Troubleshooting My Philips NutriU app does not open If your Philips NutriU app does not open, there might be a simple solution. Find out how to solve it yourself here. 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.