Nacelle Sales vs SellAI ‑ AI Sales Assistant
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Oct 13, 2026.
The short answer
- Paid plans start at $79/month for Nacelle Sales and $25/month for SellAI.
- SellAI lists 6 features Nacelle Sales’s listing doesn’t mention, including Cart upsell, Click-through rates, Custom rules.
Head to head
Starter
- · 0 to 500 Orders
- · Cart-aware suggestions
- · Instant answers to product questions
- · Product recommendations in chat
- · Set your brand voice tone
- · Shop by photo upload
Growth
- · 501 to 2,500 Orders
- · Cart-aware suggestions
- · Instant answers to product questions
- · Product recommendations in chat
- · Set your brand voice tone
- · Shop by photo upload
Scale
- · 2,501 to 10,000 Orders
- · Cart-aware suggestions
- · Instant answers to product questions
- · Product recommendations in chat
- · Set your brand voice tone
- · Shop by photo upload
Basic
- · 1,000 Chatbot Responses/Month
- · Basic Analytics Dashboard
- · Email Support
- · Shipping & Returns Q&A
- · Smart Product Recommendation Engine
Growth
- · 50,000 Chatbot Responses
- · Advanced Analytics & Conversion Reports
- · Cart Abandonment Prevention & Optimizati
- · Cross-Selling & Upsell Recommendations
- · Priority Business Day Support
Enterprise
- · 1,000,000 Chatbot Responses/Month
- · 24/7 Priority Support
- · API Access & Webhook Support
- · Custom AI Training for Your Brand
- · Custom Integration & Onboarding
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureNacelle Sales adds an AI chat widget to your storefront. Shoppers ask questions, get real product recommendations, and add items to cart — all without leaving the page. The assistant knows your full catalog, your store policies, and what's already in the shopper's cart. Shoppers can even send a photo and get back visually matched products from your catalog. You set the brand voice once.
SellAI helps e-commerce stores deliver personalized shopping experiences directly on their storefront. Through our intelligent RAG-powered widget, Sally acts as a dedicated sales assistant that understands customer intent, answers product questions in real-time, and offers smart cross-sell recommendations based on context.
- Product recommendations in chat
- Instant answers to product questions
- Shop by photo upload.
- Cart-aware suggestions. The assistant sees what's in the cart and factors it in
- Provide real-time product recommendations based on customer shopping intent.
- Engage visitors instantly with an intelligent sales assistant on storefront.
- Activate effortlessly inside your Shopify Theme Editor with a single click.
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 |  Nacelle Sales |  SellAI |
|---|---|---|
| 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 | Nacelle Sales | SellAI |
|---|---|---|
| App Store rating | 5.0 ★ | Not published |
| App Store reviews | 1 | Not published |
| New reviews, 28 days | Not enough data | Not enough data |
| Reviewers a year or more in | Not enough data | Not enough data |
Pricing
| Measure | Nacelle Sales | SellAI |
|---|---|---|
| Free plan | Not listed | Not listed |
| Lowest paid monthly plan | $79/month | $25/month(ahead) |
| Longest free trial | 14 days | 14 days |
| Plans listed | 3 | 3 |
Listing
| Measure | Nacelle Sales | SellAI |
|---|---|---|
| Shopify category rank | Not enough data | #1176 |
| Shopify App Charts | Not on this week’s charts | Not on this week’s charts |
| Built for Shopify | No | No |
| Launched | Jun 5, 2026 | Jun 18, 2026 |
| Languages | 1 | 2 |
| Developer | Nacelle, Inc. | sellAI.chat |
FAQ
Nacelle Sales and SellAI: common questions
- Is Nacelle Sales or SellAI cheaper?
- Paid plans start at $79/month for Nacelle Sales and $25/month for SellAI. 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?
- Nacelle Sales lists 2 the others don’t mention, such as Drag-and-drop editor, One-click add-ons. SellAI lists 6 the others don’t mention, such as Cart upsell, Click-through rates, Custom rules, Multi-language. 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; 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. 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.