Realistic try-on and exact sizing from each garment's real measurements, right on your product page. Fewer doubts, fewer returns, more carts.


8 reference bodies: slim, regular, athletic and plus-size, in male and female. Or the shopper uploads their own photo and sees themselves.
Fittly generates a realistic try-on of the garment on the chosen body. Standard try-ons are cached for 30 days for instant delivery.
The AI analyzes height, weight and fit preference, and recommends the right size. Fewer doubts, fewer returns, more conversion.
The core of Fittly. The shopper sees the garment on, in their own photo or on one of the 8 models, before deciding.
The AI crosses height, weight and preferred fit with the product's real size guide. Less "will it fit?", fewer returns.
No uploading size charts, no picking photos, no touching your theme. You enable the app in the theme editor, hit save, and Fittly handles the rest by reading your own catalog.
Your sales data comes filtered by your own stock. If you are always out of XL, your sales say nobody wears XL, and you restock what was already sitting there. Fittly records the size each shopper actually needed, available or not.
Your store's size curve straight from the real recommendations, by scale and by product. Not what sold: what your shoppers are.
On which products, and how many times, the ideal size was out of stock and Fittly offered the closest one instead. That is demand that leaves no trace anywhere else, because nothing happened to record.
And the products that break the pattern are worth watching: if one garment consistently comes back a size up from the rest of its scale, it runs small. That is usually the piece quietly generating your returns.
The shopper saves their model and measurements once. At the next store running Fittly they try on without uploading anything again, and stores never see their photos or try-ons: their data stays fully private. A network effect that grows with every store.
Installs from the App Store and shows on your PDP without touching code. Works with any theme.
Enable the try-on and size recommendation per product. Usage and conversion metrics in one dashboard.
Standard try-ons are cached for 30 days: if another customer tries the same garment on the same model, the result comes from cache at no cost.
No quotas to guess: every plan pays per try-on used, and the monthly fee only lowers your rate. You set your own monthly spend cap.
📊 You start free paying per use; as your volume grows, the monthly fee lowers your per-try-on rate.
Install Fittly from the Shopify App Store and run your first try-on in minutes. Free to install, no monthly fee.
Install on Shopify →