Nosto | AI Search & Discovery vs PA DiscoveryOS
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Nov 8, 2026.
The short answer
- Nosto is detected on 542× as many Shopify stores as PA DiscoveryOS: 1,084 vs 2 as of Nov 8, 2026.
- Nosto lists 25 features PA DiscoveryOS’s listing doesn’t mention, including AI insights, Autocomplete, Cart drawer.
Head to head
Product Recommendations, Merchandising, A/B Testing & more.
- United States
- United Kingdom
- France
- United Kingdom
- United States
Momentum
New reviews each month
Review pace is the clearest public read on how fast an app is winning new merchants.
Free
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureWe help online brands transform the commerce experience by enriching and connecting customer, product, and content data so they can deliver personalized experiences at scale. This is done through our AI-powered Commerce Experience Platform made up of intuitively designed tools that increase online revenue through end-to-end commerce experience management.
Upgrade your Shopify Plus store by seamlessly integrating PA DiscoveryOS. Our proprietary Adaptive Transformer Search combines vector and keyword tech, using live model A/B testing to guarantee optimal results and flexible ongoing optimization. Easily manage complex catalogs with semantic merchandising, automate SEO pages, and unlock rich onsite retail media.
- Site Search. Powerful, personalized, AI search to boost product discovery
- Personalization. Make the experience unique for every single shopper every time
- Merchandising. Total control over product rankings within all discovery pillars
- Content. Personalized content and authentic UGC to increase conversions
- Adaptive Transformer Search Hybrid Vector + Keyword Search with live A/B testing
- Generate static SEO pages for any attribute combo to capture long-tail traffic.
- Session-Based Intent Drive conversion with 1:1 personalization based on real-tim
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 |  Nosto |  PA DiscoveryOS |
|---|---|---|
| Detected stores | 1,084(ahead) | 2 |
| Net store change, 28 days | −11 | 0 |
| Stores added, 28 days | 12 | Not enough data |
| Big-brand share | 58% | Not enough data |
| Top store categories | Apparel & Accessories, Health & Beauty, Home & Garden | Health & Beauty, Sporting Goods |
| Top store countries | United States, United Kingdom, France | United Kingdom, United States |
Reviews
| Measure | Nosto | PA DiscoveryOS |
|---|---|---|
| App Store rating | 4.7 ★ | Not published |
| App Store reviews | 61 | Not published |
| New reviews, 28 days | 0 | Not enough data |
| Reviewers a year or more in | Not enough data | Not enough data |
Pricing
| Measure | Nosto | PA DiscoveryOS |
|---|---|---|
| Free plan | Not listed | Not listed |
| Lowest paid monthly plan | No monthly plan listed | No monthly plan listed |
| Longest free trial | Not listed | Not listed |
| Plans listed | 1 | Not published |
Listing
| Measure | Nosto | PA DiscoveryOS |
|---|---|---|
| Shopify category rank | #59(ahead) | #119 |
| Shopify App Charts | #8 in Search and filters | Not on this week’s charts |
| Built for Shopify | No | No |
| Launched | Aug 26, 2014 | Apr 14, 2026 |
| Languages | 2 | 1 |
| Developer | Nosto Solutions Ltd | Particular Audience |
FAQ
Nosto and PA DiscoveryOS: common questions
- Which is more popular, Nosto or PA DiscoveryOS?
- Nosto is detected on 542× as many Shopify stores as PA DiscoveryOS: 1,084 vs 2 as of Nov 8, 2026.
- What features does each app list that the other doesn’t?
- Nosto lists 25 the others don’t mention, such as AI insights, Autocomplete, Cart drawer, Cart upsell. PA DiscoveryOS lists 2 the others don’t mention, such as Custom dashboards, Filter usage. 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 8, 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 Nov 8, 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.