AddOnce vs Super Upsell & Cross‑Sell
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Oct 14, 2026 for AddOnce, Oct 20, 2026 for Super Upsell & Cross‑Sell.
The short answer
- Only Super Upsell & Cross‑Sell lists a free plan.
- Super Upsell & Cross‑Sell lists 7 features AddOnce’s listing doesn’t mention, including Cart drawer, Cart upsell, Checkout upsell.
Head to head
Momentum
New reviews each month
Review pace is the clearest public read on how fast an app is winning new merchants.
AddOnce Unlimited
- · 14-Day Full Access Trial
- · Attach to unlimited products
- · Checkbox & dropdown displays
- · Future updates included
- · Native cart lines
- · Native products & variants
Free
- · A/B Testing
- · Cart Page & Cart Drawer
- · Checkout Page & Thank You Page
- · Post Purchase Widget
- · Product & Collection Page
- · Up to 100 orders/month
Growth
- · A/B Testing
- · Cart Page & Cart Drawer
- · Checkout Page & Thank You Page
- · Post Purchase Widget
- · Priority Support
- · Product & Collection Page
Pro
- · A/B Testing
- · Cart Page & Cart Drawer
- · Checkout Page & Thank You Page
- · Post Purchase Widget
- · Priority Support
- · Product & Collection Page
Unlimited
- · A/B Testing
- · Cart Page & Cart Drawer
- · Checkout Page & Thank You Page
- · Post Purchase Widget
- · Priority Support
- · Product & Collection Page
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureAddOnce lets merchants present optional products and services directly on the product page. Create a Companion Product once, then attach it to any product where it belongs. Because AddOnce uses native products, inventory, variants, and fulfillment continue to work as expected. Customers choose optional add-ons before adding to cart, and each item is added as its own native cart line.
Create upsell and cross-sell experiences throughout the shopping journey. Display relevant product recommendations at key customer touchpoints, including product pages, collections, cart, checkout, thank you, and post-purchase pages. Customize placement, targeting, and appearance settings to match your store's merchandising strategy and customer experience.
- Add optional add-ons with native Shopify products
- Create once. Attach to unlimited products.
- Customers add each selection as independent Shopify cart lines
- Automatically supports single- and multi-variant companion products
- Upsell and cross-sell recommendations
- Product, cart, checkout, and post-purchase placements
- Related and complementary products
- Custom targeting and recommendation rules
All the numbers
Every figure, side by side
A green dot marks the app ahead on a measured figure. Estimates, gaps and apps that leave no storefront trace never take the lead.
Adoption
| Measure |  AddOnce |  Super Upsell & Cross‑Sell |
|---|---|---|
| Detected stores | Not published | Not published |
| Net store change, 28 days | 0 | 0 |
| Stores added, 28 days | Not enough data | Not enough data |
| Big-brand share | Not enough data | Not enough data |
| Top store categories | Not published | Not published |
| Top store countries | Not published | Not published |
Reviews
| Measure | AddOnce | Super Upsell & Cross‑Sell |
|---|---|---|
| App Store rating | Not published | 5.0 ★ |
| App Store reviews | Not published | 11 |
| New reviews, 28 days | Not enough data | Not enough data |
| Reviewers a year or more in | Not enough data | Not enough data |
Pricing
| Measure | AddOnce | Super Upsell & Cross‑Sell |
|---|---|---|
| Free plan | Not listed | Yes |
| Lowest paid monthly plan | No monthly plan listed | $7.99/month |
| Longest free trial | Not listed | 7 days |
| Plans listed | 1 | 4 |
Listing
| Measure | AddOnce | Super Upsell & Cross‑Sell |
|---|---|---|
| Shopify category rank | #663 | #232(ahead) |
| Shopify App Charts | Not on this week’s charts | Not on this week’s charts |
| Built for Shopify | No | No |
| Launched | Jul 31, 2026 | Jul 7, 2026 |
| Languages | 1 | 1 |
| Developer | Bison 46 Labs | TechnoThrone |
FAQ
AddOnce and Super Upsell & Cross‑Sell: common questions
- Is AddOnce or Super Upsell & Cross‑Sell cheaper?
- Only Super Upsell & Cross‑Sell lists a free plan. Shoplist compares base prices only between monthly plans in the same currency; usage charges and annual plans vary, so check each plan’s limits.
- What features does each app list that the other doesn’t?
- AddOnce lists 2 the others don’t mention, such as Frequently bought together, Warranties. Super Upsell & Cross‑Sell lists 7 the others don’t mention, such as Cart drawer, Cart upsell, Checkout upsell, Custom CSS. A feature missing from a listing may still be supported; this compares what each App Store listing says.
- Where does this comparison’s data come from?
- Shoplist crawls Shopify storefronts to detect which apps each store runs, and reads each app’s Shopify App Store listing for reviews, pricing, features and integrations. Store counts are as of Oct 14, 2026 for AddOnce, Oct 20, 2026 for Super Upsell & Cross‑Sell; estimated figures are labeled.
How Shoplist compares apps
Store counts come from Shoplist’s crawl of Shopify storefronts, which detects the apps each store runs; they are as of Oct 14, 2026 for AddOnce, Oct 20, 2026 for Super Upsell & Cross‑Sell. Reviews, ratings, plans, features and integrations come from each app’s Shopify App Store listing. 28-day figures are labeled when estimated, and a figure that is missing or estimated never decides who leads. Read the methodology.