The new (well, years now) owners of this company, PingWell, bought the program from the original developer, and reneged on all contracts that had built the company in the first place. I am one of those who paid BIG bucks (I forget if it was $5 or $10) in the early days, when most apps were free or at most 99¢, because I wanted to support a good developer and have advertisement-free list-sharing for life. Pingwell is your typical Hong Kong/Chinese company that will take all it can steal, and deliver as little as it is forced to. Apparently Apple doesn’t enforce contracts between developers and customers. Pingwell will ignore you, tell you to just subscribe, shrug, and if you push hard enough, it will just tell you to ask Apple for a refund. Atrocious business practices!
So, apparently, all of my previous reviews have just been deleted. I guess when you rate something ONE STAR it just gets thrown in the trash by Apple. Great way to serve your customers. :-(
TL;DR: Just use Apple’s built-in Notes app, creating tick-box lists, and share that among your friends and family to create your own shopping list program. Do NOT to give criminals money. Stop putting up with advertising stealing your precious time and attention. We only have ~38m minutes in a lifetime! ;-)