Pricearchive.org is an online Shopify store that lets you compare prices on AliExpress. As soon as a product is listed it will be compared with similar products and updated regularly. You can search for products by their item number, category or subcategory. The main page of the site has bars showing how many times that item has been searched and searched by price range. It's a great way to check whether something is in your price range or not!