Duration.

Know what your savings are for.

Duration is a budgeting app for money kept in more than one place: your everyday account, your savings, your funds and shares. Give every amount a job, say when you'll need it, and you'll always know what's set aside, what's free, and whether it's in the right place.

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In daily use by a small group. We'll write when there's room for more.

Can you spend 30,000 on a new sofa? Your bank says 155,000. Duration says 7,000, unless you take the rest from something else.

How it works

If you've ever written down what your savings are for, you already know the method. Duration keeps that list for you and checks it against your accounts.

  1. Give every amount a job

    Rent, groceries, the buffer, the holiday, the new kitchen. Money without a job is what you're free to spend.

  2. Say when you'll need it

    This month, within a year, in a few years, or much later. The further off the date, the more ups and downs the money can take, so you keep each time frame in an account that suits it. You choose which.

  3. See what's out of place

    Set money aside for retirement and it stays in your everyday account until you move it. Duration shows that, and suggests the transfer that puts it right. You make the transfer in your bank.

Nothing moves on its own. You make the transfer in your bank, and Duration keeps count.

Read the longer explanation →

What it looks like

Every job you've given your money, grouped by when you'll need it: what you set aside this month, what you spent, and what's left.

The Buckets page in Duration, where every job you've given your money is a row, grouped into four time frames. Each row shows what was set aside this month, what was spent and what is left; one overspent row offers to cover the difference from another.
An example budget. Amounts show in your own currency and number format.

Also in Duration

  • Goals

    Give any job a goal: save a sum by a date, set aside an amount every month, or keep a balance topped up.

  • Import from your bank

    Upload the file your bank lets you download. Duration skips what it has already seen and learns how you usually sort things.

  • Can I afford it?

    See what's left each month once your goals are covered, and try out a purchase before you commit to it.

  • Market swings kept apart

    When your funds rise or fall, it isn't mixed up with your spending. You decide which jobs the gain or loss belongs to.

  • Your currency

    Each budget is kept in one currency, chosen from 30, with numbers and dates in the format you're used to. Accounts in a second currency aren't supported yet.

  • Your data stays yours

    Export a whole budget whenever you like. Delete your account and your data goes with it.

Good to know

Who is Duration for?
People whose money sits in more than one place and who want to know what all of it is for. If you keep track of your savings in a spreadsheet or in your head today, it's built for you. If everything is in one account, a simpler budget will probably do.
Do I need to invest?
No. Savings accounts work just as well. Duration helps most once your money is spread across a few places, invested or not.
Will it move my money or tell me what to buy?
No. Duration suggests transfers, and you make them in your own bank. It doesn't pick funds, tell you when to buy or sell, or promise any return. It shows you where you stand.
Can it connect to my bank?
Not yet. Today you upload the transaction file (CSV) that most banks let you download. Direct connections to European banks are on the roadmap.
Does it work on a phone?
You can check your numbers on a phone, but Duration is made for a computer. The monthly review is a sit-down job.
Does it handle tax?
No. Moving money between accounts can have tax consequences, depending on where you live and the kind of account. Duration doesn't calculate them.

Get a place when there's room

Duration is in daily use by a small group while we smooth out the rough edges. We'd rather open late than hand you something unfinished. Leave your email and we'll write when there's a place for you.

No newsletter and no marketing lists. We'll only write when there's real news about Duration, your address is used for nothing else, and you can ask us to remove it at any time.