Only the current version so far — new entries appear as the app ships updates.
Discrete Fourier Transform is an education app by James Mainwaring with 1,000+ downloads (about 3.9K estimated). +5 installs in the last 7 days. Released Aug 27, 2020. Install growth, rank history, SDKs and ad networks.
From the store listing: “Define input signals then apply the DFT or IDFT and view input and output plots.”