Petboost is not in the App Store or on Google Play, so you add it from your browser's own menu, with nothing to download and nothing to update.
- Open business.petboost.com in the browser you normally use, and sign in. On an iPhone or iPad, use Safari. On Android, use Chrome or Samsung Internet.
- Open the browser's menu. In Safari, tap the share button at the bottom of the screen. In Chrome, tap the three dots at the top right. In Samsung Internet, tap the menu button at the bottom right.
- In Safari, scroll down the list and tap Add to Home Screen, then Add. In Chrome, tap Install app or Add to Home screen. In Samsung Internet, tap Add page to, then Home screen.
- Open Petboost from that icon afterwards rather than from a bookmark, or it comes back with the address bar still showing.