ADAMANT IS A UNIQUE PRODUCT—IT’S THE ONLY PRIVATE MESSENGER OPERATING ENTIRELY ON A BLOCKCHAIN. READ WHY BLOCKCHAIN CAN SOLVE SECURITY FLAWS, TYPICAL FOR P2P AND CENTRALIZED MESSENGERS, AND OFFER SUPERIOR PRIVACY AND SECURITY.
Light, simple in-use, quality messenger. The only "disadvantage" is that you have to pay for each message. There is competition on the market, that allows for the same security of messaging (by using different technology), so that's the only real problem. Otherwise its as good as it gets