Most users do not need third-party apps. Your operating system has built-in contrasena systemtutos.

The Contraseña Systemtutos is not the most convenient password system, nor the fastest. It is, however, one of the most teachable and resilient systems for high-risk training environments. It transforms password management from a passive chore into an active cognitive exercise—proving that sometimes, the best security is the one you carry in your head, not your cloud.

Do not create a file called passwords.txt on your desktop. Malware scans for exactly that. If you must write it down physically, use a pen and paper locked in a drawer.