Only the current version so far — new entries appear as the app ships updates.
すぐ見るメモ is a tools app by Takuya Abe with 100+ downloads (about 275 estimated). +1 installs in the last 7 days. Install growth, rank history, SDKs and ad networks.
From the store listing: “You can see your notes instantly in notifications and floating screens. In addition to taking notes, you can also launch the web and apps.”