If your iOS 15 device is running a firmware version compatible with TrollStore (iOS 15.0 to 15.4.1, and specific higher versions via exploits), you can install the Netflix IPA permanently without needing a computer or a 7-day app expiration limit.
Even if you avoid malware, using a modded app comes with its own set of problems. netflix ipa ios 15 new
Use a secondary or burner Apple ID for sideloading software to protect your primary iCloud account from accidental security flags. To help find the right version, tell me: What is the of your iOS 15 device? If your iOS 15 device is running a