Nudge: Cart Upsells vs PairShelf
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 Nudge, Nov 2, 2026 for PairShelf.
The short answer
- Only Nudge lists a free plan. Paid plans start at $9/month for Nudge and $39/month for PairShelf.
- Nudge lists 2 features PairShelf’s listing doesn’t mention, including One-click add-ons, Product add-ons.
Head to head
Free
- · 20 interactions per calendar month
- · Choose primary and companion products
- · No percentage or per-order app fee
- · Optional saving on one companion
- · Up to 100 campaigns
Growth
- · Choose primary and companion products
- · No monthly interaction limit
- · No percentage or per-order app fee
- · Optional saving on one companion
- · Up to 100 campaigns
Starter
- · 100 active product pairs
- · 1–8 recommended products per pair
- · 3-day trial for eligible first installs
- · 50 AI suggestions per month
- · Basic views, clicks and adds analytics
- · No cart rules or A/B experiments
Growth
- · 200 AI suggestions per month
- · 500 active pairs and rules combined
- · Monthly or yearly billing
- · No A/B experiments or bulk actions
- · No overage charges
- · Product and cart recommendations
Pro
- · 2,000 active pairs and rules combined
- · 50/50 recommendation experiments
- · 600 AI suggestions per month
- · All Growth features
- · Bulk activate or pause up to 20 pairs
- · Monthly AI reset, including yearly plans
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureChoose a recommended product to go with a selected item and set its saving. The product block shows the suggestion and lets shoppers add it to the cart. Shopify applies the saving only when the qualifying product is present. Track add-on activity and attributed paid purchases in a focused dashboard. For USD stores using an Online Store theme. The discount covers one recommended item per order.
PairShelf lets you choose a trigger product and related items from your catalog, then display curated pairs on product pages or tag-matched cart recommendations. Review consented views, clicks, and adds retained for up to 30 days. Growth and Pro add source and placement breakdowns; Pro also includes 50/50 experiments and bulk actions.
- Choose a recommended add-on for a selected product.
- Show the add-on and its saving near the purchase controls.
- Let shoppers add the suggested item to their cart.
- Require the original product before the add-on discount applies.
- Curate product page pairings from your Shopify catalog.
- Show cart recommendations when selected product tags match.
- Review consented views, clicks, and adds retained for 30 days.
- Compare 50/50 pairing experiments on Pro.
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 |  Nudge | |
|---|---|---|
| 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 | Nudge | |
|---|---|---|
| App Store rating | Not published | Not published |
| App Store reviews | Not published | Not published |
| New reviews, 28 days | Not enough data | Not enough data |
| Reviewers a year or more in | Not enough data | Not enough data |
FAQ
Nudge and PairShelf: common questions
- Is Nudge or PairShelf cheaper?
- Only Nudge lists a free plan. Paid plans start at $9/month for Nudge and $39/month for PairShelf. 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?
- Nudge lists 2 the others don’t mention, such as One-click add-ons, Product add-ons. PairShelf lists 1 the others don’t mention, such as A/B testing. 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 Nudge, Nov 2, 2026 for PairShelf; 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 Nudge, Nov 2, 2026 for PairShelf. 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.