Computer application software for mobile phones, hand-held mobile devices, tablets, personal computers, laptop computers, and portable media players, namely, software for alerting the community that a pet is missing in the vicinity, for use in locating lost pets, and for maintaining records of said pets; computer application software for mobile phones and hand-held mobile devices, namely, software for searching and posting lost and found pets through customer-defined content into a database which also provides the searchable content and notification system based on the known or estimated geographical location of an internet, mobile telephone or other wired or wireless digital network based device; downloadable software for helping users locate and identify lost and/or found pets, featuring, search functions, data upload, download, storage and retrieval, record creation and management, aggregated third-party data, printed matter creation, advertisement creation, affinity group creation, messaging, communicating, social media broadcast functions and account management functions