Troubleshooting My Philips NutriU app does not open If your Philips NutriU app does not open, there might be a simple solution. Discover here how to solve it yourself. Non compatible operating system Please verify if your device and its operating system (OS) are compatible with the Philips NutriU app. There is a bug If you checked and your device is compatible with the app (as indicated above) but the app does not open, then there is a bug with the app. In this case, contact us. We will need to know your OS version (iOS, Android, installed version) and your device model.