True Fit: AI Size Guidance review

True Fit is the enterprise option in this list. Instead of building charts, it brings AI size and fit guidance to the product page: an AI shopping agent answers questions about fit, fabric and style, and personalized size recommendations draw on real-world fit data that combines product, shopper, purchase and return information. The single True Fit Standard plan costs $1,000 a month and covers up to 150k annual orders, with agentic and form-based size recommendations, on-demand insight reporting, a knowledge base and access to customer success and support. The listing names integrations with Loop Returns, Tapcart and Shopify Checkout. It had 23 reviews at a 4.5 rating at check time. True Fit ranks ninth on this site's weights because value counts for 35% of the score, and at $1,000 a month it costs more than a year of the most expensive plan of any other app here.

Who it is for

large apparel and footwear retailers

Price

True Fit Standard $1,000 a month, covering up to 150k annual orders.

True Fit Standard $1,000 / month Features Covers up to 150k annual orders
Quoted from the vendor pricing page on November 13, 2026.

Key features

• AI shopping agent answers fit, size, fabric and style questions on the product page
• Personalized size recommendations based on real-world fit data
• Fit intelligence combines product, shopper, purchase and return data
• Standard plan covers up to 150k annual orders with agentic and form-based recommendations
• Works with Loop Returns, Tapcart and Shopify Checkout

Strengths and weaknesses

• Strength: Recommendations draw on purchase and return data, not only charts
• Strength: Includes access to customer success and support
• Strength: 4.5 rating from 23 reviews at check time
• Weakness: $1,000 a month, far above every other app here
• Weakness: No free plan or free trial listed
• Weakness: Not a size chart builder, so stores still need charts elsewhere

Key facts

• Free plan: No
• Paid plan: True Fit Standard $1,000 a month
• Order cap: Up to 150k annual orders
• Shopify App Store rating: 4.5 from 23 reviews at check time

Where it ranks

True Fit: AI Size Guidance is No. 9 in our Best Shopify Size Chart Apps verdict.