I decided to make a list with some of the best app sites online:

For Buying Apps:

Google Play  this is the best place to buy Android apps, and the site is owned by Google .

Apple iTunes if you have an iPad or iPhone and you want t buy apps then iTunes is the place to go.

Review Sites 

https://www.theverge.com/apps reviews of  some of of new noteworthy Android and iPhone apps, and gamed for your smartphone

For all you gamblers out there http://www.mobilebetting.co/ reviews of betting apps and mobile casinos

App News

A often go to https://www.theguardian.com/technology/apps to read the latest news about apps, TheGuardian a really good site to get tech news.

Google news https://news.google.com for some reason when i am looking for apps

news i always end up looking at Google news.