Simply getting 5-star reviews from your audience is actually more important that where those reviews are. (Especially since ratings and reviews don't actually affect your podcast ranking.)

Podgagement lets you enable direct reviews on your LovethePodcast.com page, so your audience can send their reviews directly through that page instead of going to another app. This is especially great if they don't already have that other app!

(This feature is limited to the Constellation tier.)