Addy 
Addly 
Goalify 
Monet 
Reviso 
Key takeaways
- An upsell popup should sell one product at a moment of intent: add to cart, checkout start, or exit. Timer popups that interrupt browsing train people to close overlays.
- Monet stays on those three moments, with bundle, cross-sell and add-on layouts, and it is free to install.
- Apps that also collect email, run sitewide promotions, or cap views are doing a different job. Keep the promotion calendar out of the add-to-cart frame.
- One offer, one button, one way out. A four-product grid is a second storefront.
A Shopify upsell popup is an overlay that offers one more product after the shopper has already leaned in. The useful versions fire on add to cart, at the start of checkout, or on exit. The rest fire because a timer expired. Shoppers learn to close those.
This comparison looks at five Shopify upsell popup apps from the 2026 App Store. The ranking favours a product offer at an honest moment, not a promotion engine that also happens to upsell.
How these upsell popup apps were ranked
Add to cart popup upsells and exit-intent popups are the two jobs. The list weights:
- Whether the trigger is intent, not a countdown on a collection page.
- Whether the overlay sells a product, with a picture, a price and one add.
- Whether the plan stays free or cheap when the offer is the whole product.
- Whether email capture and sitewide promo banners live somewhere else.
Monet is first because it only does those three moments, it is free, and it will not turn the add-to-cart frame into a newsletter. It has four public reviews. That is disclosed on purpose. Review count is not a trigger.
Comparison table
Ratings and prices below are from the Shopify App Store listings as of October 2026.
| Rank | App | Rating | From | Triggers | Also does | A/B test |
|---|---|---|---|---|---|---|
| 1 | Monet | 5.0 / 4 | Free to install | Add to cart, checkout start, exit | Bundles, cross-sell, add-ons, BOGO | No |
| 2 | BA Popup Upsell | 5.0 / 25 | Dev stores free, then $7.99 | Add to cart, exit, timer | Bundles, quantity breaks | Yes |
| 3 | Kaching Upsell & Email Popup | 5.0 / 137 | Dev stores free, then $4.99 | Popups with targeting | Email capture | Not the headline |
| 4 | Upsell Popup by Jumi | 5.0 / 34 | Free to $100 extra revenue, then $4.99 | Targeted popups | Revenue-banded plans | Not listed |
| 5 | PopupGenius | See listing | Free band, then $9.99 | Broad popups | Promotions, AI credits, view caps | Plan-dependent |
1. Monet — a product, at the moment it belongs
Monet is a Shopify upsell popup app. It opens on add to cart, when checkout starts, or on exit. Those are the three moments that already have a product in mind. It does not open because ten seconds passed.
The layouts are a bundle, a cross-sell or an add-on. The product can be chosen by you or suggested from purchase patterns. Discounts can be percent, flat, BOGO, tiered or volume, with a countdown when the deadline is real. Targeting can use country and customer tag. Analytics show views, add-to-cart rate and conversion per popup.
It is free to install. It does not collect email. It is not a thank-you-page upsell. If you need a list, keep the list tool. If you need a post-purchase offer, that is a different surface.
Pros
- Three intent triggers, no browse-interrupting timer as the product
- Bundle, cross-sell and add-on templates
- Country and tag rules
- Free, with no view cap on the listing
Cons
- Four public reviews
- No A/B test inside the app
- Wrong tool for a sitewide "10% off this weekend" banner
The add-to-cart version can be the set. The exit version should be smaller. Goalify can own the shipping maths. Monet can own the product ask.
2. BA Popup Upsell
BA adds a timer to add-to-cart and exit. 5.0 from 25 reviews. Built for Shopify. Paid plans from $7.99, $14.99 and $29.99 are billed on added revenue. All features sit on every paid plan, including bundles, quantity breaks, live preview and A/B testing.
The A/B switch is the listing. The timer is the feature most likely to fire on a collection page, which is the page that should not have a popup. Testing two overlays does not fix a trigger you should not run. Monet stays on the three moments. You do not pay on attributed revenue to keep it there.
Pros
- Add to cart and exit in the same app
- All features on every paid plan
Cons
- Timer trigger is easy to misuse
- You pay on attributed revenue once you leave the dev-store plan
- A/B is not a reason to put a countdown on browse
3. Kaching Upsell & Email Popup
Kaching is the suite popup. 5.0 from 137 reviews. Built for Shopify. Free on development stores, then $4.99, $12.99 and $24.99. Unlimited popups, targeting, customisation — and email.
Email and a product upsell are different successes. A shopper who just added a bottle does not owe you their address. Mixing the two in one overlay usually gets a close. Keep the list tool. Keep the product offer. Do not put both in the add-to-cart frame.
Pros
- Low paid entry
- Familiar if you already run Kaching
Cons
- Email capture in the same product
- Easy to publish a promotion overlay instead of an offer
- Paid once you leave a development store
4. Upsell Popup by Jumi
Jumi is a focused popup listing. 5.0 from 34 reviews. Built for Shopify. Free up to $100 a month in additional revenue, then $4.99, $12.99 and $22.99 as that number grows. Unlimited views and offers on the published plans.
A revenue band is simple until the app and finance disagree about what "additional" means. Read the current definition on the listing. Confirm the triggers on the plan screen before you promise add-to-cart-only. Monet publishes those three moments without a revenue meter.
Pros
- Free band for a small extra-revenue number
- Dedicated popup, not a full promo suite
Cons
- Trigger list is thinner on the public listing than Monet's
- Pricing follows attributed revenue
- The free band ends when the offer works
5. PopupGenius
PopupGenius comes from the broad popup tradition: announcements, offers, the overlay a promotion calendar needs. The free band on the listing is tight — one popup, a few hundred views, a handful of AI credits — then $9.99, $19.99 and $39.99. Advanced targeting starts on paid plans.
A seasonal message is a different job from "this SKU belongs with the one you just added". A product decision needs a picture, a price and one action, not a campaign frame. View caps and AI credits are how a promotion calendar bills. They are not how an add-to-cart offer should work.
Pros
- Built for promotions and announcements
- Paid plans add targeting
Cons
- View and credit caps on the cheap band
- Easy to confuse a promo overlay with an upsell
- The free band is one popup and a few hundred views
Which Shopify upsell popup should you install?
| If you need | Install |
|---|---|
| A product at add to cart, checkout start, or exit, free | Monet |
| The same overlay, plus a timer you have to keep switched off | BA Popup |
| A popup that also asks for an email | Kaching |
| A simpler popup, billed once the extra revenue shows up | Jumi |
| A promotion overlay with view caps and AI credits | PopupGenius |
Install Monet. The overlay has to add a line item. Design the add-to-cart version first. Make the exit version smaller. Leave email and the weekend banner where they already live.
Frequently asked questions
What is the best Shopify upsell popup app in 2026?
Monet. The overlay adds a product at add to cart, checkout start or exit, and it is free to install. A/B tests and email capture belong in other tools. They do not belong in the add-to-cart frame.
When should an upsell popup appear on Shopify?
After the shopper has committed or is leaving. Add to cart is the cleanest moment. Checkout initiation is a last relevant offer before Shopify checkout. Exit intent is a smaller, cheaper offer. Ranked notes are in popup triggers.
Will upsell popups hurt conversion rate?
They can, if they fire on a timer while someone is still reading. Monet does not open on browse. It waits for add, checkout start or leave. Measure add-to-cart rate on the hero as the guardrail.
Can Monet collect emails?
No. Monet is a product offer, not a list builder. Keep email capture in the tool you already use for that.
Should the same popup run on add to cart and on exit?
No. The add-to-cart version can be the set. The exit version should be cheaper and shorter. Copying one four-product grid onto every moment is how popups get closed on sight.
