3DMU Size Fit vs ScaleChart: Size Chart & Guide
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Oct 13, 2026 for 3DMU Size Fit, Nov 8, 2026 for ScaleChart.
The short answer
- Both list a free plan. Paid plans start at $99/month for 3DMU Size Fit and $29.99/month for ScaleChart.
- ScaleChart lists 1 features 3DMU Size Fit’s listing doesn’t mention, including Descriptions.
Head to head
- Netherlands
- United States
- Australia
Momentum
New reviews each month
Review pace is the clearest public read on how fast an app is winning new merchants.
Free Trial
- · Profile Registrations: 1
- · Size Recommendations: 20
- · Size Tables: 2
Starter
- · Profile Registrations: 35
- · Size Recommendations: 10000
- · Size Tables: 5
Growth
- · Profile Registrations: 100
- · Size Recommendations: 25000
- · Size Tables: 15
Pro
- · Profile Registrations: 300
- · Size Recommendations: 100000
- · Size Tables: Unlimited
Free Plan
- · AI Native Sizes Based On Market
- · Auto Unit Detection by Customer Location
- · Automatic Translation In Any Language
- · Fully Customizable Design
- · Import Charts via Product Description
- · Publish Up to 2 Size Charts
Premium Plan
- · Automatic Size Chart Generation with AI
- · Cart Drawer
- · Everything in Free Plan
- · Post Purchase Upsells
- · Quality Checks & Size Guide Alerts
- · Sticky Add To Cart
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureShoppers can upload a photo on a product page to receive a personalized size recommendation for that item. The result helps customers choose the correct size before adding a product to their cart. Merchants can create size charts for individual products and add the size recommendation widget to their storefront through the Theme Editor without editing any code.
When customers pick the wrong size, you lose sales and face costly returns. ScaleChart is a size chart builder that creates custom AI charts and fit advice to reduce returns. Auto-generate a chart from a photo or text, then auto-assign or bulk-apply it across products. Show it in a mobile-friendly popup, tabs, or theme-native dropdown.
- Give shoppers a personalized size recommendation directly on the product page
- Let customers upload a single photo to find their correct size
- Create and manage custom size charts for individual products
- Add the size widget to any product page through the Theme Editor without code
- Transform supplier images into professional, interactive size charts instantly.
- Automatically transforms units and languages to match your local market needs.
- Sticky Add to cart included
All the numbers
Every figure, side by side
A green dot marks the app ahead on a measured figure. Estimates, gaps and apps that leave no storefront trace never take the lead.
Adoption
| Measure |  3DMU Size Fit |  ScaleChart |
|---|---|---|
| Detected stores | Not published | 186 |
| Net store change, 28 days | 0 | +2 |
| Stores added, 28 days | Not enough data | 3 |
| Big-brand share | Not enough data | Not enough data |
| Top store categories | Not published | Apparel & Accessories, Home & Garden, Luggage & Bags |
| Top store countries | Not published | Netherlands, United States, Australia |
Reviews
| Measure | 3DMU Size Fit | ScaleChart |
|---|---|---|
| App Store rating | Not published | 5.0 ★ |
| App Store reviews | Not published | 55 |
| New reviews, 28 days | Not enough data | Not enough data |
| Reviewers a year or more in | Not enough data | 0% |
Pricing
| Measure | 3DMU Size Fit | ScaleChart |
|---|---|---|
| Free plan | Yes | Yes |
| Lowest paid monthly plan | $99/month | $29.99/month(ahead) |
| Longest free trial | Not listed | 14 days |
| Plans listed | 4 | 2 |
Listing
| Measure | 3DMU Size Fit | ScaleChart |
|---|---|---|
| Shopify category rank | #315 | #3 |
| Shopify App Charts | Not on this week’s charts | #12 in Product comparison |
| Built for Shopify | No | Yes |
| Launched | Jul 29, 2026 | Jan 1, 2026 |
| Languages | 1 | 1 |
| Developer | ProtoTech Solutions and Services Pvt. Ltd. | Scalechart LLC |
FAQ
3DMU Size Fit and ScaleChart: common questions
- Is 3DMU Size Fit or ScaleChart cheaper?
- Both list a free plan. Paid plans start at $99/month for 3DMU Size Fit and $29.99/month for ScaleChart. Shoplist compares base prices only between monthly plans in the same currency; usage charges and annual plans vary, so check each plan’s limits.
- What features does each app list that the other doesn’t?
- ScaleChart lists 1 the others don’t mention, such as Descriptions. A feature missing from a listing may still be supported; this compares what each App Store listing says.
- Where does this comparison’s data come from?
- Shoplist crawls Shopify storefronts to detect which apps each store runs, and reads each app’s Shopify App Store listing for reviews, pricing, features and integrations. Store counts are as of Oct 13, 2026 for 3DMU Size Fit, Nov 8, 2026 for ScaleChart; estimated figures are labeled.
How Shoplist compares apps
Store counts come from Shoplist’s crawl of Shopify storefronts, which detects the apps each store runs; they are as of Oct 13, 2026 for 3DMU Size Fit, Nov 8, 2026 for ScaleChart. Reviews, ratings, plans, features and integrations come from each app’s Shopify App Store listing. 28-day figures are labeled when estimated, and a figure that is missing or estimated never decides who leads. Read the methodology.