The first three weeks always go well.

Numon is built for what happens after.

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A full month, no card needed.
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A letter

Then they showed up again.

Not because I didn't have the money. Because the paperwork didn't get filed. Because the transfer didn't get made. Because the reminders got missed. Because keeping track of everything, every month, consistently, is genuinely hard when your brain works the way mine does.

I have ADHD. For years I ran our household budget. Spreadsheets, apps, notebooks. It worked, mostly, until the maintenance caught up with me. I'd hyperfocus for three weeks, get the template perfect, log everything beautifully. Then the focus would break, and two months would pass, and the whole thing would be a mess I couldn't face.

Every budget app I tried had a similar shape. They were built for someone who shows up every day. I don't. And once you miss a day, a week, a month, the app becomes another thing you're behind on. So you stop opening it. And then you're back to the spreadsheet, or nothing, and the penalties keep coming.

I got tired of looking for the tool that would fix this. I built one instead.

Below is what it is, and how it works.

Photo of Grzesiek
Grzesiek
Husband, Father, Head of Engineering · LinkedIn

Here's what it is.

Numon is a budget app built around one idea: planned versus actual, every month. Not every coffee. Just the things big enough to change your picture.

01 Once a month

You sit down for about thirty minutes. Your template is already there. You confirm what's recurring, add what's been paid, plan for what's to come. You close the app knowing what you owe, what you've paid, what's left, and that the picture is clear.

02 During the month

When something significant happens - a car repair, a birthday present, an unexpected expense - you open the app, type a name and an amount, and you're out.

Family Budget
T
May 2026
PLANNED BALANCE
4 645,00 USD
ACTUAL BALANCE
5 650,00 USD
3 items still need logging
INCOME
  • Salary7 300,00 USD7 450,00 USD
EXPENSES
  • Groceries800,00 USD
  • Netflix20,00 USD
BILLS
  • Rent1 800,00 USD1 800,00 USD
  • Internet35,00 USD
Home
Month
Template
Settings

Here's what a month feels like.

the template

Your template isn't something you set up once. It grows with your life.

Your kid starts swimming lessons. You open the template, add a line. The app you used for one trip and finally cancelled. You open the template, remove it. Rent went up this year. You update the number.

The template is your real life, written down. It changes when your life changes, not when individual months do.

Family Budget
T
May 2026
PLANNED BALANCE
4 620,00 USD
ACTUAL BALANCE
5 650,00 USD
4 items still need logging
INCOME
  • LOGGED
  • Salary7 300,00 USD7 450,00 USD
BILLS
  • Internet35,00 USDnot logged
  • Phone Plan25,00 USDnot logged
  • LOGGED
  • Rent1 800,00 USD1 800,00 USD
EXPENSES
  • Groceries800,00 USDnot logged
  • Netflix20,00 USDnot logged
Home
Month
Template
Settings

That's a month with Numon.

If any of this sounds like how you already think about money.

Try it free for a month no card, no reminder to cancel
why it survives

The reason most apps stop serving you isn't the app. It's the assumptions they're built on.

01

A new month starts clean. The template is waiting.

Whether you missed a day, a month, or a whole season, you open a new month and go.
three things worth naming

What Numon is not.

  1. 01
    You don't have to track everything.
    Track what matters to you. The rest doesn't change the picture.
  2. 02
    Missing a month is fine.
    Nothing breaks. Nothing piles up.
  3. 03
    This tool works with your habits, not against them.
    Nothing here asks you to change.
what it costs

€10 a month · or €100 a year · free for a month, no card · cancel anytime

One tier. No seats. No usage limits. No upsell email on day 29.

Try it free
A full month, no card needed.

A few questions, answered.