1. For those saying "all it does is HUMS" all I have to say is "ignorance is bliss" Many thanks to the developer!when you pay for the other tones they are EXACTLY the same as the free one! Dont fall for it..total rip off!!Great sound scapes but all that I seem to be able to do play one song.
2. Even a free trial of 7 days for all the tones would be better than what you did.I'm not a sound technician, but anyone with simple interest in technology can figure out that very few device can play 7.83 hz with accuracy! Most devices do as low as 20 hz so will not create the required tone.
3. Which makes me wonder why do I hear any sound on my phone when I play the app?I wanted a simple app that would play the schumann resonance in the background all the time and what do ya know.... that's exactly what this f***** does.
4. And then they wanted money for an upgrade.changes! help subdue all the harmful magnetic fields n radiated frequencies we are bombarded every day with harmful toxicities on every level.thanks so much!!!!!Good program.
5. Don't tell me an app is free and I can't even test the whole app before spending money I cant get back if the app is glitchy or doesn't do what is advertised.
6. That's all I wanted and it does it for free.
7. It would be better to advertise 1 tone for $1.49 but get all tones for a one time payment of $8.
8. It does what it says and it is the only one in the Google store that has the Earth Frequency.
9. Anything extra I can understand having to pay for, but this is what I wanted.
10. That humming is exactly what I was looking for.Great app.
11. Self hipnosis, and my energy works.