You can switch the region in the Ohmywishes web version through the regional settings menu, located at the bottom of the site next to the Privacy Policy and User Agreement information. Click on the region name, followed by the ˅ arrow. In the menu that opens, select your preferred region.
You can switch regions in the Ohmywishes apps on iOS and Android via the globe icon, which is located at the top of the “Ideas” screen. Click the icon, then in the menu that opens, select your preferred region.