When comparing mSecure vs LessPass, the Slant community recommends LessPass for most people. In the question“What is the best cross-platform password manager?” LessPass is ranked 14th while mSecure is ranked 28th.
Ranked in these QuestionsQuestion Ranking
Pro Cloud & Wi-Fi sync
mSecure offers syncing through cloud storage services such as Dropbox and iCloud and a possibility to sync locally over Wi-Fi if you opt not to use cloud storage.
Pro Does not depend on the cloud
mSecure doesn't force backing up your passwords to their servers.
Pro Open source
Pro Really platform-free
Pro Doesn't store passwords
If it's not stored, it can't be stolen.
Con Can't autofill
mSecure won't automatically fill in forms, including login forms, like most other password management apps do.
Con Can't capture passwords
Con Cannot store existing secrets
Existing secrets (aka passwords) cannot be stored with deterministic password managers. In order to use LessPass effectively, you will need to change your password on every site.
Deterministic password managers have many drawbacks.
Con Easily cracked with exposed/compromised master password
Since anyone can use LessPass with the same parameters as you, all they need is your master password (which could be obtained through keylogging or numerous other methods) to gain access to every one of your site passwords.