Post Purchase Upsell—ReSell vs Upsell & Cross Sell — BoostUp
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Nov 9, 2026 for Post Purchase Upsell—ReSell, Oct 13, 2026 for Upsell & Cross Sell.
The short answer
- Only Upsell & Cross Sell lists a free plan. Paid plans start at $0.99/month for Post Purchase Upsell—ReSell and $9/month for Upsell & Cross Sell.
- Post Purchase Upsell—ReSell lists 6 features Upsell & Cross Sell’s listing doesn’t mention, including A/B testing, AI recommendations, Checkout upsell.
Head to head
- United States
- United Kingdom
- Germany
Momentum
New reviews each month
Review pace is the clearest public read on how fast an app is winning new merchants.
Flex
- · 100 store orders free/mo
- · 24/7 chat, email, phone & video calls
- · 5% on upsell revenue
- · Free cart upsell add-on
Standard
- · 24/7 chat, email, phone & video calls
- · 250 store orders included/mo
- · Commission-free upsells
- · Free cart upsell add-on
- · Then $0.20 per order
Professional
- · 1,000 store orders included/mo
- · 24/7 chat, email, phone & video calls
- · Commission-free upsells
- · Free cart upsell add-on
- · Then $0.20 per order
Unlimited
- · 24/7 chat, email, phone & video calls
- · Commission-free upsells
- · Free cart upsell add-on
- · Lifetime price lock
- · No usage charges ever
- · Unlimited store orders
Starter Tier I
- · All upsell & cross-sell widgets
- · Analytics dashboard
- · Chat, email & Zoom support
- · Free setup call
- · Frequently bought together bundles
- · Post-purchase & thank-you upsells
Starter Tier II
- · All upsell & cross-sell widgets
- · Analytics dashboard
- · Chat, email & Zoom support
- · Free setup call
- · Frequently bought together bundles
- · Post-purchase & thank-you upsells
Starter Tier III
- · All upsell & cross-sell widgets
- · Analytics dashboard
- · Chat, email & Zoom support
- · Free setup call
- · Frequently bought together bundles
- · Post-purchase & thank-you upsells
Starter Tier IV
- · All upsell & cross-sell widgets
- · Analytics dashboard
- · Chat, email & Zoom support
- · Free setup call
- · Frequently bought together bundles
- · Post-purchase & thank-you upsells
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureGet an ultimate sales boost by reconverting buyers after payment: a post purchase offer before the thank you page, upsell bundles on the checkout page, upsell & cross sell with related products and recommended products. A post checkout upsell and order status page upsell keep selling, and a multi-product downsell follows a declined offer.
BoostUp offers high-converting one-click upsells and post-purchase offers to maximize your revenue. Easily create Frequently Bought Together bundles and related product add-ons to instantly increase AOV. Our In-Cart upsell features smart, automatic recommendations to drive impulse buys.
- Checkout and post-purchase one click upsell and automatic cross-sell offers
- Offer customers to make a new purchase with Thank you page upsell promotions
- Upselling and cross-selling widgets to improve your checkout and Thank you page
- Personalized recommendations or products that are frequently bought together
- Cross-sell product add-ons on product page embedded as List, Grid.
- Show Amazon & List style "Frequently Bought Together" bundle widgets.
- Display dynamic Cart Upsell Funnels and Cart Drawer Add-ons.
- Offer one-click Post-purchase upsells and Thank You page deals.
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 |  Post Purchase Upsell—ReSell | Upsell & Cross Sell |
|---|---|---|
| Detected stores | 53 | 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 | Apparel & Accessories, Home & Garden, Health & Beauty | Not published |
| Top store countries | United States, United Kingdom, Germany | Not published |
Reviews
| Measure | Post Purchase Upsell—ReSell | Upsell & Cross Sell |
|---|---|---|
| App Store rating | 5.0 ★ | Not published |
| App Store reviews | 72 | Not published |
| New reviews, 28 days | 2 | Not enough data |
| Reviewers a year or more in | 31% | Not enough data |
Pricing
| Measure | Post Purchase Upsell—ReSell | Upsell & Cross Sell |
|---|---|---|
| Free plan | Not listed | Yes |
| Lowest paid monthly plan | $0.99/month(ahead) | $9/month |
| Longest free trial | 30 days | 30 days |
| Plans listed | 4 | 4 |
Listing
| Measure | Post Purchase Upsell—ReSell | Upsell & Cross Sell |
|---|---|---|
| Shopify category rank | #90(ahead) | #993 |
| Shopify App Charts | #20 on Featured by Shopify in Upsell and cross-sell | Not on this week’s charts |
| Built for Shopify | Yes | No |
| Launched | Jun 28, 2022 | Jan 8, 2026 |
| Languages | 4 | 1 |
| Developer | DevIT | Webiska |
FAQ
Post Purchase Upsell—ReSell and Upsell & Cross Sell: common questions
- Is Post Purchase Upsell—ReSell or Upsell & Cross Sell cheaper?
- Only Upsell & Cross Sell lists a free plan. Paid plans start at $0.99/month for Post Purchase Upsell—ReSell and $9/month for Upsell & Cross Sell. 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?
- Post Purchase Upsell—ReSell lists 6 the others don’t mention, such as A/B testing, AI recommendations, Checkout upsell, Drag-and-drop editor. Upsell & Cross Sell lists 4 the others don’t mention, such as Cart upsell, Conversion rates, Pop-ups, Product page upsell. 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 Nov 9, 2026 for Post Purchase Upsell—ReSell, Oct 13, 2026 for 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 Nov 9, 2026 for Post Purchase Upsell—ReSell, Oct 13, 2026 for 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.