One caps its free plan by how many orders your store takes each month, whether the app helped or not. The other caps it by how much revenue the app itself can prove it made you, and won't charge a cent until it does. Same category, opposite idea of what "free" should mean.
Selleasy's free plan renews monthly but cuts off once your store passes 50 total orders; Essential's free plan never expires by date — it expires only after the app is credited with $100 in extra revenue. The right pick depends on whether your bottleneck is order volume or proving ROI first.
Facts pulled directly from each vendor's own Shopify App Store listing, as of 26 August 2026.
Both listings describe their free plans in their own words. Selleasy: "Up to 50 orders/mo. Your store's total order count will be considered." Essential: "Up to $100 additional revenue generated." Those two sentences describe two entirely different accounting systems — one counts everything happening in your store, the other counts only what the app can take credit for.
| App | Plan | Price | Cap unit | Standout feature |
|---|---|---|---|---|
| Selleasy | Free | $0 | 50 orders/mo, total store orders (renews monthly, never permanently expires) | Frequently-bought-together recommendations across product, cart & post-purchase |
| Selleasy | Paid (from) | $9/mo | Unlocks orders beyond 50/mo | Broad international market support |
| Essential | Free | $0 | $100 attributed revenue (expires only once earned, no calendar limit) | Outcome-based — never charges a store the app hasn't yet helped |
| Essential | Paid (from) | $9.99/mo | Scales up to $500/mo at higher tiers | Deeper post-purchase upsell capability at scale |
Selleasy: apps.shopify.com/upsell-cross-sell-kit-1 · Essential: apps.shopify.com/essential-post-purchase-upsell — both read from the vendor's own listing on 26 August 2026.
Essential's paid ladder, per its own listing, starts at $9.99/mo and scales up to $500/mo at its highest tier — a wide range that implies several intermediate steps its listing doesn't break out in detail. Selleasy's listing states only the $9/mo starting price above 50 orders/mo and doesn't name further tiers beyond that.
The pricing tables tell you what each plan costs. What actually separates Selleasy and Essential is the logic each vendor chose for deciding when "free" stops applying — and that logic shapes what each app is optimized to prove.
Selleasy's free cap counts your store's total order volume — every order, whether or not Selleasy's recommendations had anything to do with it. Essential's free cap counts only revenue the app is credited with generating. Practically, that means a Selleasy store can burn through its free plan purely from unrelated sales growth, while an Essential store keeps its free plan indefinitely if the app simply isn't doing much — the cap only closes in when Essential is working.
Selleasy's stated edge is frequently-bought-together recommendations shown across the product page, the cart, and post-purchase — three placements pulling from one matching engine, plus broad international support for stores selling across markets. Essential's edge isn't a placement or a market claim at all; it's a pricing promise. An outcome-based free tier is a structural guarantee that a store never pays for an app that hasn't produced anything, which is a different kind of "better" than wider feature coverage.
Essential's paid tiers stretch from $9.99/mo up to $500/mo, a range wide enough to suggest it's built to serve both small stores and considerably larger ones on the same product. Selleasy's listing names only a flat $9/mo starting price with no further published tiers, which reads as a simpler, narrower pricing shape aimed at unlocking volume rather than segmenting by store size.
Neither free plan is free of a real cost. Both vendors have simply chosen to charge it under different conditions.
Selleasy's free plan counts your store's total order count, not orders the upsell app itself influenced. A store can lose its free plan purely from general sales growth that has nothing to do with Selleasy at all — the app can be doing almost nothing and you'll still cross 50 orders a month simply because the rest of the business is doing well. The cap renews every month, which is generous, but it's tied to a number the app doesn't control.
A revenue-attributed cap sounds like the fairer deal, and in one sense it is — but it comes with an odd bind. The free plan doesn't run out from neglect or from time passing; it runs out the moment the app succeeds. A store that installs Essential hoping it drives real upsell revenue will, if it works, hit the $100 threshold and start paying almost immediately. The free tier isn't a long runway for a working app — it's a short one that ends right when you'd want to keep using it for free the most.
| Use case | Better fit |
|---|---|
| Steady, moderate order volume you want a predictable free tier for, regardless of upsell performance | Selleasy — the cap renews monthly and doesn't depend on the app working |
| Testing whether upsells work at all before committing any budget | Essential — it literally cannot charge you until it's proven itself |
| Want wide recommendation coverage (product, cart, post-purchase) and international reach | Selleasy — its listing specifically claims this breadth |
| A fast-growing store expecting the app to succeed quickly and comfortable paying once it does | Essential — success and the paid tier arrive together, by design |
This comparison is published by OrderMAX, so take this section as a vendor pitch, not neutral advice — the rest of the page above it is not. OrderMAX is a separate free Shopify upsell app with no order cap and no revenue cap to trip, and no paid tier to graduate into, which sidesteps both trade-offs described above entirely. It doesn't match Selleasy's breadth of FBT placements or Essential's outcome-based pricing structure; it's a simpler tool for a store that wants upsells running with nothing to hit a limit on, ever.
Tier 2 — named third party, self-reported. AfterSell's aggregate merchant data reports an average 9.74% AOV lift from post-purchase upsell offers specifically. This is vendor-reported aggregate data, not an independent audit — treat it as directional.
Tier 3 — industry benchmark. McKinsey's widely cited analysis attributes roughly 35% of Amazon purchases to recommendation-driven cross-sells. This describes one platform at extreme scale and personalization depth; it is evidence the mechanism works broadly, not a forecast for any specific Shopify store.
What this evidence does not say: neither figure was measured on Selleasy or Essential specifically, and no independent study has run the two apps head-to-head on matched Shopify stores. The category evidence supports "upsell mechanics generally lift AOV" — it says nothing about which of these two apps lifts it more for your catalogue, or how quickly either free plan's cap would be reached on your own order volume. That gap is exactly why testing the free plan that fits your use case is worth more than reading a benchmark.
Neither wins outright — the two free plans are built on different logic. Selleasy is stronger if you want a free tier that renews every month regardless of whether the app itself drove sales. Essential is stronger if you'd rather never pay for an app that hasn't demonstrably worked. The right pick depends on which trade-off you'd rather live with.
Selleasy's free plan allows up to 50 orders per month, counting your store's total order volume, and it renews every month indefinitely. Essential's free plan allows up to $100 in additional revenue the app itself is credited with generating — it never expires on a calendar, only once that revenue threshold is reached.
Yes, but not on a schedule. As of 26 August 2026, Essential's own App Store listing describes its free plan as "Up to $100 additional revenue generated" — it expires only once the app has demonstrably produced that much attributed revenue for your store, whether that takes a week or a year.
As of 26 August 2026, Selleasy (Upsell & Cross Sell) shows 4.9 stars across 2,525 reviews on the Shopify App Store. Essential Upsell & Cross Sell shows 5.0 stars across 2,234 reviews. Both are well-established, high-volume listings in the upsell category.
Essential's paid tiers start at $9.99/mo, per its own listing, scaling up to $500/mo at its highest tier. The exact tier a store lands on depends on order volume and feature needs — Essential's listing does not break out every step of that ladder in public-facing detail.
Selleasy's paid tier starts at $9/mo once a store passes 50 total orders in a month, per its own listing. That fee unlocks continued use above the free cap; Selleasy's listing does not break out further named tiers beyond that starting price.
Because it is, in a sense — a store only loses the free plan once the app has proven it works. That's the point: Essential never charges a store the app hasn't yet helped. The trade-off is that success is exactly what starts the billing clock, which can feel counterintuitive the first time a store hits it.
Selleasy's free plan is more predictable at real volume, since its 50-orders-a-month cap renews indefinitely regardless of how well the upsell mechanic itself performs. Essential's $100 revenue cap can be reached almost immediately at high volume if the app is working well, pushing a fast-growing store into a paid tier sooner.
No. Selleasy's free plan counts your store's total order count, not orders the upsell app influenced — per its own listing, "your store's total order count will be considered." A store can lose its free plan from general sales growth alone, even if Selleasy itself drove none of it.
Yes — OrderMAX is a separate Shopify upsell app, also published by OrderMAX, the site hosting this comparison. It's free with no order cap, no revenue cap, and no paid tier to graduate into, though it doesn't match Selleasy's or Essential's specialty depth in their respective areas.
Read the full listings, current pricing, and merchant reviews directly on the Shopify App Store before you install anything.
Or try OrderMAX's free plan →