Is there any evidence that those things actually work? I haven't done a lot of research on it, but I asked my ENT about it and she said that they don't have a great success rate and they're pretty expensive so I don't want to pay for it.
If I recall correctly, the better form of bimodal stimulation was found by Susan Shore et al.[1][2][3]. Lenire created a quick and dirty version and got it approved, while Shore's device is still stuck in limbo.
If it ever gets approved, it should be considerably better than Lenire, but it's sure taking its time.
I had great success with Lenire, at the end of the six month (twice a day, 30 minutes) treatment the intensity of my tinnitus had definitely decreased, but almost more importantly I'd been reconditioned not to focus on it as much.