Free 6 Month Bitdefender Total Security 2018 Subscription

[Definitions]

https://www.bitdefender.com/media/html/consumer/new/get-total-security2018-opt/?utm_source=sharewareonsale&utm_medium=sharewareonsale&utm_campaign=sharewareonsale

[myi]

https://www.bitdefender.com/media/html/consumer/new/get-total-security2018-opt/?utm_source=sharewareonsale&utm_medium=sharewareonsale&utm_campaign=sharewareonsale

So which one is a better solution?
I had till now micro trend from best buy which I loved but its expiring in 2-3 weeks unless I can find someone willing to give me the code to extend mine as any best buy order with a laptop or other items include the free software which allows 3-4 devices to make use of it which I doubt they use, will gladly take one.
  Now if that doesn't happen which is best to use for my mobile phone s7 ?
  This Free 1-year subscription to McAfee Multi Access
 or this one from the op?
Tia

[Definitions]

So which one is a better solution?

From the little bit of research I did it seems that Bitdefender is better. But it's also only 6 months.