There are millions of seniors aged 65 and above who have high tech literacy and have smartphones and most of them are lonely. Here is a solution to help them

266: Help Pet dog owners find the best food

Vijay Peduru provides one million-dollar startup idea every Tuesday. 
These ideas won't help you build the next Instagram or Twitter, but would help you
create a $2K to $10K MRR(Monthly recurring revenue) business. The goal is to help you accumulate half a million to a million dollars in 3-5 years.
These ideas could be easily implemented without much tech background.