Split the costs. Share the truth.

The paper trail for modern co-parents

A co-parenting app for shared expenses, child support, alimony, custody and communication

No more "I never agreed to that"
No more guessing who owes what

Every expense, approval, receipt, and conversation stays connected in one place - so you never have to reconstruct what happened months later.

Because your kids deserve the calm, not the chaos

Parent and child sharing a calm moment
FairLedger product preview
Start free Download on the App Store

iOS app · Web app · Android supported

How it works

Know who owes what

After weeks of expenses going in both directions, do you actually know who owes what right now? Most apps leave you with a list of transactions. FairLedger keeps a shared running balance that updates automatically, so you're always looking at the answer, not reconstructing it.

Shared expenses · James's view
Current balance
S
School suppliesApproved$120
Sarah · Apr 3
−$60James owes Sarah $60
J
Dentist copayApproved$200
James · Apr 11
+$100Sarah owes James $40
S
Baseball cleatsApproved$116
Sarah · Apr 18
−$58James owes Sarah $18
S
Soccer camp depositPending$80
Sarah · Apr 24
One number. No spreadsheets. No calculator. No surprises.
Starting Blank Ledger
Two parents, one answerEntries from either parent flow into the same shared balance — no separate tracking, no reconciling at the end of the month.
Pending items don't affect the balanceThe math only moves when an expense is approved. No surprises from entries the other parent hasn't signed off on yet.
Settle up whenever it makes senseNo need to pay after every transaction. The balance accumulates and you settle when both parents agree — weekly, monthly, or whenever.
One number, always currentNo spreadsheet, no mental math, no chasing. Open the app and the balance is right there.
See more expense examples
Custody calendar

Know where the kids are

More than a custody calendar. One shared record for everything co-parenting involves.

Every day is color-coded by who has the kids, making exchanges, weekends, and parenting time easy to see. Set your schedule once. Add events, request swaps, and let FairLedger build future months automatically.

June 2026
MonthWeek

Day color shows who has custody

You
Jordan
Mia
Leo
Ava
SunMonTueWedThuFriSat
Completed Calendar
Supports real custody schedulesWeek on / week off, 2-2-5-5, every-other-weekend, and more, plus a flexible mode when one parent has primary custody.
Swaps without the fightNeed to trade a weekend? Request a swap right from the calendar. Every request, approval, and decline is saved automatically, so everyone knows what was agreed.
Every event has its own conversationSchool events, activities, and appointments live in one shared calendar, each with its own conversation so the details don't vanish into old texts.
Connected to everything elseUnlike standalone custody calendars, FairLedger connects your schedule to shared expenses, support, messages, and one permanent, exportable record.
See more on the custody calendar
All the details, in one place

Know what happened

Every expense, approval, and dispute is timestamped and preserved. Attach receipts, see status at a glance, and export everything if you ever need it.

FairLedger app screen showing running balance, dual ledgers, and transaction history

Never mix support payments with shared expenses

Two independent ledgers (Support & Expenses), each with its own running balance. Keeping them separate means the numbers are always accurate and each obligation stays clear.

Always know what you owe, and what you're owed

Entries from both parents flow into the same ledger. The balance updates automatically so you're settling a real number, not chasing individual transactions.

No more "I never agreed to that"

Every expense shows its status: pending, approved, or disputed. There's no ambiguity about what the other parent signed off on.

Every adjustment leaves a permanent trail

Nothing disappears after the fact. Every approval, dispute, and correction is timestamped and part of the record.

Receipts stay attached to the expense

Link receipts and invoices directly to each entry. When you need to review or export, everything is already in one place.

Surprisingly simple

Log it. Approve it. Done.

Either parent logs an expense. The other approves or disputes it. The balance updates automatically, and every action becomes part of a shared record.

1

Add the expense

Enter the amount, category, date, and who paid. Attach a receipt or document to support the entry from day one.

2

Other parent reviews

The other parent is notified and sees exactly what was submitted: amount, category, and receipt.

3

Approve or dispute

The decision is recorded permanently: approved or disputed, with no room to argue later about what happened.

4

Balance updates automatically

The shared balance reflects everything both parents have approved. No manual math, no chasing each other for totals.

Shared expenses

Track expenses for activities, school, medical, transportation, personal needs, and more, from either parent

Support obligations

Keep support separate from shared expenses so the record mirrors how real obligations actually work

Parent and child sharing a joyful moment

Co-parenting is hard enough.
The paperwork shouldn't be.

FairLedger won't fix every disagreement. But it can help you spend less time arguing over receipts, balances, and old conversations - and more time focusing on your kids.

FairLedger app screen showing transaction details and contextual messaging
Why it's different

Conversations stay attached to what actually happened

In FairLedger, every expense, custody swap, and calendar event has its own conversation thread. Messages stay attached to what they're about, not buried in a general chat or an email thread from six months ago.

No more hunting through text or email threadsThe conversation about the dentist bill is attached to the dentist bill, not buried in a text thread from last March
Every expense tells the whole storyWhen you need to review what was said about a specific expense, it's right there, not scattered across three different apps
Message review helps you write it betterAI communication coaching built on the BIFF method suggests clearer, calmer rewrites before you send, so messages are less likely to escalate
Less room for he-said, she-saidContext is attached and explicit, less room for disagreement about what was said, agreed to, or why
Court-ready if it ever comes to thatEvery message, approval, and dispute is timestamped and tied to the exact transaction, a complete record for mediators and attorneys
Explore more

There's more to FairLedger

Know who has the kids

A shared custody calendar, color-coded by parent, with swaps you can request and approve in a tap. Schedules that stay connected to everything else.

See the custody calendar

How does FairLedger compare?

Too many co-parenting apps. Not enough difference. See exactly how FairLedger stacks up on pricing, running balance, and record-keeping.

Compare co-parenting apps

Not ready to invite them yet?

Your co-parent doesn't have to be on board for you to start. Build your record today, invite them when you're ready. Nothing gets lost in the transition.

Learn about FairLedger solo mode

Built for family law professionals too

Mediators and attorneys get a clean, exportable record — expenses, approvals, and conversations in chronological order, ready for review.

For family law professionals
Our pricing

One subscription.
Both parents included.

No per-parent fees. One plan covers both co-parents; compare that to apps that charge each parent separately.

Monthly
$9.99/mo

Pay as you go, cancel anytime

Best value
Annual
$99/yr

Save ~17% vs monthly

  • Shared expense and support ledgers, unlimited entries
  • One-tap approve or dispute on every expense
  • Messaging on every expense, plus a shared general thread
  • Running balances and exportable reports for review or court
  • Custody calendar, events, and swap requests
Limited time

50% off your first 6 months

Use code FOUNDERS50 at checkout

Start free

30 day free trial · No credit card required to start

What co-parents are saying

Rated 5.0 on the App Store

★★★★★
Most co-parenting apps I've tried feel either too basic or way more complicated than they need to be. FairLedger was surprisingly easy to get started with. I especially like having the custody schedule and expenses in the same app since those things usually go hand in hand. After using it for a while, I found myself checking it instead of scrolling through old messages trying to remember what happened.
Shirley · App Store review
I've been looking for a better way to keep track of everything that comes with co-parenting, and this is the first app that's really clicked for me. The custody calendar was what caught my attention, but I ended up using it for expenses too because it just keeps everything together. It's nice not having to dig through old texts or emails to remember who paid for something or what was agreed to. It feels organized without being complicated.
Jason · App Store review
This app is much more polished than I expected. I was able to get everything set up pretty quickly, and it didn't take long before it felt like the easiest place to keep track of co-parenting. The calendar is clean, expenses are straightforward, and having everything in one place has already saved me from hunting through old text messages.
Dave · Web App user
Parent and child sharing a tender moment

Spend less time keeping score, and more time being a parent

Less time reconstructing the past.
More time making new memories.

30 day free trial · No credit card required