OTP Manager 2.1.9 for Mac was available to download from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. The latest version of the program can be installed on Mac OS X 10.9 or later.
OTP Manager for Mac lies within Security Tools, more precisely Personal Security. The actual developer of this free software for Mac is Sticky Bit - Carlos de Boer Ver Voorn. We recommend checking the downloaded files with any free antivirus. The following version: 1.2 is the most frequently downloaded one by the program users.
From the developer:
This program is a manager for HMAC based on One Time Passwords, as used by Google, Facebook, Dropbox, and many more. You can copy the OTP tokens right from the manager instead of typing them over from your mobile phone screen. You can drag your tokens in the order you like to work with.
You may want to check out more software for Mac, such as Soccer Manager 2015, MeD's Movie Manager or Home Loan Manager Pro, which might be similar to OTP Manager.