Live / iOS & Android · 2025 — present
DuetNest: one shared system for families and co-parents
One shared space for families and co-parents: calendars, expenses, decisions, messages and family records — free to start.
The challenge
Co-parenting coordination is spread across chats, calendars, bank transfers and memory. When something is disputed, there is no shared record — only two versions of it.
The product had to work for people who don't want to talk much: neutral, low-friction, and useful even when only one side is engaged.
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What we built
Shared timeline as the source of truth
Events, handovers and changes live on one timeline both sides see, so history is a fact rather than an argument.
Money without awkwardness
Expenses are logged, split and settled inside the product, so reimbursements stop being a personal negotiation.
Agreements in writing
Recurring arrangements are stored as structured agreements instead of being re-litigated every month.
Assistant where it helps
AI is used for the boring part — turning messy input into structured events and summaries — not as a gimmick.
Key capabilities
- Shared calendar with handovers and recurring schedules
- Tasks and checklists per child and per household
- Expense tracking with splitting and settlement
- Structured agreements and documents
- Neutral in-app communication
Technology
- React
- TypeScript
- Mobile apps (iOS & Android)
- Postgres
- AI assistant
Where it stands
- A working family OS available on web, App Store and Google Play
- Coordination, money and agreements consolidated into one record both sides trust
- A schema that extends to new household types without redesign
Services behind this build
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