listed | Not listed |
| Lowest paid monthly plan | No monthly plan listed | $4.99/month |
| Longest free trial | Not listed | 30 days |
| Plans listed | Not published | 4 |
Listing
| Measure | Free Persistent Cart | Persistent Cart |
|---|---|---|
| Shopify category rank | #64 | #19 |
| Shopify App Charts | Not on this week’s charts | #11 in Wishlists |
| Built for Shopify | No | Yes |
| Launched | Aug 27, 2026 | May 2, 2016 |
| Languages | 1 | 1 |
| Developer | Flywheel Systems | Customer First focus |
FAQ
Free Persistent Cart and Persistent Cart: common questions
- Which is more popular, Free Persistent Cart or Persistent Cart?
- Persistent Cart is detected on 97× as many Shopify stores as Free Persistent Cart: 772 vs 8 as of Nov 8, 2026.
- Which has better reviews, Free Persistent Cart or Persistent Cart?
- On the Shopify App Store: Free Persistent Cart 5.0 from 4 reviews and Persistent Cart 4.9 from 65 reviews.
- What features does each app list that the other doesn’t?
- Persistent Cart lists 1 the others don’t mention, such as Automated workflows. 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.