Generate a 4-star review (1 being lowest and 5 being highest) about an app with package com.fsck.k9.
Ans: Exchange Support? The UI could be modernised as well. It appeals to the open source PGP/GPG market and that's why I still happily use the app! Just wish I could use all my accounts with it.

Generate a 4-star review (1 being lowest and 5 being highest) about an app with package org.npr.android.news.
Ans: Great but missing ""This American Life""

Generate a 4-star review (1 being lowest and 5 being highest) about an app with package net.androgames.level.
Ans: It does what it is supposed to

Generate a 2-star review (1 being lowest and 5 being highest) about an app with package com.google.android.gms.
Ans: Not download