If an official Android APK exists, it would likely be hosted on the main Pogolinks website under a "Mobile App" section. These are frequently vectors for adware or credential stealers.
Always remember: your digital safety is paramount. A link shortener is a tool that often has access to your social media accounts and website data. Protect those credentials by only downloading software from official channels.
Many modern link management tools, including potentially Pogolinks, offer a PWA. This is essentially a website that behaves like an app. pogolinks app download