Size and fit finder by Prime AI
Virtual fitting software
E-commerce software
Fashion AI tools
- Features
- Ease of use
- Ease of management
- Quality of support
- Affordability
- Market presence
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What is Size and fit finder by Prime AI
Size and fit finder by Prime AI is a virtual fitting and size recommendation tool for apparel and footwear e-commerce. It helps shoppers select an appropriate size by using product data and shopper-provided inputs, and it is typically embedded on product detail pages. The product is used by online retailers and brands to reduce fit-related uncertainty and support conversion and returns-reduction workflows.
On-site size recommendation widget
The product is designed to be deployed directly in an online store experience to guide shoppers at the point of purchase. This supports common e-commerce use cases such as size selection on product pages and fit guidance during checkout. It aligns with how virtual fitting tools in this space are typically operationalized: as a lightweight front-end experience backed by sizing logic.
Uses product and shopper inputs
The solution centers on combining item-level sizing information with shopper-provided details to produce a recommended size. This approach can work across multiple apparel categories when the retailer maintains consistent size charts and product attributes. It also allows retailers to leverage existing catalog data rather than requiring specialized hardware or in-person measurement.
E-commerce integration orientation
The product is positioned for retail deployment, where integration with storefronts and product catalogs is a primary requirement. This makes it suitable for brands and retailers that want fit guidance without replacing their commerce platform. It also supports operational workflows where merchandising teams maintain sizing rules and product attributes over time.
Accuracy depends on data quality
Recommendation quality typically depends on the completeness and consistency of product measurements, size charts, and attribute tagging. If catalog data is missing or inconsistent across styles, the tool may provide less reliable guidance. Retailers may need ongoing data governance to keep recommendations aligned with new assortments.
Limited transparency of sizing logic
As with many AI-assisted fit tools, the underlying logic and confidence levels may not be fully transparent to merchants and shoppers. This can make it harder to troubleshoot edge cases such as vanity sizing, brand-to-brand variation, or atypical fits. Some organizations may require additional reporting or explainability to support customer service and merchandising decisions.
Implementation and change management effort
Deploying a fit finder commonly requires integration work, UI placement decisions, and alignment with merchandising and customer support processes. Retailers may need to test across categories and regions to ensure sizing guidance matches local expectations. Ongoing tuning can be required as new products, size scales, and returns patterns emerge.
Plan & Pricing
| Plan | Price | Key features & notes |
|---|---|---|
| Lite | Free (install via Shopify; "100% Free") | Plug-and-play Shopify app, single size model across full catalogue, no coding required, immediate impact on returns/conversion; Virtual Try-On (VTO) is an optional paid add-on. |
| Pro | Custom pricing — Request a demo / Contact sales | Fully custom predictive AI (product- & colour-level models), learns from sales/returns/reviews, supports predictive zero-input sizing, dedicated account manager, works on any platform (Shopify Plus, Magento, etc.). Pricing not published; contact Prime AI. |
Usage-based add-on — Virtual Try On (credits) Pricing model: Pay-as-you-go (credits) Example costs: 30 Credits – $12; 100 Credits – $40; 300 Credits – $120. Notes: Credits expire after 60 days; unused credits become rollover credits after 30 days (then expire after additional 30 days). Available via Shopify install; larger/custom bundles available by contacting Prime AI.
| Shoe Size Finder Plan | Price | Key features & notes |
|---|---|---|
| Starter | £49 per month (+ £249 integration fee) | Up to 50k page views, basic dashboard, email support, free integration listed. |
| Growth | £299 per month (+ £499 integration fee) | Up to 300k page views, account manager, sales & refund tracking, automated learning & adjustments. |
| 100% Customisable | POA (contact sales) | Unlimited page views, APIs, A/B testing, fully custom. |
