Add to cart button ‑ FoxCart vs FlowCheck
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 Add to cart button, Feb 19, 2026 for FlowCheck.
The short answer
- FlowCheck lists 3 features Add to cart button’s listing doesn’t mention, including Custom CSS, Custom styles, Mobile responsive.
Head to head
Sticky add to cart, Quick Buy, Quick Checkout, Buy Now
- United States
- United Kingdom
- Australia
Momentum
New reviews each month
Review pace is the clearest public read on how fast an app is winning new merchants.
Best value
- · Add to cart button
- · Animations
- · First 5 days are FREE!
- · Multiple styles
- · Notifications
- · Quantity fields
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureThis app will boost your sales by adding "Add to cart" button to every product in your store, a sticky bar on product pages and a floating sticky cart button. It will make it easier to add products to the cart. Your customers will now buy more products and spend more money in your store.
FlowCheck resolves technical friction points in your store's purchase journey. It specifically targets laggy quantity selectors and buttons that require multiple clicks to trigger. By acting as a performance layer, it ensures every click is captured and processed instantly across all devices. This leads to a smoother shopping experience and removes invisible barriers to checkout.
- Add "Add to cart" buttons on every product in your shop.
- Show "Sticky add to cart bar" on each product page to boost conversions
- Redirect users directly to the checkout when they add an item to the cart
- Show sticky cart on a fixed position in your shop.
- Ensures Add to Cart and Checkout buttons respond to the very first click.
- Fixes laggy quantity inputs to prevent errors during the purchase flow.
- Runs as a safe theme extension without modifying your store's code.
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 |  Add to cart button |  FlowCheck |
|---|---|---|
| Detected stores | 163 | Not published |
| Net store change, 28 days | +7 | 0 |
| Stores added, 28 days | 10 | Not enough data |
| Big-brand share | Not enough data | Not enough data |
| Top store categories | Apparel & Accessories, Food, Beverages & Tobacco, Health & Beauty | Not published |
| Top store countries | United States, United Kingdom, Australia | Not published |
Reviews
| Measure | Add to cart button | FlowCheck |
|---|---|---|
| App Store rating | 4.9 ★ | Not published |
| App Store reviews | 59 | Not published |
| New reviews, 28 days | 0 | Not enough data |
| Reviewers a year or more in | Not enough data | Not enough data |
Pricing
| Measure | Add to cart button | FlowCheck |
|---|---|---|
| Free plan | Not listed | Not listed |
| Lowest paid monthly plan | $12.99/month | No monthly plan listed |
| Longest free trial | 5 days | Not listed |
| Plans listed | 1 | Not published |
Listing
| Measure | Add to cart button | FlowCheck |
|---|---|---|
| Shopify category rank | #219(ahead) | #495 |
| Shopify App Charts | #21 in Cart customization | Not on this week’s charts |
| Built for Shopify | No | No |
| Launched | Mar 20, 2017 | Feb 6, 2026 |
| Languages | 1 | 1 |
| Developer | Bundler.app | 212 MEDYA |
FAQ
Add to cart button and FlowCheck: common questions
- What features does each app list that the other doesn’t?
- FlowCheck lists 3 the others don’t mention, such as Custom CSS, 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 Nov 9, 2026 for Add to cart button, Feb 19, 2026 for FlowCheck; 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 Add to cart button, Feb 19, 2026 for FlowCheck. 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.