Pysl lets you filter SMS conversations by setting up a blacklist and hiding messages from specific contacts. You can even set a password to protect your hidden message area.
What's new in 0.91b1?
- SMS privacy: enable sound notification only (wihout popup) for unfiltered SMS
- filtered SMS/call notification reminder with delay
- translation in Russian and Italian include in installation package
-wrong name display under SMS/call history
Learn how to use Pysl here