BF Size Chart & Size Guide review

BF Size Chart & Size Guide, from Relentless Apps and previously called Best Fit Size Charts, is a plain size chart builder priced by chart count. The free Basic plan creates 3 charts that can connect to unlimited products, with cm and inch conversion, custom text boxes, uploaded images and measurement guides, and it lists no Powered by watermark. Starter at $2.99 a month raises the limit to 10 charts and adds link placement next to the size label, multiple charts per product and chart export and import. Premium at $5.99 a month allows up to 100 charts and Unlimited at $11.99 a month removes the cap, and all paid plans are free for development stores. The listing covers apparel, shoe and ring size charts and integrations with Vajro and VO Product Options. It ranks fourth because it lists no size recommender or fit quiz, so it suits stores that only need clear tables.

Who it is for

stores that need many charts on a small budget

Price

Free plan with 3 charts; Starter $2.99, Premium $5.99, Unlimited $11.99 a month.

Starter Plan $2.99 / month
Quoted from the vendor pricing page on November 13, 2026.

Key features

• Free plan covers 3 size charts connected to unlimited products
• No Powered by watermark on the free plan
• Starter at $2.99 a month allows 10 charts, multiple charts per product and CSV export and import
• Premium at $5.99 a month allows up to 100 charts
• Charts assigned by collections and product tags, with cm and inch conversion

Strengths and weaknesses

• Strength: Up to 100 charts for $5.99 a month
• Strength: Paid plans are free for development stores
• Strength: 4.7 rating from 132 reviews at check time
• Weakness: No AI size recommender listed
• Weakness: Admin listed in English only
• Weakness: Unlimited charts need the $11.99 plan

Key facts

• Free plan: Yes, 3 charts on unlimited products
• Paid plans: Starter $2.99, Premium $5.99, Unlimited $11.99 a month
• Free trial: 14 days on paid plans
• Shopify App Store rating: 4.7 from 132 reviews at check time
• Launched: October 1, 2018

Where it ranks

BF Size Chart & Size Guide is No. 4 in our Best Shopify Size Chart Apps verdict.