Only the current version so far — new entries appear as the app ships updates.
Fathom: Familiarisation System is a tools app by Sentini Marine with 1,000+ downloads (about 3.7K estimated). +70 installs in the last 7 days. Released Feb 5, 2021. Install growth, rank history, SDKs and ad networks.
From the store listing: “Bespoke familiarity tool for crew, improving safety by increasing knowledge.”