It is VERY hard to make 0.1BTC these days through faucets, with the value of Bitcoin being so high. It would literally take you almost a year to accumulate that amount yourself, from faucets alone.
However, if you're willing to put the time and effort into advertising your referral links through things like Mellow Ads banner campaigns, you can increase the earnings significantly - provided you have enough 'Active' referrals who visit the site regularly. Again though, lots of time and effort and you'd also need to be willing to spend some Bitcoin for advertising.
If you have a blog, strong social media presence, or otherwise captive online audience, it may be easier for you to build a significant number of referrals without having to spend too much on advertising. But again, this is no easy feat and as others have already said, you'd probably earn more spending that time doing something else.
Faucet 'Apps' are mostly a sham. You won't earn anything, and they will only waste all your data and make your phone hot enough to burn a hole through your pocket. Not to mention all the malware these apps usually come with.
The good faucets, where you can actually earn a respectable amount are:
FreeBitcoin
BonusBitcoin
MoonBitcoin
Bitfun
FaucetPlanet
MulticoinFaucet
SwissAdsPaysFaucet
GameFaucet
Hope that helps!