"stops working" way too often. & that prompt is displayed after an eternal "freeze" where absolutely nothing works! Guys... 6 adds at the same time, overlapping on one tiny smartphone screen is torture!!! Being able to read only 1 line (of a page long article) due to too many adds are torture!!! Promissing you will not show add again, but pop it right back into my face is an insult of my intelligence... I could go on .. I would love to give "minus Stars" instead!!!