You get what you pay for. Its a good app, no crashes, I only like about 1/3 of the sounds, but thats enough. The only issue I have is that theyre a bit repetitive--it took less than 5 minutes of listening for me to hear the loop, but maybe thats because Im a sound junkie. Definitely glad I have it. Must say, the Darth Vader effect is a bit strange...
Itslilolme about Relax Sounds - Relaxing Nature & Ambient Melodies - Help for Better Sleep, Baby Calming, White Noise, Meditation & Yoga