Coparent
Your record, on your phone, ready for court.
Coparent is a neutral, factual custody and communications log for separated parents. Every exchange, message, and expense is captured in a tamper-evident hash chain and exported as a court-ready PDF on demand. Solo-parent mode is first-class — the app works fully for one paying user even if the other parent never joins.
Coparent
parenting
Your record, on your phone, ready for court
What you get
Coparent was built for exactly this.
The core features that make Coparent different from the generic alternatives.
Tamper-evident exchange log — every pickup and dropoff is hash-chained and server-signed
Court-export PDF generated server-side with full cryptographic chain included
Neutral coparenting messaging with optional AI tone-check (opt-in, never auto-sends)
Shared custody calendar with month and agenda views
Expense tracking with receipt photos and split balance (paid tier)
Chain verification screen shows record integrity at a glance
A look inside
See it in your hands.
A note from the studio
“The hardest constraint we gave ourselves was 'no deletions, ever.' A record that can be scrubbed is not a record. Everything you log stays, even corrections — they reference the original and append. That decision shaped every screen.”
How it works
Three steps. No account. No tracking.
01
Log what happened
Tap to record a pickup or dropoff — time, location, notes, optional photo. The entry is immediately appended to your tamper-evident chain and cannot be edited or deleted.
02
Communicate on the record
Send and receive messages inside Coparent. Every exchange is timestamped and stored. The optional tone-check suggests calmer phrasing before you hit send — you always review the rewrite first.
03
Export when it matters
Request a court-export PDF at any time. The server formats the full chained record with cryptographic verification details and delivers it via share sheet or email — ready for your attorney.
Not shipped yet
Notify me when Coparent ships.
It'll launch at $9 / month or $79 / year. Free tier: respond-only tier for the non-paying coparent — receive messages, confirm exchanges, view shared calendar..
One email when it lands on the App Store. No drip sequence.
No spam. No tracking. Email only — unsubscribe with one click.
From the journal
Notes on the practice.
- 01
Kids Forgetting Things Between Two Houses: Why the Retainer Is Always at the Other Parent's and How to Actually Fix It
Kids forgetting things between two houses isn't carelessness. It's how memory works. Here's the science behind the forgotten retainer and a fix that ends the fights.
2026-10-26
7 min read
- 02
Should Your Child Call the Other Parent During Your Custody Time? Why It Feels Like an Intrusion and Why It Isn’t
Your child calling the other parent during custody time can feel like an invasion of your home. Here’s why attachment research says the call helps, and how to set it up.
2026-10-25
7 min read
- 03
Kids Keeping Secrets Between Two Homes: What "Don't Tell Mom" Really Means After Divorce
Kids keeping secrets between two homes aren't being sneaky. They're managing a loyalty problem too big for them. Here's what's underneath it, and how to take it off them.
2026-10-25
7 min read
- 04
Helping Your Kids Get a Mother's Day or Father's Day Gift for Your Ex: The Small Gesture That Lets Them Love Both Parents
Helping kids with a gift for the other parent after divorce feels unfair. Here's why that small, swallowed-pride errand matters more to your child than you think.
2026-10-25
7 min read
- 05
When Your Child Wants You to Get Back Together After Divorce: The Reconciliation Fantasy and How to Answer It
When your child wants you to get back together, it isn't naivety. It's a strategy to survive a loss. Here's what the wish really means and how to answer it honestly.
2026-10-24
7 min read
The dispatch
A dispatch from the studio.
One short letter every few weeks. What we launched, what we cut, what we learned. No tracking pixels. Unsubscribe in one click.
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