LeDuc Size Charts vs Kiwi Size Chart
I'm Tyler, and I make LeDuc Size Charts. Kiwi Size Chart & Recommender does more than my app does. If you mostly need clear size charts on your product pages at one flat price, mine might be enough. Here's how the two compare, using only what's on Kiwi's own App Store listing.
Side by side
| LeDuc Size Charts | Kiwi Size Chart & Recommender | |
|---|---|---|
| Free plan | Free: 2 size charts, all features | Free: up to 3 size charts, Kiwi watermark included |
| Paid plans | Pro: $7.99/month, unlimited charts | Premium: $7.99/month, up to 10 charts Plus: $14.99/month, up to 20 charts Ultimate: $26.99/month, unlimited charts |
| Charges based on order volume | Never | Premium: none listed ("No additional monthly charges") Plus and Ultimate: "Additional charges apply based on order volume" |
| Other add-ons | None | Import credits, listed as optional add-ons on every paid plan |
| Free trial | 14 days | 14 days |
| Templates | 5 | 22 |
| Several charts as tabs | ✓ | ✓ |
| Images in charts | ✓ (upload or link, above or below the table) | ✓ |
| Videos in charts | — | ✓ |
| Inches / cm | ✓ shopper switches with one tap | ✓ unit set automatically from the shopper's location |
| Size recommendation | ✓ "Find my size" from shopper measurements (rule-based, not AI) | AI-powered recommender: paid plan (Plus: up to 10, Ultimate: unlimited) |
| Import charts from images or product descriptions | — | ✓ |
| Spreadsheet data | ✓ paste a table from Excel or Google Sheets | ✓ upload charts via CSV |
| Auto-translate charts | — | Paid plan (2, 6 or 22 languages by plan) |
| Analytics | — | Paid plan (Google Analytics on Premium; recommender analytics on Plus) |
| Export all charts to a file | ✓ JSON export and import | Not mentioned on their listing |
Prices checked 2026-11-04 from the App Store listing. Plans change; check their listing for current prices.
What Kiwi does that mine doesn't
- AI size recommender. Kiwi lists AI-powered size recommendations, with custom recommenders on its Plus and Ultimate plans. Mine has a simpler "Find my size" form that matches the shopper's measurements against your chart. There's no AI or machine learning in it.
- Automatic translation. Kiwi's paid plans auto-translate charts (up to 22 languages on Ultimate). Mine doesn't translate anything.
- Analytics. Kiwi lists a Google Analytics integration and size recommender performance analytics. Mine has no analytics.
- Importing from images and product descriptions. Kiwi can import charts from images, product descriptions or CSV. Mine can't read a chart from an image. You paste the table in or type it.
- Videos and more templates. Kiwi lists videos in size charts and 22 pre-built templates. Mine supports images but not video, and has 5 templates (women's tops, men's tops, pants, shoes, rings).
- Units by location. Kiwi switches the unit automatically based on where the shopper is. Mine shows the unit you entered, and the shopper taps to switch.
When mine is the better fit
- You want one flat price. Pro is $7.99/month for unlimited charts, billed through Shopify.
- You don't want your bill tied to your sales. Mine is never billed by order volume, page views or anything else that grows with your store.
- You have more than 10 charts and don't need a recommender, translations or analytics.
- You want your data portable. Every chart exports to a JSON file you can keep or import again later.
- You want simple assignment: each chart goes on specific products, collections, tags, vendors or all products.
How to switch
- Get your tables ready. Kiwi's listing mentions CSV upload but not CSV export, so the simplest source is the spreadsheet you built your charts from, or the table copied out of Kiwi's chart editor.
- Install LeDuc Size Charts. Create a chart and paste the table into Paste from a spreadsheet, or start from one of the templates and edit the numbers. Size-label columns like US or EU stay as they are when shoppers switch units.
- Choose where each chart shows (products, collections, tags, vendors or all products) and save.
- On the app's home page, click Turn on automatic embed and save your theme. A "Size chart" link appears above Add to cart. If you'd rather place it yourself, use the Size chart block, or the Size table block to show the table inline on the page.
- Check a product page, then turn off Kiwi's embed and uninstall it.
Once your charts are in, use the JSON export to keep a copy. If you ever leave my app, you take your data with you.
Try it
LeDuc Size Charts is in review for the Shopify App Store; this page will link to its listing once it is approved. Setup steps, FAQ and support are on the LeDuc Size Charts page, or email tyler@leducsystems.com.