In my experienced it is more faster and convenient to use your mobile for getting free bitcoins. But activities on the mobile are additional to your personal computers. If your at home you can use your computer and also the mobile gadgets but outside its more practical to use the gadgets.
Registering with Alien faucet sites and faucets , you use the computer to activate the different programs but the introduction of mobile gadgets makes it more easier to get free bitcoins and used the programs because you can do it on your mobile phones or gadgets. Whenever you are ready , whenever your on any place, anywhere as long as their is signal for you gadget then your will earn bitcoins, And earnings its guaranteed to earn more.
there are a lot the only thing that will deter you is the the time to spent but surely every week you will have free bitcoins on your bitcoin wallet.