iPhone
You just said you would use one. That is the whole vote: opening this page adds one line to the server’s own log, with your address masked before it is written. Nothing else is sent — no email, no form, no cookie, nothing to fill in. You are done.
The count is read on the same page as everything else about the site, and when it says an iPhone build is worth the weeks it takes, that is what happens next. It will be said on the Facebook page and nowhere sooner.
The pitch test on this site runs in Safari, and the number it gives you is yours to keep — it is what an audiologist calls a pitch match, and it is useful to have written down before an appointment. It is kept only in the tab you came from, so if you still want it, use the back button rather than the link below.
The masking preview here is one minute, on purpose. For the night, any broadband noise played quietly does the part that is well established — sound helps. The notch at your frequency is the optional part, and the research on it is mixed; this site says so at length.
Because it is one developer, and an iPhone build is not a checkbox: it is a Mac to build on, a developer account, a review process, and a phone to test the one thing the app has to get right — playing all night, under whatever else is on, without the screen. The Android app took that time first. Whether the iPhone one gets it next is decided by the count this page feeds, not by a guess.
Sylence is a masking and habituation-support tool, not a medical device. It does not diagnose or treat anything. If tinnitus is new, sudden, in one ear only, pulsing with your heartbeat, or arriving with hearing loss or dizziness, see a doctor or an audiologist.