Price drops
Waiting can be cheaper.
Parked something with a link? Girl Math checks the price every few days. If it drops, you get a push and the new price waits on the card. Still want it? Now it costs less.
An iPhone app for the things you want but don't need
girl math
= basically free.
Want it? Park it. Girl Math holds it for a week, then asks if you still want it. Most of the time you don't, and every nope lands on your receipt as money you didn't spend.
- No sign-up
- No ads
- No tracking
The door
Girl-math your way in.
Everyone gets in. Your girl math sets the price, from €29 to €0. Three messages, make them count.
girl maththe door · everyone gets in, your math sets the price
€29hi. girl math says you don't need this app.
convince me.
it was on sale so I saved money✦returned it = €65 made✦didn't buy it = free✦€140 sneakers, 70 wears, basically €2✦paid cash so it doesn't count✦the nope is the flex✦
How it works
Want it? Park it.
The urge fades. The money stays.
- 1
Park it from anywhere
In Instagram, Pinterest, Safari or any shop app: Share, then Girl Math. Or snap a photo in the shop, or paste a link. The name, price and photo fill in by themselves.
SharePhotoLinkType it - 2
Let it cool off
Pick how long you'll think about it: 3 days, a week or a month. It waits in Pending. Every Sunday evening is decision day.
3 days1 week1 month - 3
Decide, with the real math
When the time is up you get a nudge. Girl math says it's free; real math, work math and cost per use say what it costs. If the price dropped meanwhile, you'll see that too.
NopeBuying itOne more week - 4
Keep the receipts
Every nope adds its price to your receipt. Money you didn't spend is money you made, and it's all there to flex.
+€89.00+€210.00+€45.00
The receipt
Money I didn't spend is money I made.
Eleven nopes in a couple of months, and it already pays for a trip. Invested instead, it's twice that in ten years.
Girl math receipt
€1,088.90
11 nopes since August
- Third pair of black boots€210.00
- Designer sunglasses€189.00
- Satin slip dress€129.00
- Air fryer, the second one€119.00
- + 7 more€441.90
↻ In 10 years, invested€2,142.00
Features
Small things that make you come back.
Not streaks, not guilt. Little wins, a nudge at the right time, and the number going up.
First nope. €500. €5,000.
Eight milestones, never lost. The next one always shows how close you are.
Your month, on one receipt.
On the 1st: what you said no to, what you bought, and which mood cost you most. Flex it as a picture.
Let the nopes pay for Lisbon.
Name a goal, with an end date if you like: No-Buy November is one tap. Every nope fills the ring, and when it's done there's a receipt to post.
The number, on your home screen.
Money not spent, and how many things are ready to decide. On the Lock Screen too.
Which mood costs you most?
Tag how you feel when you park: bored, sad, celebrating, late night. The pattern shows up fast.
Gift list
Parked it? Let someone else buy it.
Put parked things, or nopes you pick, on your gift list and share one link. Friends open it in any browser, no app needed, and tap "I'll get this" so nobody buys it twice. You never see who.
A gift list.
Ceramic pour-over dripper€64.00 · Hario
Vintage film camera€135.00 · VintedSomeone's getting this
Bought it? Don't miss the return.
Add the return date and get a reminder two days before the window closes.
€140 is a whole day.
Add your take-home pay and every price shows in days of work. It never leaves your phone.
Wanted it badly. Forgot it completely.
Nopes older than a month rest here. Most of them you won't even remember.
The math
Every price, four ways.
Try it with the thing in your basket right now.
Girl mathfree
Real math€140.00
Work math1.3 days of work
Future math€275 in 10 years
Use it 70× and it's €2.00 each time.
€0.00 not spent so far. That's girl math.
Future math is what the money grows to in 10 years at 7% a year. Work math counts 21 working days a month. Nothing you type here leaves this page.
Confess
What's your worst girl math?
Returned a dress, so that's free money to spend? Tell us, anonymously. The best ones get read out by the mascot.
Yours
Your list is nobody's business.
No sign-up
Open it and park. No email, no password. Save it to your Apple account when you want to keep it across phones.
No ads, no tracking
Nothing is sold, nothing follows you around. Photos and links are only read to fill in the name and price.
Delete it all
One button in Account removes your list, your photos and your account for good.
The details are in the privacy policy.
FAQ
Good questions.
Is it a budgeting app?
No bank connection, no categories, no spreadsheets. It's one habit: wait before you buy. Girl Math counts what you didn't spend, not what you did.
Where can I park things from?
Anywhere with a Share button: Instagram, Pinterest, TikTok, Safari, Chrome, Zara, H&M, Vinted. Or take a photo in a shop, or paste a link. See the guide for adding Girl Math to your share menu.
What happens when the time is up?
You get a reminder and the thing moves to Ready to decide. Say nope and its price lands on your receipt. Buy it and it moves to Bought, with a reminder before the return window closes. Or give it one more week.
How do price drops work?
For things you parked with a link, Girl Math checks the shop's price every few days. When it's 3% or more lower, you get a notification and the new price shows on the card.
Android?
iPhone first. Android is on the list: join the waitlist and tell us.
Pop it. Don't shop it.
Try the beta on TestFlight, or join the waitlist for launch day.