(San Francisco, CA ) September 12, 2017 – Black Angel Tech Fund (BATF) announces its investment into On Second Thought (OST), a messaging solution provider with proprietary solutions that allow users to undo texts, financial transactions, social media posts and other forms of mobile communication before they post and/or get delivered. For all those times when you hit send and think ‘oh shoot, I didn’t mean to say that!’ you can get the message back. “OST serves as an excellen