Computerized apparatus and methods useful for causing provision of location-based services to users via a user portable wireless computerized device or other device. In one embodiment, the user device establishes a secure communication session with a network server (e.g., proxy process for a service coordinator or provider) to provide user-specific location-based services such as a time-limited rental of a tangible object or space. In one variant, dynamic generation of a response to the user included providing image data relating to provision of the user-specific location-based service, the image data enabling the user to authenticate at least one aspect of the provision of the user-specific location-based service by the third party service provider.