Apart from listening to them, it also offers the following options:
-Define a set of sounds as favorites, so you can access them quickly.
-Add sounds as widgets on the desktop.
-Define them as notification, phone, alarm or contact tones.
-Send them through WhatsApp, e-mail or MMS.

Animals included: cat, dog, sheep, macaw, bee, canary, chicken, cougar, crow, elephant, pig, goat, hawk, horse, lion, tiger, mosquito, vulture, fox, wolf, turkey, and many more!

WARNING! Widgets will only work if the application is installed on the internal memory! If you install it on the SD card, Android automatically disables widgets!

Permissions explanation:
-Modify SD contents: to be able to copy it to the SD card
-Total Internet access and view network state: AdMob ads
-Read and write contacts data: set ringtones for specific contacts
-Modify system setting: set ringtones