All photos you take on phone/tablet will be automatically uploaded in the cloud to Google+ so if you lose the phone , you do not lose the photos. This is in addition to any manual upload you do using RMCAPTURE 

You can search on Google+ for photos by keywords (eg color, date, type of item ,see example below which looks for toilet photos taken on Feb 28th 2014

To delete photos on your phone to save space they can be batch deleted(ie all at once by clicking on the checkmark on the right side )