For the tech-savvy, the safest (but still against TOS) way to use a "new IPA" is via or SideStore . These tools allow you to sign the IPA with your own free Apple Developer certificate.
Ensure you are logged in with the email address that received the upgrade confirmation . crunchyroll premium ipa new
Crunchyroll Premium costs $9.99/month direct. However, retailers like CDKeys or Eneba often sell 12-month Crunchyroll Mega Fan codes for as low as $45 (roughly $3.75/month). This is the price of a coffee, not a cable bill. For the tech-savvy, the safest (but still against