New boost buildings not on droid?

[Cuombajj]

I have 20 Gold boost buildings available for purchase.
If I'm going to fire up the Droid for free gold what is the name of the building that gives a 100% increase?

Old 100% buildings were Defense Outpost and Swarm Tower.

And the new ones are supposed to be all 100%: Badee Bandook Tower, Jel Va Fortress, Sena Taxi Co, Eendhan, Scarab Pyramid, Desert Watch Tower.


Also there is this old building Tactical Op Post, which gives bonus attack to ALL unit types. So even though it's 80% the value for money is greater than any other boost building so be sure to build 2 of those first