Today's Free App of the Day is XiiaLive Pro
This is a sleek, well rated Internet radio app. One reviewer mentions it having stations not in iHeart or TuneIn and vice versa, so it may be a compliment to the apps you already have, not a replacement. I would say that is a fair description.
The one one-star review so far says that local stations could not be found, contrary to the product description.
I was able to find a couple of local stations that I looked for, and couldn't find others. Fortunately, my most listened-to station was included. You can search for stations by area (I tried Washington and Virginia, for example) and from the list, add stations to "favorites." You can search for a particular artist and stations that are currently playing that artist will appear, along with the song that is being played. Yay for Springsteen radio! You can also tag stations or streams.
Based on my initial exploration, I would rate it four stars for ease of use, quality of the player and general appearance.
There isn't much in the way of instructions, however. :) There is a support cite, http://support.xiialive.com/.
17 of 18 reviews are four stars and above.
These apps are compatible with the original Fire and with my Fire HD 8.9" 4G. To tell if an app works for your Fire HD or other Android device registered to your Amazon account, click on the above link and look on the right side of the web page. Amazon will tell you if it will work with your registered device.
Also check out the other digital deals from Amazon, including great deals on MP3s and videos: