SWTCoin mining can be extremely volatile. It is not uncommon to have ROI swings of 50% from one month to another. Moreover, because profitability is contingent upon SWTCoin price and mining difficulty- two things which cannot be predicted into the future, any calculations made with today's numbers may not be applicable one month from now. Pocket Miner purchase is based on your own decision understanding the above risks. Mining has to be done 24 hours daily with good internet connectivity and constant interaction with the mining screen. For best results Every two hours it is adeal to sign out and sign in to the mining screen. Mining screen has to be on and top always for mining to continue. Since mining revenue is also based on ad revenue and watching rewarded videos it is imperative to close any ad that appears on the mining screen in order to continue the mining process.