Smart Size Chart & Size Guide review

Smart Size Chart & Size Guide is a size chart and fit quiz app from SmartSize, a developer based in Nuernberg, Germany, rated 4.9 from 151 reviews when we checked. Its free plan covers 2 charts with pre-made templates for men, women, kids and pets, AI chart creation from an image, automatic unit conversion and international sizing, and it does not add a watermark. Starter at $9 a month raises the limit to 10 charts and adds multi-tab charts, a true-to-size fit scale, AI translations and priority support, and Growth at $12 a month removes the chart limit. Pro 100 at $19 a month adds the AI Find my size quiz for 100 users a month, with fit finders for men, women, kids and pets and AI plus rule-based matching. The listing names 25+ languages and an MCP connection for AI assistants. Smart Size Chart ranks third because its entry price is higher than the two apps above it and the fit quiz sits on a usage-capped tier.

Who it is for

stores that want an AI fit quiz across many languages

Price

Free plan with 2 charts; Starter $9, Growth $12, Pro 100 $19 a month.

Starter $9 / month or $86.40/year and save 20%
Quoted from the vendor pricing page on November 13, 2026.

Key features

• Free plan covers 2 size charts with no watermark
• AI builds a size guide from a photo or screenshot of an existing chart
• Growth at $12 a month removes the chart limit
• Pro 100 at $19 a month adds the AI Find my size quiz for 100 users a month
• Size charts and size quiz in 25+ languages with AI translation and unit conversion

Strengths and weaknesses

• Strength: 4.9 rating from 151 reviews at check time
• Strength: Free plan has no watermark
• Strength: Shoppers answer the fit quiz once and are remembered on every product
• Weakness: Free plan allows only 2 charts
• Weakness: The fit quiz starts at $19 a month and the entry tier covers 100 users a month
• Weakness: Entry paid plan costs $9 a month, more than MP Size Chart or Kiwi

Key facts

• Free plan: Yes, 2 size charts, no watermark
• Paid plans: Starter $9, Growth $12, Pro 100 $19 a month
• Free trial: 14 days on paid plans
• Shopify App Store rating: 4.9 from 151 reviews at check time
• Developer location: Nuernberg, Germany

Where it ranks

Smart Size Chart & Size Guide is No. 3 in our Best Shopify Size Chart Apps verdict.