Shopify App Review · Size Charts & Fit
G: Size Chart & Size Guide Review (2026)
Stores selling anything with a fit, clothing, shoes, jewelry, lingerie, even pet products, that want proper size charts without paying for them.
SCORE
/10
G: Size Chart & Size Guide is a completely free Shopify app from Grouptify that adds customizable size charts and size guides to product pages. It ships 20+ templates for clothing, shoes, jewelry, lingerie, and pet products, imports sizing data from CSV files or chart images, converts cm/inches automatically, and shows US/EU/UK/Asia standards on a single chart. Charts can display inline, as a floating button, or in a popup. It launched in June 2026 and holds a 5.0 rating from its first 3 reviews.
Want to try G: Size Chart on your store?
Partner link · you pay the same price as going direct via Shopify
What G: Size Chart actually does
G: Size Chart & Size Guide adds sizing information to your product pages so shoppers pick the right fit the first time. You start from one of 20+ ready templates, clothing, shoes, jewelry, bras and underwear, and pet products are covered, or build a chart from scratch, then style it to match your brand’s colors, layout, and tone. Charts can sit inline on the page, behind a floating button, or in a popup, and the layouts are responsive.
The workflow details matter for bigger catalogs: sizing data imports from CSV files or from images of existing charts, so migrating what you already have is quick, and charts stay consistent across the catalog. For international selling, the app converts cm/inches automatically and can show multiple sizing standards (US, EU, UK, Asia) on a single chart, so one guide serves every market. All of it is free, with no paid tiers on the listing.
How it scores across key areas
| Features | 7.5 | |
| Ease of setup | 8.5 | |
| Value for money | 9.5 | |
| Support & docs | 7.0 | |
| Reliability | 6.5 | |
| Track record | 4.0 |
Pros & cons
- Completely free, every feature, no metered tiers, while most size chart competitors charge
- 20+ templates spanning clothing, shoes, jewelry, lingerie, and pet products
- Imports sizing data from CSV files or images of existing charts
- Automatic cm/inch conversion and US/EU/UK/Asia standards on a single chart
- Flexible placement: inline, floating button, or popup, with responsive layouts
- First reviews (bridal, apparel, jewelry stores) all praise easy setup and clean design
- Launched June 19, 2026 with only 3 reviews, so the track record is minimal
- No Built for Shopify badge yet
- No AI size recommender, established competitors like Kiwi offer recommendation engines on paid plans
- Free-forever with no visible revenue model, so long-term support is an open question
- English-only app admin at the time of writing
Seen enough? Spin it up on a duplicate theme:
Partner link · same price as direct on Shopify
App Store screenshots
Marketing screenshots from the Shopify listing, in-admin UI may look different. Always verify on a duplicate theme.
Before you spend trial time
- Set up one chart from a template for your best-selling category and check it against your real measurements.
- Test the CSV or image import with your existing size data before building charts by hand.
- Preview the chart on mobile, sizing tables are exactly the content that breaks on small screens.
- If you sell internationally, verify the multi-standard display (US/EU/UK/Asia) shows the right conversions for your products.
- Try all three placements (inline, floating button, popup) and pick the one your theme presents most cleanly.
- Watch your sizing-related support messages and returns over the first month, that’s the metric this app exists to move.
Pricing
Plans (verify on the listing): Free. The listing shows a single 'Free' plan with no paid tiers, no trials, and no metering. If that changes as the app matures, check the listing for current terms.
Pricing changes frequently on Shopify apps, always check the live listing for the latest tiers and trial terms. View current pricing on Shopify →
Closing take
G: Size Chart & Size Guide delivers the core of what paid size chart apps sell, templates, imports, unit conversion, multi-standard charts, flexible placement, for nothing. Early adopters in bridal, apparel, and jewelry all report clean results and easy setup.
Bottom line: it’s very new, and free-forever tools always carry a question mark about longevity. But the cost of finding out is zero, and if it moves your returns or cuts your ‘what size am I?’ messages, it earns its slot on day one.
Ready to try G: Size Chart?
Free plan / trial on the listing · validate on a duplicate theme before you roll it out.
Partner link, you pay the same as going direct via Shopify.
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Frequently asked questions
Is G: Size Chart & Size Guide really free?
Yes. The App Store listing shows a single Free plan with no paid tiers, no trial windows, and no usage metering. All the features, templates, imports, unit conversion, placements, are included.
Do size charts actually reduce returns?
Fit issues are one of the biggest return reasons in apparel and footwear. A clear, accurate size chart at the point of decision reduces wrong-size orders and the ‘buy two sizes, return one’ pattern. The app’s early reviewers also report fewer sizing questions reaching support.
Can I import my existing size charts?
Yes, sizing data imports from CSV files or from images of your existing charts, so you don’t have to retype tables when migrating from another app or from manually maintained charts.
Does it handle international sizing?
Yes, charts convert cm/inches automatically, and you can show multiple sizing standards, US, EU, UK, Asia, on a single chart, which keeps one guide accurate for every market you sell to.
How is it different from Kiwi Size Chart?
Kiwi is the category veteran (1,000+ reviews) and offers an AI size recommender on paid plans. G: is brand new and free, covering charts and guides without the recommendation engine. If you just need great-looking charts, G: does it for nothing; if you want measurement-based recommendations, Kiwi’s paid tiers are the established route.
How established is the app?
It’s early: launched June 19, 2026 by Grouptify (Hanoi), with 3 reviews so far, all five-star, from bridal, apparel, and jewelry stores. No Built for Shopify badge yet. Since it’s free, the sensible approach is simply to install it and judge on your own store.
How we researched this
- Primary source: Shopify App Store listing for G: Size Chart & Size Guide
- Supplementary: 3-star review sampling for support and UX friction signals
- Last updated: July 13, 2026