Only the current version so far — new entries appear as the app ships updates.
可愛い文字にフォント変更, フォントくん is a tools app by Lisfee, Inc. with 50,000+ downloads (about 85K estimated). +15 installs in the last 7 days. Released Mar 17, 2020. Install growth, rank history, SDKs and ad networks.
From the store listing: “Font conversion app that allows you to post to Instagram and Twitter in cursive and syllabary”