Popsize vs Stylii
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Oct 14, 2026.
The short answer
- Only Popsize lists a free plan. Paid plans start at $25/month for Popsize and $99/month for Stylii.
- Popsize lists 25 features Stylii’s listing doesn’t mention, including AI recommendations, Collection page, Conversion tracking.
Head to head
Free
- · 1,000 size recommendations per month
Discovery
- · 12,500 size recommendations per month
Lite
- · 25,000 size recommendations per month
Premium
- · 75,000 size recommendations per month
Pro
- · AI size recommendations
- · Body measurement storage
- · Multi-language support
- · Style preference tracking
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featurePopsize solves one of fashion e-commerce’s biggest challenges: sizing uncertainty. By combining our proprietary AI models, real shopper profiles and brand-specific data, we deliver personalized size recommendations that reduce return rates and improve the shopping experience.
Stylii helps customers find their size when shopping online. Using AI, the app estimates body measurements from simple inputs without manual measuring. Customers can save their measurements and style preferences. When browsing products, a chat widget provides personalized size guidance. Merchants add the widget to product pages using theme blocks. No coding required.
- AI-driven size recommendations
- Real consumer fit intelligence
- Seamless product page integration
- Interactive chat widget for personalized size guidance on product pages
- AI-powered body measurement estimation from simple customer inputs
- Save customer measurements and style preferences for future visits
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 |  Popsize |  Stylii |
|---|---|---|
| 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 | Popsize | Stylii |
|---|---|---|
| App Store rating | Not published | Not published |
| App Store reviews | Not published | Not published |
| New reviews, 28 days | Not enough data | Not enough data |
| Reviewers a year or more in | Not enough data | Not enough data |
FAQ
Popsize and Stylii: common questions
- Is Popsize or Stylii cheaper?
- Only Popsize lists a free plan. Paid plans start at $25/month for Popsize and $99/month for Stylii. 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?
- Popsize lists 25 the others don’t mention, such as AI recommendations, Collection page, Conversion tracking, Custom CSS. Stylii lists 1 the others don’t mention, such as Custom layouts. 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 14, 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 14, 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.