Why Does BestInterest Need My Coparent's Number?

For many of our customers, it’s hard to get their co-parent to agree to anything — let alone using an app together to reduce conflict. That’s why we developed Boundary Line for parents using Solo Mode.

With Solo Mode, you use BestInterest by yourself. Boundary Line adds SMS communication: when you send a message to your co-parent, we deliver it to them as a text. Your messages arrive as ordinary texts from your assigned number. This does not guarantee that use of BestInterest is undiscoverable.

To make this possible, BestInterest assigns you a new dedicated phone number — one your co-parent can use to text you. You simply tell them you have a new number where they can reach you. Texts sent to that number flow through BestInterest for organization and record-keeping. Boundary Line requires Connect or higher; incoming Message Shield filtering requires Protect or higher. Texts sent to your personal number remain outside BestInterest.

Saving their number does not send them a personal message.

Entering their number does not alert or notify them in any way. You stay in full control of when and how communication begins.

Even if you’re not ready to message yet, saving your co-parent’s number helps us prepare your account in case you decide to start later.