A context-based action determination system includes: a first terminal device; a server device communicably connected with the first terminal device and configured to receive a service provision request from the first terminal device; and a second terminal device, different from the first terminal device, communicably connected with the server device and configured to transmit context information to the server device. The server device determines whether a service associated with the service provision request is providable to the first terminal device in response to the service provision request based on the context information received from the second terminal device, and the server device provides the service to the first terminal device when the server device determines that the service is providable.