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For sure, I would recommend you to visit their blog as well, they keep it update with latest information to this project.
https://blog.peerity.io/

https://scrypto.io/Scryptowpen.pdf
https://community.matchpool.com/

Looking at a few other new apps today as well; what can you tell us about these?

I have made a post on Matchpool. Its a decentralized matchmaking platform which works uses group dynamics to match people. It's basically used for dating, but can also be used for a variety of purpose. Like matching people with product, communities, other people and lots more.
You can read about it in here in this article:
https://steemit.com/matchpool/@cryptonet/let-s-meet-1-brett-harvey-the-techie-community-manager-of-matchpool

About scrypto.io , I have not much information right now, But I'll update you about it asap.

I like to keep an eye on this space in general.
But keep in mind; there will be 100 failures, for each success, and it's not easy to spot the winners.