Trust Builder is for people who are working to build or rebuild trust with another. The trust builder might be a teenager needing to build trust with his or her parents, or someone who has had an affair and is trying to rebuild trust with his or her partner.
By running Trust Builder and keeping it running, the app will record the users location and environment (via intermittent audio recordings and photo capture), saving these in a secure part of the phone. This secure part is locked and only the trust giver (the parent or partner) has the code to unlock it. Trust Builder will email the trust-giver a summary of the collected data at specified intervals, and the data can be reviewed on the phone by the trust-giver as needed.
This is not a spying program. The phones owner does not have to run Trust Builder, and the phones owner can quit Trust Builder whenever they like. Of course, that behavior does not help to build trust with anyone.
If you are working to build trust with someone else, give Trust Builder a try. After you have built up some trust, you wont need to run it anymore!
Note that because this app does location tracking (via GPS) even when it is in the background, it can dramatically decrease battery life. When battery life is important, you may want to quit the app (although then you wont be building trust).