On an Iphone:
- tap on settings
- scroll to the bottom until you see the homesnap app w/ an icon pointing to the right - tap on it
- tap on notifications
- tap on allow notifications
On an Android:
- tap on settings
- tap on notifications
- tap on app notifications
- find Homesnap in the list
- select the option to turn on notifications
(Please note: some older versions of Iphones/Androids may have a different menu setup)