Slide is NINE15’s proprietary Shopify app, created to deliver seamless upsells, real-time cart updates, live search, and instant checkout inside a sleek slide-out panel—helping brands increase average order value while maintaining a clean, on-brand experience.
Why We Built Slide
Identified recurring cart friction across client projects
Needed a scalable, theme-compatible upsell solution
Wanted full design control without bloated apps
Built to serve both NINE15 clients and the broader Shopify ecosystem
Across multiple client projects, we identified the same friction points: traditional cart pages interrupted the shopping flow, upsells felt disconnected, and checkout paths required too many clicks. Brands needed a faster, cleaner, and more flexible cart experience that increased AOV without cluttering the interface or disrupting brand design.
NINE15 built Slide as a conversion-first Shopify app designed to integrate seamlessly with any theme. We focused on creating an elegant slide-out panel that allows customers to search, discover upsells, and move to checkout instantly—without page reloads.
Slide includes a drag-and-drop layout editor, real-time cart updates, and full customization controls so merchants can tailor the experience to match their brand while optimizing conversion.
Slide has been implemented across multiple client stores, consistently improving checkout flow and engagement. Clients onboarding onto Slide report smoother user journeys, increased upsell visibility, and stronger overall cart performance.The app is now part of NINE15’s growth toolkit—supporting higher AOV and faster purchasing paths across Shopify storefronts.
An elegant slide-out panel replaces the traditional cart page—keeping customers engaged without interrupting their shopping flow.
Strategic product recommendations appear directly inside the cart panel to increase AOV naturally.
Real-time cart updates and a “Checkout Now” button eliminate unnecessary steps and reduce friction.
Drag-and-drop layout controls, customizable styling, and theme compatibility ensure a seamless brand experience.
Let's create a Shopify experience that's built to scale.
