Keep the conversation about the kids.
One record · Two products
Messages and Calendar, on one sealed record
Each is complete on its own. Together they keep the whole story in one place — what was said, and who has the kids when.
Treaty Messages
- Every message sealed into a tamper-evident record — no edits, no deletions
- Read receipts sealed into the record — when it was first seen, provably
- Court-ready PDF exports, each with its own verification code
Treaty Calendar
- Your custody schedule, clear at a glance — both parents see one truth
- Swaps proposed, accepted, and sealed on the record
- Syncs to Google Calendar — custody next to work and school
Better together — one subscription, both parents covered
Less time arguing about what was said. More time being their parent.
When the record keeps itself, nobody has to play messenger, nobody has to keep screenshots, and the kids never end up in the middle.
The conversation, kept honest
The thread
The record that can’t be rewritten
Every message is sealed with SHA-256 to the message before it, the moment it’s sent. There is no edit button and no delete button — for either parent, or for us. What was said is what the record shows, forever.
- Read receipts are sealed into the chain — not just “delivered,” but when it was first seen, provably.
- Urgent flags are part of the record too — using one is permanent and visible.
- On your phone and on the web — same record, same seal.
Private sharing
Your attorney sees everything. Your co-parent sees nothing change.
Each parent can privately grant read-only access to their own attorney or mediator. The other parent is never notified, never sees the viewer list, and viewers never appear in the record or in any export.
- Viewers can read — never write, never export on your behalf, never leave a trace.
- Revoke access at any time, instantly.
Tone & quiet
Calmer, on purpose
Before a heated message sends, Treaty quietly offers a calmer way to say the same thing. It never blocks you and never changes your words — the choice is always yours. And because every message is permanent, most people find they write like the judge is reading. That’s the point.
- Quiet hours and a daily digest keep co-parenting out of your evenings.
- Urgent messages still get through — and urgency is on the record.
- Notification emails never contain message content. Only: who wrote, and when.
The schedule, out of dispute
The schedule
One schedule. One truth.
The custody schedule both parents see — the same month, the same handoffs, the same holidays. Set your rotation once, and every exception is laid out day by day where nobody can misremember it.
- Custom rotations — 50/50, 2-2-3, alternating weeks, or your own pattern.
- Holidays and school breaks override the rotation — visibly.
- Syncs to Google Calendar, so custody sits next to work and school.
Change requests
Schedule changes, sealed like messages
A swap isn’t a text that gets deleted or a call nobody can prove. In Treaty, a proposed change is sealed the moment it’s made — and so is the answer. When it’s accepted, the calendar updates itself, and the new day points back at the sealed agreement.
- Propose, accept, or decline — every step is a permanent part of the record.
- No quiet takebacks: withdrawing a proposal is itself on the record.
- Accepted swaps appear on the calendar, linked to the sealed agreement.
Underneath both
One sealed record. Ready for court.
Messages and schedule changes are sealed the same way, into the same chain — and the whole record exports in one click.
Write
Message like you always do — and propose schedule swaps right in the flow. A gentle tone check helps heated words cool down before they send.
Sealed
Every message and every schedule change is sealed into a cryptographic chain the moment it happens. No edits, no deletions — not by either parent, not by us.
Verifiable
Your attorney, a mediator, or a court can confirm the record is intact — online or locally, free, no account needed.
Export & verify
Court-ready in one click
Export a clean, organized PDF of the full record anytime — messages, sealed read receipts, and schedule changes together. Each export carries a short certificate code anyone can check on a public page: opposing counsel, a mediator, or the court. The math travels with the document.
- Included with Treaty — no per-page fees, no certification charges.
- Designed around how courts authenticate records: who, when, and proof it’s intact.
- Verification reveals no names and no messages — only integrity.
Why Treaty
Three ways apps protect a record
Most apps ask you to trust them. Some sign the exported file. Treaty seals every event — and lets anyone check.
Most co-parenting apps
“Trust us”
The vendor promises messages can’t be edited, and certifies copies on request.
How it’s protected
A policy promise — “we don’t allow edits.”
Who can verify it
The vendor, on request — often via affidavits or subpoenas.
What it costs
Certified copies and affidavits typically carry fees — sometimes per page.
If something changed
You’d have to take the vendor’s word that it didn’t.
Better apps
Signed PDF
Exports carry the vendor’s digital signature, provable in the right software.
How it’s protected
A digital signature on the exported file.
Who can verify it
Anyone with the right desktop software — the signature vouches for the file as a whole.
What it costs
Free to check the file; questions about the record itself go back to the vendor’s archive.
If something changed
The file’s signature breaks — but it speaks for the file, not for each message inside the record.
Treaty
Hash-chained record
Every event is cryptographically sealed to the one before it, the moment it happens.
How it’s protected
SHA-256 chain — messages, receipts, and schedule changes, sealed at the moment they happen.
Who can verify it
Anyone — with a short code on a public page, or locally in the browser. No account, no special software.
What it costs
Nothing. Certificates are part of every export.
If something changed
The chain itself breaks — visibly, at the exact event.
Comparison describes common industry approaches, not any specific product.
For attorneys & mediators
Do you work with co-parents?
Read-only client access that leaves no trace, exports designed around authentication, and a certificate you can verify yourself in about thirty seconds — before anything is filed.
How professionals use TreatyQuestions
Asked by parents. And by their attorneys.
Will a court accept a Treaty record?
Admissibility is always the court’s decision, under its own rules of evidence. Treaty is designed around how records get authenticated: timestamps sealed at the moment of sending, a verifiable chain, and a certificate that anyone — including opposing counsel — can check independently before anything is filed. Your attorney can verify an export themselves, in about thirty seconds.
Does the calendar show up in the export?
Yes. Schedule changes — proposals, acceptances, declines — are sealed into the same chain as messages, and every export includes them alongside the conversation, with the same verification certificate covering it all.
Can we use just Messages, or just the Calendar?
Yes — each works on its own, and they’re better together. Either way there is one family record underneath, and one subscription covers both parents.
Can Treaty employees edit or delete messages?
There is no edit or delete capability in the product — for parents or for us. And because every event is chained to the one before it, an alteration couldn’t be silent: verification would fail at the exact point of the change, for anyone who checked.
Will my co-parent know I shared the record with my attorney?
No. Each parent can privately grant read-only access to their own attorney or mediator. The other parent is never notified, never sees your viewer list, and viewers never appear in the record or in any export.
Is Treaty end-to-end encrypted?
No — deliberately. Treaty keeps a server-readable, neutral record: encrypted in transit and at rest, but built to be shown to a court, not hidden from one. End-to-end encryption would make a neutral, verifiable record impossible.
What shows up in notification emails?
Only the sender’s name and the time. Message content never leaves Treaty — so nothing sensitive ever lands in an inbox, a lock screen, or someone else’s hands.
Start the record today.
Stop arguing about yesterday.
Messages and the custody calendar, on one sealed record — try everything for 30 days. Set-up takes about two minutes, and one subscription covers both parents.
e3b7…d09c → 44f1…a2d8 → 9f2c…8a41 → sealed