Pocket Casts - There's a reason its the go-to option and that reason is that its excellent.

Press - Feedly based RSS reader. I find I prefer this over the Feedly client.

Telegram - Solid messaging client/platform.

Expense IQ - Daily cash-flow tracking.

Authy - Condenses a bunch of two-factor options into the same app, complete with an online backup option.

Shuttle+ - The best local music app I've come across.

The Metro Redux pack looks to be a good deal. I've played both already, but the updated versions for less than $10 is a steal if you haven't.

I'm currently using a Corsair K95 RGB with MX Reds. I like the reds overall, but I've been toying with getting some Browns for something different, plus I miss the tactile feedback.