When comparing Cockatoo vs bitwarden, the Slant community recommends bitwarden for most people. In the question“What is the best cross-platform password manager?” bitwarden is ranked 10th while Cockatoo is ranked 35th. The most important reason people chose bitwarden is:
Bitwarden is open source and can therefore easliy be reviewed and checked for security.
Specs
Question Ranking
Pros
Pro Simple password modifiers
Just two optional prefixes to adapt password to each site's complexity requirements
Pro Graphical input method as an option
Gestures allow to remember more with a way less effort
Pro Cross-platform solution
Available as an autonomous web-app + as an add-on for Chrome, Opera and Firefox (desktop and mobile)
Pro Free, open-source
Fully transparent code, which everybody can inspect thoroughly
Pro Industry-accepted hash function
It's based on the famous KDF "scrypt"
Pro No clouds, no vaults
All passwords can be cryptographically derived from a single secret gesture (or a master-password)
Pro Open source
Bitwarden is open source and can therefore easliy be reviewed and checked for security.
Pro Free
It is easy to start as the majority of features are on the free version.
Pro Cross-platform syncronisation
Automatically synchronises across various devices and platforms. Passwords get fully encrypted locally before leaving the computer.
Pro Many browser plugins
There are plugins for Firefox, Chrome, Opera, Edge, Vivaldi and Tor Browser.
Pro Two-step authentication
Offers 2FA with Authy, Google Authenticator or via email.
Additionally, the Pro Version has Duo Security with Duo Push, SMS, phone call, and U2F security keys: YubiKey (any 4 series device or YubiKey NEO) and FIDO U2F (any FIDO U2F certified key).
Pro Extremely strong encryption algorithm
End-to-end AES-256 bit encryption, salted hashing, and PBKDF2 SHA-256.
Pro Native mobile apps for iOS and Android
Pro Strong, easy to use built-in password genarator
No need to think of individual passwords. This can be easily accomplished with an easy to use built-in password manager.
Pro Clean interface with no ads
Pro Multifactor authentication
Cons
Con No native desktop apps
As of September 17, 2017, there are no native desktop apps, although they are due.