The companies say they hope other countries will follow suit as the world's population ages.
Apple CEO Tim Cook, IBM CEO Ginni Rometty and Japan Post CEO Taizo Nishimuro announced the deal in New York on Thursday.
The program will provide iPads with apps designed to help seniors manage day-to-day lives and keep in touch with family members. IBM will provide cloud services and help create apps to improve seniors' quality of life.
Apple and IBM formed a partnership last year to create mobile apps for a broad range of industries. This has led to the creation of 22 apps so far.