TigerText, a company that develops a private SMS app, has raised $1.9 million in angel funding led by Herb Madan and co-founder of Akamai Randall Kaplan.

Launched in February of 2010, TigerText’s mobile apps allows users to send text messages or photos that can then be deleted off both the sender’s and receiver’s phone after a selected period of time.

Once a sender selects the message lifespan (from 1 minute up to 30 days), expired messages are not only deleted from both phones, but are not stored on any server and they cannot be retrieved once expired. Users can also select a “Delete on Read” option, which will delete the text 60 seconds after the recipient opens the message.

Coincidentally, the app launched as the infamous Tiger Woods mistress texts were revealed, with the app’s name even taking on a connection to the scandal. But TigerText’s co-founder Jeffrey Evans maintains that the his apps were not developed as a result of the Tiger Woods scandal.

Evans says that the app, which is available for Android, iPhone and Blackberry phones, will soon add the ability to text video and documents over the private network and that the company will also be releasing an API in the near future.