Have you experienced inordinate battery drain vs. the same amount of texting with the native texting?
that is hard for me to say because i started downloading and using textfree when my iphone 4 was only a week or so old and it was during the phase when i was dowloading a lot of new apps that use push.
also, i am upgrading from a 8gb 2g 1st gen iphone, so a lot more apps are available to me now than before. i am using my new iphone in ways i never dreamed of using my old one.
that said, i do notice that my brand new iphone 4's battery life generally cannot make it through a day whereas my old iphone could go 2.75+ days on a single charge when it was less than 1.5 years old (eventually going down to about 1-2 days a charge when it was older). i believe my heavier use and more push apps in general are the main culprits.
last night, after reading this thread, i did some internet research on textfree and battery life usage and found nothing determinative even though some reviews vaguely alluded to it.
i have decided, though, that i should discontinue using textfree b/c i don't want the battery to eventually be reduced to a third of a day by the time it is 1.5-2 years old (which is how long i plan on having my phone). i figure anything i can do now to preserve the longevity of my battery life is worth doing, even if it means paying some extra money for 1500 texts messages. also, i miss group texting, picture texting, and the speed of the native texting app on my phone. i found textfree to be a satisfactory substitute because it was very reliable and similar to native texting even though at times i wished it was faster.
i still have textfree running in the background, but i am planning on opening it only if people send me a text to that number, which should quickly decrease because i will reply with native texting.
i will report if i notice any difference in my battery usage in a few days.