I use calorific and lost 3 kgs in 4 weeks and I do nothing else than writing down what I eat (calories' intake). But it really works for me. Its not an "android appstore" app, you cant find it on Google Play. It was suggested from my lg phone. Try it.
BUT THATS EXACTLY THE POINT!
WHEN U SEE A LITTLE PIECE OF CHOCOLATE THAT CAN CREATE U A CRAVING, YOU WILL IMMEDIATELY SAY NO, AS YOU WONT BE WILLING TO OPEN THE APP AND WRITE IT DOWN. IF U R AS LAZY AS U CLAIM TO BE.
MOREOVER, WHEN U HAVE FEW CALORIES LEFT FOR EXAMPLE IN THE LATE AFTERNOON AS IT CONCERNS UR DAILY INTAKE (WHICH IS ESTIMATED BY THE APP ITSELF) YOU WONT EVEN FEEL THE TEMPTATION TO EAT SOMETHING ELSE RATHER THAN UR DINNER AS U'LL KNOW THAT U WILL EXCEED THE LIMIT.
IT WORKS QUITE WELL, TRUST ME ON THAT!!