Talking through PIN Balckberry using Android

Is there some App that can be used to communicate with relatives living in Latin America using Blackberry? Most people there use PIN since it’s free, and not What’s up. Is there some App in Android that can mimic/communicate with PIN devices? Mot appreciative for any assistance.

you mean bbm?

btw, skype is also free…

Picture a 67 year old Granpa in Latin America who’s been using his Blackberry for several years, that’s what he knows, he can’t download stuff even if his life depended on it. So, it has to be fixed on this side of the Pacific… He wants his PIN to talk to YOU. No Skype, no What’s UP, but PIN. I know. sigh