Recently I announced Hive Lottery available at https://hive-lotto.app - the idea is you enter a lottery pool where a random participant is drawn. I tested this extensively with my own account, but the first proper draw just completed.
The app itself keeps 2.5% of the total prize pool and the rest gets paid out. In this instance, the app earned 0.250 HIVE for this draw. In reality I lost HIVE on this because I entered the draw too and lost (ha).
It's a big deal because this is the first time I've built an app myself for Hive that is automated. There's a certain level of risk that comes with creating an app that automatically handles payouts like this (like say missing a number or improperly rounding in code and sending the wrong amounts, etc). The fact this first draw operated fully autonomously is such a good feeling and fuel for other ideas.
While it hasn't been a resounding success from a use perspective (this draw only had 5 entrants, the bare minimum needed to run a draw), it was fun to build a fully-functioning Hive app from start to finish. I've listed the app over on dApp Radar too: https://dappradar.com/dapp/hive-lottery - who knows if this brings in users, but it's advertising for the Hive blockchain nonetheless.
It's so easy to take for granted how easy it is to build apps here and the fact there are zero fees is something that more people should be wowed by. It allows you to build these really fast and cheap apps.
Future plans
Admittedly, Hive Lottery is quite a simplistic app. You enter a pool and a random user is selected. But if the app ever gets to the point where there are regular active users participating, then I envision different draw types, maybe larger prizes (high roller type situation of high risk, high reward).
I kinda don't want to add too much onto the app and keep it simple. Just something fun you spend 2 HIVE on and hope you win.
Thanks to the feedback from @thedd I implemented support for Hive Keychain (it launched with just HiveSigner and manual transfer memo support).
But, this has got me excited for something else I am working on. I'm actually using a lot of the same code from Hive Lottery for another idea I'm actively build (something competitive based and less gambling focused). My plan is to launch quite a few apps for Hive this year (time permitting).