We've found, often with Samsung Android devices, that links to Spark Hire are opened in the Samsung Internet browser which is not supported.

The quickest fix to make sure your link opens in a supported browser is to change your Android device's default browser to Google Chrome. 

To change your Android device's default internet browser to Google Chrome, follow these steps on your device:

1. Go to Settings
2. Select Apps
3. Tap on Chrome in the list of apps
4. Select Browser app under Defaults
5. Tap on the radio button to the left of Chrome