The 1.0 version of Flappy Defense for Mac was available to download on the developer's website when we last checked. We cannot confirm if there is a free download of this app available. We recommend checking the downloaded files with any free antivirus. This free software for Mac OS X was originally created by Dyad Games. Flappy Defense for Mac is categorized as Games.
From the developer:
Flappy Defense is an epic defense game. You need to destroy birds by shooting off cannonballs from a customizable pipe. Defeating bosses loots you diamonds to purchase powerful items at your side. You need to continue fighting the oncoming waves to become a Flappy Defense master.
You may want to check out more Mac applications, such as Impossible Flappy, Flappy Sky Bird or Flappy Fly HD Free, which might be similar to Flappy Defense.