You may want to use the Add by Url feature if you are already browsing a site on your phone and want to quickly add the link to your collection.
Copy the website URL and open the ShopMy app app. Navigate to the collection you want to add this product to, click + New Product and select Add by URL.
ShopMy will ask if you want to paste from Safari. Click Allow Paste and select Create Link.
The product editing pane will open up, allowing you to select the image or edit the title. Select Add Product to add the product to your collection.