Forward it, we draft it
Forward a receipt or school email. It becomes a private draft only you see until you file it.
forward@sharedanchor.comYou review, then file or share
30-day free trial · One plan covers both parents
The co-parenting app that does the busywork for you.
Expenses, custody days, payments, and messages live in one shared record neither parent can quietly change. AI drafts expenses from your receipts and emails, and ChatGPT or Claude can answer questions about the record. You approve everything.
- Both parents see the same record and the same rules
- $7/mo covers both of you, no card for the trial
- No read receipts or last-seen status
- No AI account needed
No credit card required · No app required for payee
SharedAnchor is on iPhone and Android. Free to download, and it works the same as the website. Sign up here, then sign in on your phone.
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ClaudeSeptember check-in
Where do we stand on September expenses, and who has the kids this weekend?
Used SharedAnchor integration
You're even for September. All three shared expenses were approved and reimbursed:
- Pediatric dentist - $84.20, split 50/50
- Soccer registration - $130.00, split 50/50
- School supplies - $71.00, split 50/50
This weekend the kids are with your co-parent on Friday and Saturday, and back with you Sunday at 6:00 PM.
Reply to Claude…
Illustration with sample data. ChatGPT and Claude can read your record but can't change it.
- Same record for both parents
- Past entries can't be quietly edited
- PDF exports for your attorney
- SharedAnchor never holds money
What it does
Money, time, and who said what, in one place.
Shared expenses
Log an expense with the receipt, split it the way your plan says, and let your co-parent approve it. Every step stays in the history.
Custody calendar
Set your rotation and holidays once. Swaps are requested and agreed in the app, so there's a record of what you both said yes to.
Payment records
Pay each other by Venmo, cash, or check, then record which expense it settles. SharedAnchor never holds your money.
Messages
Talk in threads tied to the expense or swap you're discussing. Messages can't be edited or deleted, so there's a clear record of who said what.
A record you can both trust
Nothing gets rewritten after the fact.
Every entry is locked in order and the day's entries are sealed together each night. If anyone changes an old entry later, the change shows. When you need it, export the record as a PDF your attorney can check.
Expense added
Dentist · $84.20
Approved
By your co-parent
Payment recorded
Venmo · outside SharedAnchor
Day sealed
Locked with the rest of the day
How attorneys check the record (SHA-256 hash chain with a daily Merkle root)
AI that saves typing
Let AI do the paperwork while you make the decisions.
Forward a receipt and it's drafted for you. Every AI suggestion waits for your OK, and nothing reaches your co-parent until you send it.
Parenting plan to calendar
Upload or paste your parenting plan. AI drafts the rotation and holiday rules for you to confirm.
PDF or pasted text
You confirm each rule
Ask AI in the app
Ask where things stand, or have it draft a swap request or an expense split.
"Can I swap Oct 9-11 for Oct 16-18?"
You confirm before it's sent
Ask ChatGPT or Claude
Add SharedAnchor as a connector and ask about balances and the schedule in the chat you already use.
Read-only access
AI only reads what you both already see
ChatGPT and Claude can look up the shared record. They can't send, change, or share anything.
Not used to train AI
In-app AI chats are kept for up to 24 hours and aren't used to train AI models.
No legal advice
The assistant organizes your facts. Questions about your custody order go to your attorney.
Pediatric dentist$84.20
CategoryMedical
Split50 / 50 per your plan
Share with co-parentEditDiscard
Example with sample data.
Do I need ChatGPT or Claude?
No. Every feature works in the SharedAnchor app and website. Connecting an AI tool is optional.
What can a connected AI see?
The shared record you and your co-parent both see: expenses, payments, and the custody schedule, including your children's names and your co-parent's display name. It can't change anything.
Pricing
$7/mo per pair
One subscription covers both co-parents. $8.99/mo if you sign up inside the iPhone app instead — either way you get everything, on the web and on your phone.
See full pricing and comparisonFor attorneys
Records built for professional review
Append-only history, SHA-256 hashes, and a daily Merkle root, so exports can be checked against what SharedAnchor stored.
How attorneys use SharedAnchorExpense guides
Set up a shared expense record
Start with the rules you both follow, then choose how to record each cost and reimbursement.
FAQ
Questions parents ask first
Clear answers before either parent is asked to create an account.
What does SharedAnchor track?
The stuff that actually causes co-parenting fights: who paid what, when, and whether it lines up with the custody schedule. Everything lands in one append-only ledger, tamper-evident and exportable as a PDF.
Do I need to pay for my co-parent too?
No. Invite your co-parent and they get full access to expenses, payments, and the calendar under your plan, no separate subscription needed.
Can SharedAnchor replace legal advice?
It can't, and it's not trying to. Use it to keep your records straight. For legal advice, talk to a licensed family law attorney.
How are records protected from tampering?
Every entry gets hashed (SHA-256) into the append-only ledger the moment it's logged. Try to edit or delete something later. Verification catches it.
Start your shared record
No credit card required for the trial. One plan covers both co-parents.