people are gonna bash it cause it's a "cheap" way to scan your car. Everything has it's ups and downs and some people have more money to spend then others. If it works for its purpose then it works. There has been many updates to the program and it gets updated every other week when the programmers of the app figure out ways to make it better. KR wasnt an option for torque for a while until they updated it. Who care's about battery life, just keep it plugged in. Most people who use it with their every day cell phone are people who still text and drive so they arent gonna mount it in the dash. I used it for a day on my cell phone and everything worked fine. A tiny bit delayed but stil worked. I had results for each pirameter. Accuracy, not sure. I can't be sure on accuracy because i have nothing else to scan with. I have an iphone as my everyday phone and only activated my old droid to try the app and see if i would go back to it when i finally start modding.
Hope everyone up and coming that doesnt have a scan tool and a droid throws $5 down and gives it a shot. It may save you $150-$200.
