Build your class's list - spells or abilities - and carry it. How should it look?
You can change this later in settings.
Nothing saved yet. Lists stay on this phone.
Practice for a guildmaster's class test. Your answers stay on this phone, and this is not a credit - guildmasters give those.
Ask them to open their list and tap Send to another device, then scan the code it shows. Everything they hold comes across, with how often each may be used.
A class and level gives everything the level table grants. A caster's bought spells and a martial class's picks are only on their phone; add those with Add an ability afterwards.
To send one list, open it and tap Send to another device. To move all of them, export a file here and import it on the other device.