For people who earn their own money

Decide, then buy.

One honest answer before you pay: Buy, Wait for payday or Not now. Based on your own money, not on a feeling.

Try DeciBuy free
No bank connection No expense tracking Your numbers stay on your phone
My items: saved products as colored folders, each with its verdict and price
9:41
Home: your spare money this month, what's coming up and your recent checks
A verdict: Wait for payday, payday is in 4 days, with the reason and the numbers

The problem

The decision takes minutes.
The regret comes later.

Sales, countdowns and late-night scrolling make the call. Reviews and price checks come after, to justify it.

11 of 17last unplanned buys were paid within an hour
9 of 11of those fast buys are barely used now
13 of 17happened in the evening or late at night
8 of 13people who tried a money app gave it up
At one in the morning I'm not a person, I'm just a thumb.
I felt rich for one day.
Every month it said I was failing.

From our research: a survey of 18 people and 5 in-depth interviews.

What it does

Your money and the price,
in one answer.

Checks your month

Compares the price with your spare money and what's left until payday.

Tells you when

If it doesn't fit today, you get the payday when it does, and a reminder on that day.

Keeps it private

No bank connection. You answer once, in ranges. Your numbers stay on your phone.

Our goal

Not fewer purchases. Fewer regrets.

If it fits your month, DeciBuy says Buy. Every Wait comes with a date. Every Not now comes with the numbers.

Inside the app

Three answers.
Always with a reason.

Installments are judged on the full price. Every answer shows the numbers behind it, like the hours of work it costs.

Verdict Buy: fits your month, with the share of spare money and hours of work
BuyIt fits your month, and the price is near its lowest.
Verdict Wait for payday: payday is in 4 days, with a reminder
Wait for paydayBuy it in 4 days, safely. You get a reminder that day.
Verdict Not now: about two and a half months of your spare money
Not nowAbout 2½ months of your spare money. Here's the math.

How it works

Three steps.
About a minute to start.

Tell it about your money, once

Take-home pay, rent, bills and payday. Ranges are fine.

Add what you want to buy

Type the name and the price. Sharing from any store Coming soon

Get one answer

Buy, Wait for payday or Not now, with the reason and the numbers.

Voices

What people said
after trying it.

I like the design.

DeciBuy user

Simple and easy to use.

DeciBuy user

Beautifully made.

DeciBuy user

Minimal and clear.

DeciBuy user

The research

Built from what
people told us.

Sometimes "yes, buy it" is the answer and I want to hear that too.

So Buy is a real answer, not a reward for saying no.

A range would be fine. My exact salary, no.

So setup asks for ranges. An exact amount only if you want it.

Stop me. But nicely. Not like my mom.

So every answer is one calm line with a reason.

Try it

Decide, then buy.

The full app runs in your browser. No sign-up, no bank.

Try DeciBuy free