Good but has 2 big flaws

The topics and level of explanation is high. But the way the content is provided through the App is average. There are 2 main problems: 1) the app is ridiculously slow in loading itself. I have iPhone 5s. It is a general problem caused even if I use high speed wifi / LTE connection - although the loading shouldnt be affected by access speed - and / or have episodes already downloaded to the App.
2) each episode contains high amount of embedded marketing and commercials content

Nirh188bhx about Grammar Girl App, v1.19.10