We have some great apps to create size charts on your store, please check out Msure.it and Virtusize. If you're comfortable with some very basic programming you can also create your own size chart, we have a step-by-step tutorial for you to follow.
We also have the Swatches app which will add colour swatches to your store.
If you have any more questions please don't hesitate to reach out to our guru team. We're here to support you 24/7!
Shopify size chart tutorial: https://docs.shopify.com/themes/customization/products/add-size-chart
This is an old post, but I do want to share a new sizing chart app that our team has created.
Kiwi Sizing Chart makes it very easy to manage all your sizing charts in a single app. You can assign different charts to products based on custom rules and you have full control over the layout and style of the sizing charts. And finally, the best feature of the app is the automatic unit conversions that is essential if your shop targets different audiences.
Feel free to check it out! we have 7 days of trial period.
We have created a sizing algorithm that is based on ML and AI. We hav already successfully implemented it in other shops and platforms, but are new to shopify :)
Maybe you want to give it a try.
You can set up your own size charts and depict them to your end customers but also connect them with your products and use our Size Finder. People in your store can then easily find out the size that fits them well :)
We have a 30 day free trial period and are currently on a half-price option so would be happy if you give it a try :)
Here it is: SMS Apparel Size Recommender.
Have a great day.
All the best,
(twinster.eu showmysize.com )