Top 5 for the letter F

1. FOXNOW (Free)

Fox's content.  You will need a cable subscription, but there is a lot of good shows.  The on demand is a day behind which blows.  There is also no Live TV to it, but it is still worth having.

2. FXNOW (Free)

Really good shows on FXNOW.  They make quality programming, so worth getting the app.  You will need a cable subscriber.   No Live TV and the on demand comes in a day later.  

3. Fight Network (Free)

Dedicated to complete coverage of combat sports.  There is fight news and analysis as well as reality series and documentaries.  Around the world news coverage of kickboxing, boxing, martial arts, wrestling and more.

4. free classic movies (Free)

Access to a ton of classic movies for free.  They have to be in the public domain, but the app is very easy to navigate and they have a great selection.  

5. fyyt Yoga (free)

A free yoga app. Just has video yoga sessions for morning and afternoon.