There's a load of DApps using the blockchain. These are obviously built on top of cryptocurrency blockchain platforms, but they are not themselves cryptocurrenc

There's a load of DApps using the blockchain. These are obviously built on top of cryptocurrency blockchain platforms, but they are not themselves cryptocurrencies and do run on top of blockchains. The most obvious (because it's currently very well publicised) example is NFTs and the markets they're sold on through smart contracts. I'm not making any comment on the value of NFTs themselves here, simply pointing out they have become a popular use case for blockchain technology that isn't cryptocurrency. I've also read about blockchain managed supply chain solutions including in distribution of Covid vaccines. Currently this isn't a common use case but it seems to be one that's getting pushed hard recently.