Personally paid for Niagara launcher as I find that to be the far superior launcher to any other I've tried. My second one is Symfonium, the most feature rich and well developed audio player.
Meteogram, super customizable weather app. The subscription or one-time-for-life-payment allows access to all paid weather providers that are currently implemented
I also have a weather app similar to this. Weawow. I loved it so much and it was so well made that I thought it was well worth a donation to the developer.
The main thing of the app is to create widgets. If you open the app it's just so many settings to tune your widget as you want it.
The Dev is also super responsive, so if you miss a specific feature it's worth reaching out