Only the current version so far — new entries appear as the app ships updates.
Frequency Sound Generator is a music & audio app by maxitime22 with 10,000+ downloads (about 13K estimated). +12 installs in the last 7 days. Rated 4.4 from 77 ratings. Released Mar 22, 2020. Install growth, rank history, SDKs and ad networks.
From the store listing: “Stereo sound frequency generator. Turn on 10 frequencies at the same time.”