Evolution Stage

An Evolution Stage (進化段階 Shinka Dankai), also referred to as Level (レベル Reberu), is the level of development a Digimon is at. There are six stages of normal evolution, after hatching from a DigiTama, through which a Digimon can naturally go through. Starting with Baby I and progressing to Ultimate, although getting past Adult before death may be difficult.

There are also two artificial stages of evolution, which can be accessed through the use of a Digimental or a Legendary Spirit to get to Armor Level and Hybrid Level, respectively.

The Super Ultimate level though, is not actually a level of evolution, but more like a title that is given to a specific species of Digimon to demonstrate that it has surpassed the usual power level of an Ultimate level Digimon, and because of this, a Digimon could be considered a Super Ultimate level Digimon in one universe but not in others.

Appmon (short for Appli Monsters)'s Evolution Stage, referred to as Grade (グレード Gurēdo), is a bit different from Digimon's, in which Appmon's evolution always requires a pair of compatible Appmon that are able to upgrade each other's functions enough so that they can perform an AppGattai that allows them to evolve to the next stage of evolution.

It is also notable that Appmon's Ultimate level is supposed to be in pair with Digimon's Ultimate level.