Nereus Upsell Lab vs Rapid Bundles & Upsell app
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 Nereus Upsell Lab, Nov 8, 2026 for Rapid Bundles & Upsell.
The short answer
- Paid plans start at $14.99/month for Nereus Upsell Lab and $15/month for Rapid Bundles & Upsell.
- Rapid Bundles & Upsell lists 50 features Nereus Upsell Lab’s listing doesn’t mention, including A/B testing, Analytics, Automations.
Head to head
- United States
- France
- United Kingdom
Momentum
New reviews each month
Review pace is the clearest public read on how fast an app is winning new merchants.
Starter
- · Advanced analytics
- · All bundle types (Volume, BOGO, Mix & Ma
- · Up to $1K bundle revenue/mo
Growth
- · Advanced analytics
- · All bundle types
- · Up to $10K bundle revenue/mo
Pro
- · Advanced analytics
- · All bundle types
- · Up to $50K bundle revenue/mo
Enterprise
- · Advanced analytics
- · All bundle types
- · Unlimited bundle revenue
Forever free
- · A/B testing
- · Basic support
- · Build your own box (BYOB)
- · Bundle Subscription
- · Combo Bundle & Mix and match
- · Unlimited bundles & Post purchase upsell
Starter
- · 24/7 chat & email support
- · A/B testing & Color swatch
- · Build your own box (BYOB)
- · Color swatch, Free gifts & Upsells
- · Mix and match different products
- · Progress bar & price rounding
Pro
- · 24/7 chat & email support
- · Advanced A/B testing & Color swatch
- · Build your own box (BYOB)
- · Mix and match different products
- · Mix and match different products
- · Progress bar & price rounding
Elite
- · API and MCP
- · Advanced A/B testing with AI
- · Entreprise custom features
- · Exclusive support 7/7
- · Unlimited revenue generated and features
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureNereus Bundles helps merchants boost sales through three proven bundle types: Volume Discounts (buy more, save more), BOGO deals (buy one product, get another discounted), and Mix & Match (combine products into a set). Merchants create bundles in minutes using a simple three-step wizard with live preview.
A/B test your product bundles deals, quantity discount, BOGO (Buy One Get One FREE), upsells, subscription bundles, tiered pricing, Volume discount, progress bar bundles, tiered discount, Bundle & Bulk, frequently bought together & Quantity Breaks.
- Three bundle types: Volume Discounts, BOGO, and Mix & Match
- Live preview shows exactly how bundles appear before publishing
- Built-in analytics track impressions, conversions, and top bundles
- Real-time analytics track impressions, clicks, conversions, and revenue
- Boost your profit with bundles, cross-sell, sweet upsells, coupon & BOGO offers
- No-coding required Chose you products, add bundles, volume discounts & publish
- Integrates with any theme. Select your product, add quantity breaks & publish
- Full customization: block size, colors, Text type, block background, font style
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 |  Nereus Upsell Lab |  Rapid Bundles & Upsell |
|---|---|---|
| Detected stores | Not published | 2,778 |
| Net store change, 28 days | 0 | −24 |
| Stores added, 28 days | Not enough data | 55 |
| Big-brand share | Not enough data | 7% |
| Top store categories | Not published | Health & Beauty, Apparel & Accessories, Home & Garden |
| Top store countries | Not published | United States, France, United Kingdom |
Reviews
| Measure | Nereus Upsell Lab | Rapid Bundles & Upsell |
|---|---|---|
| App Store rating | Not published | 5.0 ★ |
| App Store reviews | Not published | 1,624 |
| New reviews, 28 days | Not enough data | 32 |
| Reviewers a year or more in | Not enough data | 4% |
Pricing
| Measure | Nereus Upsell Lab | Rapid Bundles & Upsell |
|---|---|---|
| Free plan | Not listed | Not listed |
| Lowest paid monthly plan | $14.99/month(ahead) | $15/month |
| Longest free trial | 14 days | 7 days |
| Plans listed | 4 | 4 |
Listing
| Measure | Nereus Upsell Lab | Rapid Bundles & Upsell |
|---|---|---|
| Shopify category rank | #1179 | #3 |
| Shopify App Charts | Not on this week’s charts | #1 in Upsell and bundles - Other |
| Built for Shopify | No | Yes |
| Launched | Mar 16, 2026 | Jan 3, 2022 |
| Languages | 1 | 1 |
| Developer | Nereus Data | Rapid Bundle | Upsells | Cart Drawer | Subscriptions |
FAQ
Nereus Upsell Lab and Rapid Bundles & Upsell: common questions
- Is Nereus Upsell Lab or Rapid Bundles & Upsell cheaper?
- Paid plans start at $14.99/month for Nereus Upsell Lab and $15/month for Rapid Bundles & Upsell. 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?
- Nereus Upsell Lab lists 11 the others don’t mention, such as A/B testing, Cart upsell, Checkout upsell, Click-through rates. Rapid Bundles & Upsell lists 50 the others don’t mention, such as A/B testing, Analytics, Automations, Banners. 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 Nereus Upsell Lab, Nov 8, 2026 for Rapid Bundles & Upsell; 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 Nereus Upsell Lab, Nov 8, 2026 for Rapid Bundles & Upsell. 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.