The free plan
A free co-parenting app that stays free
The BestInterest Basic plan is a full co-parenting toolkit — no credit card, no expiration, no records held hostage. Start today and upgrade only if you want more protection.
Everything included, free forever
Secure messaging
Message your co-parent in one documented place. Every message is timestamped and preserved — no more scattered texts and disputed conversations.
Coparent Coach
Three AI coaching sessions every day. Draft a hard reply, decode a manipulative message, or plan a difficult conversation — the coach keeps you calm and child-focused.
Calendar
Keep custody schedules, exchanges, and events in one place, built around two-household life.
Private journal
Document incidents, milestones, and patterns as they happen. Entries stay private to you and preserve what you wrote at the time.
Expense tracking
Log shared expenses with amounts and dates, so money conversations run on records instead of memory.
Shared tasks
Track the to-dos of raising kids across two homes — school forms, appointments, supplies — without another argument about who forgot what.
Data exports — all of them
Export your messages, journal, expenses, tasks, and calls as CSV files, free. Your records belong to you — data exports are never behind a paywall.
From a real co-parent
“The coach is amazing. They don’t let hateful or wrong information pass, it’s just a huge help and a relief.”
Works together — and works alone
Invite your co-parent and they join free too: messaging, the calendar, and shared tools cost neither of you anything. And when your co-parent refuses any app,Solo Mode — included on every plan — still works for you: journal privately, track expenses, and use the Coparent Coach on your own. Paid plans addBoundary Line, which routes your co-parent's regular texts through BestInterest without them joining at all. Protect and Protect Plus add Message Shield filtering for eligible incoming messages.
When you want more, the paid plans add it
- Connect — Boundary Line (message without your co-parent on the app), photo sharing, video and phone calls, co-parent scheduling, and verified reports.
- Protect — The AI protection layer: Message Shield, Tone Guardian, Smart Silence, parenting plan support, and unlimited coaching.
- Protect Plus — A dedicated phone number, plus call recording and transcription.
Frequently asked questions
Is BestInterest really free?
Yes. The free Basic plan does not expire and does not require a credit card. It includes secure messaging, a calendar, daily Coparent Coach sessions, a private journal, expense tracking, shared tasks, and free exports of all your records.
Does my co-parent have to join for the free plan to work?
Messaging and shared tools work when both parents are on the app — and your co-parent joins free too. Solo Mode is included on every plan, so the journal, Coparent Coach, expense tracking, and exports work on your own. If your co-parent refuses any app, paid plans add Boundary Line, which routes their regular texts through BestInterest.
What is the catch? How does BestInterest make money?
Paid plans fund the free one. Because the AI safety tools require strict privacy and security, BestInterest charges for advanced protection rather than selling data or running ads. The free plan is a real plan, not a teaser.
What do the paid plans add?
Connect adds Boundary Line, photo sharing, video and phone calling, co-parent scheduling, and verified reports. Protect adds the AI protection layer: Message Shield, Tone Guardian, Smart Silence, parenting plan support, and unlimited coaching. Protect Plus adds a dedicated number plus call recording and transcription.
Is the free plan the same as the free trial?
No. The free Basic plan never expires. Separately, eligible accounts can start a 14-day trial of a paid plan to test the premium protection tools; when a trial ends, the free plan and all your records remain intact.
Start free today — no credit card, no expiration.