ecco risolto il problema della gratuità tra utenti registrati su fishtext, direttamente dalla guida on-line http://www.fishtext.com/ft_problem.html
Messages sent to another FishText user will only be free if the recipient's phone is running the FishText mobile application with the following settings enabled:
Receive type > Allow free SMS
and
'Check incoming' is set to a value of 10 minutes or less
You should also check that your 'Send type' setting is set to 'Attempt to send for free first'. This can be set on the FishText mobile application by selecting Options > Settings > Send type > Send for free first and online by logging in to your FishText account, following the 'Settings' link and changing the 'Send Options' to 'Attempt to send for free first'.
If any of the three criteria detailed above is not met, you will be charged for sending messages to another FishText user as the message will be delivered via the mobile networks rather than via the FishText server.
Per approfondire l'argomento vi consiglio anche questo thread su un altro forum http://www.hotukdeals.com/item/42630...via-fishtext-c