The invention is related to an apparatus that includes: a housing attachable to a blister pack, at least one sensor attached to the housing and capable of sensing removal of a pill from an attached blister pack and a controller. The controller is configured to: determine a timing parameter for taking a pill, receive from the at least one sensor a signal, determine based on the signal if a pill was removed from the blister pack, and if a pill was not removed from the blister pack within a time period based on the timing parameter issue to an output unit a reminder signal for taking the pill.
