Only the current version so far — new entries appear as the app ships updates.
ProTech マイナンバーIC認証 is a tools app by Showcase Inc. with 50,000+ downloads (about 68K estimated). +1.8K installs in the last 7 days. Install growth, rank history, SDKs and ad networks.
From the store listing: “ProTech My Number IC Authentication is an application provided by SHOWCASE Co., Ltd. that performs identity verification (public personal authentication) using the IC information of the My Number Card. By using this application, it is possible to obtain the IC data of the My Number card and determine its validity,…”