Duo: Co-Parenting Expenses

About this app

Shared kid expenses with approvals and audit trail. Add an expense, the other parent approves or disputes it, the running balance updates. Receipts attached, history preserved, exportable for a lawyer or court. Who paid for the after-school club? How much was the doctor visit? Who bought the winter shoes? Duo records all of it — neutrally, with proof. Built for separated and divorced parents. Also works for any two people sharing costs who need transparent evidence — not negotiation. WHAT DUO DOES — Add an expense — amount, category (school, doctor, clothes, food, activities…), date, ratio (default 50/50) — Receipt required — every expense needs at least one photo or PDF, immutable — Approval workflow — the other parent approves, disputes, or auto-approves after a set delay — Disputes — raise a written reason, expense stays in the record (no deletions) — Running balance — only approved expenses count; settled balance subtracts confirmed settlements — Settlement evidence — one parent proposes, the other confirms; the actual payment happens outside the app — Per-case ratios — different cases can have different splits (e.g., 60/40 for one child, 50/50 for another) — One subscription covers both parents in a shared case PRIVACY — Email login with a one-time code — no password to remember. — No third-party tracking. No ads. No personal analytics. — Documents and expenses are private — visible only to the two parents in the case. FREE AND PREMIUM Free: — full evidence workflow (cases, expenses, approvals, disputes, settlements, documents) — history of the last 2 months — manual expense entry Premium (Duo Plus): — full history, no time limit — PDF and CSV export — documentation for a lawyer or court — statistics — totals by category, month, parent — audit trail — complete event history of every case — push and email notifications when the other parent adds an expense — AI auto-fill from a PDF receipt (free tier: 10 uses lifetime) Privacy Policy: https://1tnt.link/duo/privacy.html Terms of Use (EULA): https://1tnt.link/duo/eula.html

More reliable receipt sharing Sharing a receipt from another app into Duo is now smooth — the case picker always appears and the app you shared from no longer freezes afterwards. We also added minor stability fixes.

Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.

1. First observed Sep 3, 2026 · 2:14 AM Free