It may be one of the simplest but nonetheless HIGHLY RECOMMENDED!!
Tawag Pinoy does what it says it will and more. It just goes ahead and do the sorting for you. Makes things easy for new iphone users like myself. Like what the previous reviews pointed out, this is a MUST HAVE for Filipino iPhone users! Great Job ZZ! :)
sol_rojos / red3383 of applei about
Tawag Pinoy - An Addressbook & T9 Dialer for Pinoys