IBM and Apple said today that they would be working with Japan Post, the country’s postal service, to deliver four to five million iPads outfitted with IBM software to seniors in Japan by 2020.

The collaboration between Apple and IBM is an extension of the partnership the two companies announced last year as they hope to put more iOS devices and IBM software into offices. Last July, Apple and IBM said that they would introduce over 100 industry-specific apps for iPhones and iPads to entice IT departments to buy Apple for their offices. This latest project with Japan Post will be similar in that IBM will design wellness apps and analytics software for iOS to serve an aging population.

The initiative will be a part of an existing Japan Post service called Watch Over in which post deliverers check in on senior citizens and report their status to family members for a monthly fee equivalent to about $8.40, according to the Wall Street Journal. Apple and IBM will run a pilot program in the second half of this year.

In a financial call on Monday, Apple reported that iPad sales have continued to slow. The company's partnership with IBM has been a part of its plan to bolster iPad sales numbers.

The Wall Street Journal notes that "Japan Post is a government-owned holding company that runs 24,000 post offices as well as one of the world’s biggest banks and Japan’s largest insurer.” Apple's press release also noted that Japan Post Group "has existing financial relationships with nearly all of the 115 million adults in Japan.”

Japan has one of the oldest populations in the world and its Watch Over program, though small currently, is popular in rural areas. The new iPads will augment Watch Over with all of the standard apps that you’d find on an iPad like FaceTime, Photo Sharing, and Mail, as well as custom built apps that will remind seniors to take medication, eat, and exercise. IBM also says it plans to build apps to connect seniors to their community.

"By handing iPads to the elderly, we can closely check in on them more often—not only confirming if they are doing fine but also making sure that they are not involved in any trouble like a scam targeting the elderly,” a Japan Post official told the Wall Street Journal on Thursday.