goText A free and open source Java software for ALL mobile phones(MIDP 1.0)to send free SMS,MMS and email through free sms websites,paying only little for mobile connection(1-2 cents)
Matant-TEST Matant, the ultimate cyphering software that lets you text your friends with unknown and secret writing systems.
The TEST lets you only evaluate the product. Download the FULL version here: http://mob.matant.eu
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SafeTxT Totally secure your SMSs, contacts, and personal data with military strength encryption