OfferEngine by Vasta vs Post Purchase Upsell—ReSell
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Oct 13, 2026 for OfferEngine by Vasta, Nov 9, 2026 for Post Purchase Upsell—ReSell.
The short answer
- On the Shopify App Store: OfferEngine by Vasta 5.0 from 2 reviews and Post Purchase Upsell—ReSell 5.0 from 72 reviews.
- Only OfferEngine by Vasta lists a free plan. Paid plans start at $39/month for OfferEngine by Vasta and $0.99/month for Post Purchase Upsell—ReSell.
- OfferEngine by Vasta lists 15 features Post Purchase Upsell—ReSell’s listing doesn’t mention, including Bundles, Click-through rates, Conversion rates.
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.
Free
- · ONLY For Partner Stores & In Development
Growth
- · A/B testing
- · Global segment flows
- · Personalization
- · Up to 500 orders/month
Pro
- · A/B/C/D testing
- · Advanced funnels
- · Full merchandising controls
- · Up to 1,000 orders
Scale
- · Multivariate testing
- · Scale volume
- · Subscription upsells
- · Up to 2,500 orders/month
Enterprise
- · All premium features
- · Priority onboarding and support
- · Unlimited orders/month
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
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureOfferEngine displays targeted product offers right after checkout, when customers are most ready to buy again. Build visual upsell funnels with a no-code editor, set trigger rules by product, category, or all orders, and run A/B tests to find the best-converting offer. Every accepted upsell is added to the original order with a custom discount, no extra payment step required.
Get 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.
- Visual Funnel Builder - design multi-step upsell flows with no code required
- Smart Triggers - target offers by product, segment, or all orders
- A/B Testing - run two deals variants and scale the one that converts most
- 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
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 |  OfferEngine by Vasta |  Post Purchase Upsell—ReSell |
|---|---|---|
| Detected stores | Not published | 53 |
| 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 | Apparel & Accessories, Home & Garden, Health & Beauty |
| Top store countries | Not published | United States, United Kingdom, Germany |
Reviews
| Measure | OfferEngine by Vasta | Post Purchase Upsell—ReSell |
|---|---|---|
| App Store rating | 5.0 ★ | 5.0 ★ |
| App Store reviews | 2 | 72(ahead) |
| New reviews, 28 days | Not enough data | 2 |
| Reviewers a year or more in | Not enough data | 31% |
Pricing
| Measure | OfferEngine by Vasta | Post Purchase Upsell—ReSell |
|---|---|---|
| Free plan | Yes | Not listed |
| Lowest paid monthly plan | $39/month | $0.99/month(ahead) |
| Longest free trial | Not listed | 30 days |
| Plans listed | 5 | 4 |
Listing
| Measure | OfferEngine by Vasta | Post Purchase Upsell—ReSell |
|---|---|---|
| Shopify category rank | #424 | #90(ahead) |
| Shopify App Charts | Not on this week’s charts | #20 on Featured by Shopify in Upsell and cross-sell |
| Built for Shopify | No | Yes |
| Launched | Jun 29, 2026 | Jun 28, 2022 |
| Languages | 1 | 4 |
| Developer | Vasta Inc | DevIT |
FAQ
OfferEngine by Vasta and Post Purchase Upsell—ReSell: common questions
- Is OfferEngine by Vasta or Post Purchase Upsell—ReSell cheaper?
- Only OfferEngine by Vasta lists a free plan. Paid plans start at $39/month for OfferEngine by Vasta and $0.99/month for Post Purchase Upsell—ReSell. Shoplist compares base prices only between monthly plans in the same currency; usage charges and annual plans vary, so check each plan’s limits.
- Which has better reviews, OfferEngine by Vasta or Post Purchase Upsell—ReSell?
- On the Shopify App Store: OfferEngine by Vasta 5.0 from 2 reviews and Post Purchase Upsell—ReSell 5.0 from 72 reviews.
- What features does each app list that the other doesn’t?
- OfferEngine by Vasta lists 15 the others don’t mention, such as Bundles, Click-through rates, Conversion rates, Free gifts. Post Purchase Upsell—ReSell lists 2 the others don’t mention, such as Drag-and-drop editor, One-click add-ons. 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 13, 2026 for OfferEngine by Vasta, Nov 9, 2026 for Post Purchase Upsell—ReSell; 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 13, 2026 for OfferEngine by Vasta, Nov 9, 2026 for Post Purchase Upsell—ReSell. 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.