Addy
The AI slide cart drawer built for AOV
AI cart drawer with in-cart upsells, volume bundles, free shipping bars and per-Market targeting.
FreeFree to install
Apps
Five Shopify apps built around one number
Average order value. Each app owns a different moment in the journey, shares the same design language, and works alongside the others without conflict.
Ninety9 makes five Shopify apps for growing order value: an AI cart drawer with in-cart upsells (Addy), product bundles, frequently bought together and quantity breaks (Addly), a free shipping progress bar with cart goals and gifts (Goalify), intent-triggered upsell popups (Monet) and self-service post-purchase order editing (Reviso). Every app is a theme app extension with a free plan, installs without theme code and is billed through Shopify.
Addly
Bundles, quantity breaks and AI offers
Product bundles, quantity breaks, volume discounts and AI-recommended offers for Shopify.
Built for Shopify4.8 (104)Free plan, then from $9.99/mo
Goalify
Free shipping bars, gifts and cart goals
Free shipping bars, free gifts, BOGO and AI upsells driven by stackable cart goals.
Built for Shopify5.0 (42)Free plan, then from $3.99/mo
Monet
AI upsell popups at the right moment
AI upsell popups triggered on add to cart, checkout initiation and exit intent.
5.0 (4)Free to install
Reviso
Self-serve order edits that raise AOV
Post-purchase self-service order editing with cancellation deflection and AI upsells.
5.0 (1)Free to install
Side by side
Full comparison
| App | Best for | Category | Rating | Pricing | Built for Shopify | |
|---|---|---|---|---|---|---|
| Addy |
The AI slide cart drawer built for AOV | Cart customization | New | Free to install | — | Install |
| Addly |
Bundles, quantity breaks and AI offers | Product bundles | 4.8★ (104) | Free plan, then from $9.99/mo | Yes | Install |
| Goalify |
Free shipping bars, gifts and cart goals | Upsell and cross-sell | 5.0★ (42) | Free plan, then from $3.99/mo | Yes | Install |
| Monet |
AI upsell popups at the right moment | Product bundles | 5.0★ (4) | Free to install | — | Install |
| Reviso |
Self-serve order edits that raise AOV | Order editing | 5.0★ (1) | Free to install | — | Install |
FAQ
Choosing a Shopify upsell app
Which Shopify upsell app increases average order value fastest?
The one that sits at the moment your shoppers already show intent. If most orders are single items, a bundle and quantity-break app on the product page (Addly) moves AOV first. If carts are small or abandoned, a cart drawer with in-cart upsells (Addy) and a free-shipping progress bar (Goalify) usually pays back within days.
Can I run all five Ninety9 apps at the same time?
Yes. They are designed to stack: Addly owns the product page, Addy the cart, Goalify the goal mechanic, Monet the popup moment and Reviso post-purchase. Offers are not duplicated across apps, and each one can be installed or removed independently.
Are Ninety9 apps Built for Shopify?
Addly and Goalify carry the Built for Shopify badge, which requires meeting Shopify's performance, design and reliability standards. All five apps are theme app extensions with no theme code edits and clean uninstalls.
Do the apps support Shopify Markets and multiple currencies?
Yes. Addy can show a different cart drawer per Shopify Market or customer segment, Goalify lets you set a different free-shipping threshold per country, and Addly displays bundles in every Shopify currency with 13 storefront languages built in. Set thresholds per market rather than converting one global value.
How is billing handled?
Through Shopify. Charges appear on your Shopify invoice in USD, plans can be changed or cancelled from the app at any time, and free plans stay free with no card required.
Not sure which one to install first?
Tell us your store size, average order value and where you think the leak is. We will point you at the one app that will move the number fastest.
Every app installs from the Shopify App Store. No theme code, no developer needed.