i felt viber consume more battery than whatsapp...

well yes it is... but i do not exit the app...

well for 3G network normally it will last till around 3pm to reach 25%...
but with viber on it last till 1pm reaches 25% already...
for edge/gsm it will last till 5~6pm before it reaches 25%...
with viber on i think it reach around 3pm only...
(that is in average) my worst case with viber on 3G network is b4 12pm my battery drop below 30% already...

i'm using Desire Z from Maxis
with custom Kernal OC to 1.5GHz (max) (2.6.35.13-virtuous-sense-v3.1.0), currently OC to 1.2Ghz (On Demand), screen sleep back to normal 800Mhz...
ROM is most current Rooted Gingerbread ROM (Build 2.42.405, Virtuous V2.0)) from HTC customised by Virtuous group...
Baseband is 12.28e.60.140fu.....

yea now i need to exit after i use it... but no such problem with whatsapp... i'm willing to pay few ringgit and get back my battery life... btw that few ringgit just enough for you to have a light breakfast now... so no need to say it is free or not... is like you pay RM1 for a normal roti canai and paying RM2 for a higher class one and also taste better which you would prefer???