When it comes to Unlimited Service nothing can beat Sun Cellular. Sun Cellular just recently introduce their new Unlimited Offering the "Sun Power Text Unlimited 200". For just 200 Pesos a month you can get the following.
1. 1 month Unlimited Sun to Sun Texts
2. 4 Hours Free Sun To Sun Calls
and here's the best part
5. 500 free text to all networks.
if we are gonna do the math 200 pesos per month is just 6.66 pesos per day, its so cheap.. its even cheaper than your multivitamins.
if you dont need the 500 free text to all networks you can try Sun's Text Unlimited 150. you can get still get the unlimited texting and 4 hours free sun to sun calls. thats only 5 pesos a day.