The best way to search for wines is to use the search wines option in the welcome screen. Just enter any keywords related to your search and a list of wines will be retuned as you type. Alternatively, you may use the filters (search wine by Colour, Region, Vintage & Price)
The latest prices & stocks in the product list will be automatically updated each time the app is accessed, unless you have disabled the Auto Updates (via the Settings Menu). Updating the price list requires an internet conection. It may take a few minutes and will download approximately 5MB of data.