- Ensure you are connected to WiFi, as your device may prevent downloading over cellular to preserve data
- Check you have enough free storage space on your device (we recommend at least 200MB)
- Restart your device
Try clearing the Play Store cache (Settings app, tap Apps & notifications, tap Google Play Store, tap Storage, tap Clear Cache, and then tap Clear data). If that doesn't help, you might need to perform other resets to the Play Store app (removing updates) or Download Manager. See the Google Play Support Page for additional steps.
Try checking your payment method for the App Store. If that doesn't help, see the Apple Support Page for additional details and to contact Apple for help.