100% useless & destroyed my phone.I initially gave a 1 star review because the app won't connect to my router rendering it utterly useless. Decided to go through the reviews to make sure it wasn't just me but lo and behold there are HUNDREDS of one star reviews describing the exact same issue. Imagine my shock when I saw a review from a person who also lost their phone to this garbage. Exact same blinking screen then poof. Phone won't turn on. Wish I could bill them the deductible to replace it.