Every upsell app promises a double-digit lift. Few stores see it, because the lift comes from where and how an offer appears, not from the app itself. Here is what the benchmarks say, and the order we'd test things in.
Average order value is the cheapest growth lever you own: the customer is already in your store, the ad spend is already paid. But stacking five overlapping popups is the fastest way to slow your store and irritate buyers. The goal is a small number of offers that fit the shopper's intent at each step.
15–35%expected AOV lift on orders that include a bundle
3–8%of sessions convert on a well-placed in-cart upsell
5–12%of buyers accept a post-purchase offer
Expected AOV lift by tactic
Benchmark range, % lift in average order value
Source: Cartylabs 2026 AOV Playbook (publisher estimates, directional). Test against your own data.
What works
Four tactics, ranked by how we'd test them
Each sits at a different moment in the journey. Start with the offers that need the least friction from the shopper.
01Offers that earn their place
1
Fixed bundles on the product page
Pair products people already buy together, at a 10–18% bundle discount. Below 10% feels pointless; above 20% erodes margin.
Shopify BundlesBundle app (mix-and-match)
2
Progress bar to a free-shipping or free-gift threshold
Set the bar 10–15% above current AOV so it feels reachable. One clear target beats three competing ones.
Cart progress barCart drawer upsell
3
One in-cart upsell, priced 20–40% of the cart
Show one relevant add-on, two at most. A cheap, obvious accessory outperforms a clever premium upgrade.
In-cart upsell appRecommendations
4
Post-purchase offer after payment
Zero risk to conversion because the order is already placed. Offer a low-priced, one-click add-on.
ReConvertCheckout extension
Read the numbers with care. Most published lift figures come from app vendors and are not independent. Only about 5% of brands reach a 3–4% upsell conversion rate, so treat ranges as targets to test against, not promises.
Run it properly
Where to start
Your situationStart withWhy
Customers often buy the same 2–3 items together
Fixed bundle
Proven pairing, simple to merchandise
Mostly single-item orders
Free-shipping progress bar
Nudges one more item with no discount
Thin margins on discounts
Post-purchase offer
No impact on checkout conversion
Slow mobile store
Cut apps first
Extra scripts can cost more than they add
Change one thing at a time, run it for at least two weeks, and judge it on revenue per visitor, not on app dashboards. If AOV rises but conversion falls, you've moved revenue, not grown it.
Where Glyde fits
Offers that fit the design, not fight it
Upsell tools work best when they are designed into the cart drawer, product page and checkout flow, not bolted on. At Glyde we plan the offer logic, build it into your theme, and measure it against revenue per visitor so the app stack stays lean.
The Glyde Growth Framework
01
PositionBrand strategy
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02
DesignVisual identity
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03
BuildWebsite & assets
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04
MarketSEO · Ads · Social
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05
ScaleSustainable growth
Want a higher AOV without discount fatigue?
Glyde audits your Shopify offers, cart and app stack, then builds what actually moves revenue per visitor.