I recently installed the Wakanim app on the Ps4. When I registered, I noticed that you need a premium account to use the Ps4 app. However, I only want to see 1 anime and it doesn't last very long (Demon Slayer, 26 episodes), which is why I don't want to pay a premium. Now I ask myself whether it is possible to use Wakanim in the Ps4 internet browser? I don't want to start the free test phase for the app
Why don't you take the test phase? The series can only be viewed in browser mode via registration.
Alternatively, GameStop offers prepaid cards for a certain period of time, which then expire. You still need an account.