You may also have to clear the Trulia Mobile app cache on your smartphone. Click on your Settings/Tools to go to your Application Manager. Select the Trulia Mobile app from the list of applications and you should be given option to "Clear cache." Click this button and stored data will be removed.
If you have additional questions, please visit our help center here: https://trulia.zendesk.com/hc/en-us
Can anyone advise on how to delete notifications??