You take a photo on the project site, and send it to the client to approve the used materials. Five days later, your supervisor asks for this photo to add to a report. You forgot where you sent it - email, messengers, apps - and so you start looking through sent messages or device gallery, looking for the one. Not the best use of your time.
A special photo management app may help. It will keep your images organized, and link them to other project data like checklists, drawings, and field reports, streamlining communication between stakeholders.