I have both this app and another by the same company and I love it. This app especially since Im able to create my own sounds. For instance, if I want, I can use the sound of rain and combine it with a fireplace for my own unique sound combination. Ive used other apps but this company really has the most natural sounding music/nature sounds. Lastly, if your into meditation and relaxation I love using this app with my mind-place audio visualizer, other wise known as Biofeedback. Ive nerve experience problems with freezing, crashing, or glitches. Defiantly recommend this app!