As an avid user of gmail, i have been very familiar with its security features (or lack thereof). I've used other email clients as well but nothing beats that ease to use & safety associated w/ this product in my mind! Nothing really specific about flowcrypt itself - just overall best option out there given it's easy-to-use nature when compared to others available online at similar pricing points. Easy access & no hassle regarding installation or setup since both server & client require one connection from your end only via any web browser such like chrome / firefox etc.