---
title: "FitKit ‑ Size Charts & Guide Shopify App Profile"
description: "Sizing doubt is the \\#1 reason fashion shoppers hesitate, and wrong sizes drive costly returns. FitKit fixes both without slowing your store: the size guide link renders with zero network calls and the modal is under 5 KB, loaded only when a shopper clicks. Start from ready-made templates \\(tops, pants, shoes, rings, kids\\), edit rows and columns freely, and let shoppers switch cm/inches automatically. Assign guides by product, tag, collection, vendor or store-wide. No AI and no customer data."
canonical_url: "https://shoplist.co/shopify-apps/fitkit-size-charts-guide"
markdown_url: "https://shoplist.co/shopify-apps/fitkit-size-charts-guide.md"
last_updated: "2026-10-14"
entity_type: "shopify_app"
slug: "fitkit-size-charts-guide"
source: "public Shopify app profile allowlist"
---

# FitKit ‑ Size Charts & Guide Shopify App Profile

> Sizing doubt is the \#1 reason fashion shoppers hesitate, and wrong sizes drive costly returns. FitKit fixes both without slowing your store: the size guide link renders with zero network calls and the modal is under 5 KB, loaded only when a shopper clicks. Start from ready-made templates \(tops, pants, shoes, rings, kids\), edit rows and columns freely, and let shoppers switch cm/inches automatically. Assign guides by product, tag, collection, vendor or store-wide. No AI and no customer data.

## Quick answer
FitKit ‑ Size Charts & Guide has 0 detected stores in Shoplist. This Markdown profile displays 0 public brand examples; it is not a complete customer list.

## Key facts
- Name: FitKit ‑ Size Charts & Guide
- Monitoring status: First-adopter watch
- Developer: A.N. ADVISORY
- Developer profile: https://shoplist.co/app-developers/a-n-advisory
- Shopify App Store URL: https://apps.shopify.com/fitkit
- Website: https://fitkit.unlawck.fr
- Launch date: August 31, 2026
- Shoplist category: Collections & Merchandising
- Free plan signal: Yes
- Free trial signal: Yes

## Pricing summary
Free: Free; Growth: $6.99/month; Pro: $19.99/month

Shoplist has not yet found reliable public storefront evidence connecting a Shopify store to this app. This does not mean the app has no users. Some apps are new, admin-only, server-side, theme-independent, or otherwise difficult to detect from public storefront signals.


## Public callouts
- Featherweight modal under 5 KB, lazy-loaded — zero impact on store speed
- Ready-made templates with automatic cm/inches switching for shoppers
- Rule-based size recommender — instant, private, no AI \(Pro\)
## Shopify App Store categories
- Product variants

## Data note
Profile updated: October 14, 2026. This is the profile revision date, not a guarantee that every store was checked on that date.
Public snapshot built: 2026-10-14 10:55:52.46519\+00
Detection metrics refreshed: 2026-10-17 05:10:00.079086\+00
Public app evidence date: 2026-10-14 06:05:15.660099\+00
This generated Markdown profile intentionally exposes only public, stable app-profile fields and a small public app-stack sample from Shoplist. It excludes private contact data, people data, internal scores, crawl provenance, full datasets, and unstable operational fields.

## Related links
- [HTML app profile](https://shoplist.co/shopify-apps/fitkit-size-charts-guide)
- [Shopify apps directory](https://shoplist.co/shopify-apps)
- [Shoplist data methodology](https://shoplist.co/data-methodology.md)