CoMon
CoMon
CoMon watches your contract renewals and cancellation deadlines, logs your meter readings and fill-ups, and keeps the household budget in balance — then emails you before anything slips.
Every part works on its own, and they add up when you use them together.
Add devices for electricity, gas or water and keep all their identifiers and attributes in one tidy place.
Log readings whenever you like — the app fills the gaps with estimated monthly values, so your history and averages stay meaningful even if you read irregularly.
Provider, pricing, run-time, cashback and scheduled price changes — always know which contract is currently active.
A season-aware payment forecast tells you whether your monthly payment is on track, plus consumption trends, year-over-year comparison and a CO₂ estimate.
Categories, recurring items and a yearly overview — then drill into any month to see exactly what a cost is made of.
Never miss an expiring contract, cancellation deadline, cashback window, price change or budget limit — by email or push notification.
Share your devices, contracts, notes and one household ledger with the people you live with — invitations you control, and a clear split of who keeps what if someone leaves.
Full JSON backups and CSV exports you can import back any time — your data stays yours, with no lock-in.
Scroll to see every section come alive.
Your customizable overview — key stats, recent contracts and a chart per device, all in one place.
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Dashboard
Take a closer look at each view at your own pace.
Your customizable overview — key stats, recent contracts and a chart per device, all in one place.
All your meters in one searchable list, filterable by type (meter, car, insurance, communication…).
Active contract, last reading and key stats — everything about one device at a glance.
Daily average, predicted end value, contract period and pricing — know exactly where you stand.
Every category across twelve months in one pivot, with income-vs-expense totals and a chart on top.
Click any amount to slide open the transactions behind it — recurring items, one-off entries and reimbursements — so you always know why a month is high.
Sign up in seconds — passkeys and two-factor authentication are supported out of the box.
Quick forms guide you through adding each device and linking it to a supplier contract.
Drop in a value whenever you read your meter. The app handles the rest.
CoMon is free to use. No accounts to upgrade, no feature gates — just a clean tool you can actually rely on.
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