SOPO Conversions vs Square: Sticky Add to Cart Bar
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Nov 9, 2026 for SOPO Conversions, Nov 8, 2026 for Square.
The short answer
- On the Shopify App Store: SOPO Conversions 5.0 from 6 reviews and Square 5.0 from 140 reviews.
- Only SOPO Conversions lists a free plan.
- Square lists 4 features SOPO Conversions’s listing doesn’t mention, including Custom styles, Mobile responsive, One-click upsell.
Head to head
- United States
- Mexico
Momentum
New reviews each month
Review pace is the clearest public read on how fast an app is winning new merchants.
Basic Plan
- · All features included
- · Analytics
- · Email support
- · Free up to 30 orders per month
Advanced Plan
- · 30+ to unlimited monthly orders
- · All Basic Plan features included
- · Priority support
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureSOPO Conversions is a conversion optimization platform designed to create engaging shopping experiences throughout the customer journey. It helps merchants encourage purchase decisions, build customer confidence and deliver a seamless buying experience.
Increase conversions by keeping the Add to Cart bar visible while shoppers scroll. Square Sticky Add to Cart Bar helps customers buy faster, reduces cart abandonment, and improves the mobile shopping experience. Fully customizable to match your store’s design, it works on mobile and desktop, and the setup takes 1 minute. Clicks, orders, and revenue can be tracked with built-in analytics.
- Sticky Add to Cart Bar: Keeps the add to cart button visible
- Smart Cart Goals: Boosts AOV with real-time cart milestone rewards.
- Low Stock Counter: Real-time stock alerts create urgency and drive sales.
- Announcement Smart Bar: Countdown banners grab attention instantly.
- Reduce abandonment: Keep Add to Cart always in view for easy purchase access.
- Seamless design: Mimics your store’s style for a consistent experience.
- Fully customizable: Adjust colors, size, and position to fit your store's look.
- Analytics: Monitor clicks, CTR, orders, and revenue growth directly in-app.
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 |  SOPO Conversions |  Square |
|---|---|---|
| Detected stores | 4 | 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 | Food, Beverages & Tobacco, Health & Beauty, Home & Garden | Not published |
| Top store countries | United States, Mexico | Not published |
Reviews
| Measure | SOPO Conversions | Square |
|---|---|---|
| App Store rating | 5.0 ★ | 5.0 ★ |
| App Store reviews | 6 | 140(ahead) |
| New reviews, 28 days | Not enough data | Not enough data |
| Reviewers a year or more in | Not enough data | 1% |
Pricing
| Measure | SOPO Conversions | Square |
|---|---|---|
| Free plan | Yes | Not listed |
| Lowest paid monthly plan | $24.99/month | No monthly plan listed |
| Longest free trial | 14 days | Not listed |
| Plans listed | 2 | Not published |
Listing
| Measure | SOPO Conversions | Square |
|---|---|---|
| Shopify category rank | #27 | #14 |
| Shopify App Charts | #9 in Promotions - Other | Not on this week’s charts |
| Built for Shopify | No | Yes |
| Launched | Jul 10, 2026 | Mar 22, 2024 |
| Languages | 1 | 14 |
| Developer | Sopo Commerce | Square Apps |
FAQ
SOPO Conversions and Square: common questions
- Is SOPO Conversions or Square cheaper?
- Only SOPO Conversions lists a free plan. 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, SOPO Conversions or Square?
- On the Shopify App Store: SOPO Conversions 5.0 from 6 reviews and Square 5.0 from 140 reviews.
- What features does each app list that the other doesn’t?
- Square lists 4 the others don’t mention, such as Custom styles, Mobile responsive, One-click upsell, Sticky cart. 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 9, 2026 for SOPO Conversions, Nov 8, 2026 for Square; 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 9, 2026 for SOPO Conversions, Nov 8, 2026 for Square. 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.