First up is the "Chips" of the main two Appmon - Gatchmon and Onmon. Think of the Chips like the Medals in Yo-Kai Watch, they basically summon your Appmon in the TV show and are collectables IRL.
Next is the four TCG cards that every 'Mon series seems to have these days. They're updated designs of the old Digimon TCG cards which is pretty cool.
The first two are Onmon and Gatchmon again. They're both "Standard Grade" which is equivalent to Digimon's Rookie/Child Level.
And the other two are their Evolved forms Logimon and DoGatchmon, both are "Super Grade" which is equivalent to Digimon's Champion/Adult Level. Appmon cannot Evolve on their own and instead must "App Gattai" (App-Fuse) in a similar fashion to DNA/Jogress Evolution. Logimon is Onmon who has fused with Gatchmon, while DoGatchmon is Gatchmon who fused with Navimon whom I sadly did not get.