Home and familyAdvanced3 to 4 weekendsUnder $100Web and mobile

Co-Parent Calendar

A calm shared calendar for custody schedules, handoffs and kid expenses.

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The idea

Separated parents share one calendar showing whose day it is, handoff times and events. Swap requests and shared expenses are logged with timestamps, so there is less arguing and a clear record. It keeps the focus on the kids.

Who it is for
Separated or divorced parents sharing custody
How it makes money
$6 a month per parent
Suggested stack
Next.js web app plus Expo mobile app, shared Supabase backend
Launch cost
Under $100

Your first AI prompts

Paste these into Claude, Cursor or Lovable, in order. Check that each one works before moving on.

PROMPT 1 OF 3

Build a web and mobile app called Co-Parent Calendar. One parent signs up, invites the other by email, and sets up children by first name. Add a schedule builder with common patterns (week on week off, 2-2-3, every other weekend) and a start date.

PROMPT 2 OF 3

Show a color coded month calendar of which parent has the children each day, with handoff time and place. Add swap requests that the other parent can accept or decline, and log every change. Add a shared expense log with amount, category, receipt photo and split percent.

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PROMPT 3 OF 3

Send push reminders before handoffs and when requests are pending. Add a monthly expense summary showing who owes whom and an exportable PDF log of schedule changes. Add subscriptions via Stripe on web.

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The 10 step playbook

  1. 01Claim your ideaPut your name on it and unlock every prompt and the full playbook. Always free.
  2. 02Domain and nameBrainstorm a short name, check the .com, and register it.
  3. 03Trademark basicsSearch for conflicts before you fall in love with the name.
  4. 04AI build kickoffPaste the prompts below into Claude, Cursor or Lovable, one at a time.
  5. 05Server and hostingPick a host and have your AI walk you through setup.
  6. 06Backend and dataLogins, database and payments, one prompt at a time.
  7. 07Frontend and designScreens, colors and a simple logo that look professional.
  8. 08Go livePut it online, then submit to the App Store and Google Play if it is a mobile app.
  9. 09Marketing planLaunch posts, local outreach and your first 100 users.
  10. 10Launch and growShip it and add your live link to earn the Shipped badge.
Your full playbook for Co-Parent CalendarEvery step spelled out for this idea, with the exact prompts to paste into your AI.
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