The only app that I've installed is ForecaWeather. I've used it a couple of times. But the stats that I've given are even when the app has been taken offline. The way you've described your usage, I would love to have that 20% remaining at the end of the day......that would be tremendously better than having to recharge the phone 2 sometimes 3 times a day. Oh and I charge using the charger. The charging using the USB is taking awfully long. The 2+ weeks of having the phone, I'm pretty sure I've gone through 30+ cycles of recharging the phone and still do not see any improvement in the battery life. Hope you have better luck with yours.