How much you can spend today without running short later
The money on your card isn’t all yours. Some of it is going to rent, some to a loan, and some you’ve set aside for yourself. FUNFIN subtracts everything already promised and shows you one number: what you can spend today and stop worrying until the next money arrives.
Your bank says38,420 ₴everything sitting on the card
FUNFIN says437 ₴yours to spend today. That’s the truth.
Basic is free foreverNo password, no cardConnect monobank, a leading Ukrainian bank, in a minute
9:41
Wednesday, October 719 days until your client pays
19
M
Safe to spend today
437 ₴
for each of the 19 days until your client pays on Oct 26
Rent and loan through Oct 26 already subtracted
Horizon to Oct 26
today437 ₴/day
Oct 22rent
tightestOct 23
≈ Oct 30maybe
Oct 26client pays
The math 38,420 − 30,100 = 8,320 ›
Can I afford it…Why did it change?
monobank · fact 09:14
Silpo grocery−612.40 ₴
From client+18,000 ₴
Can I afford 4,370 ₴?
Yes437 → 207 ₴/day
1 numberinstead of a dozen charts
to 0.01 ₴calculated by the server, not your phone
1 minuteto connect monobank
0 ₴for the core, forever
How it works
Subtract what’s promised, divide by the days. That’s all the math.
Your bank shows how much is sitting there. FUNFIN shows how much of it is yours. You already do this subtraction in your head before every purchase. We do it for you — and show every step.
Money in your accountsfact, 09:1438,420 ₴
Rent and loan through October 26plan−21,100 ₴
The reserve you don’t touchyour rule−9,000 ₴
Free until the next moneycalculated by FUNFIN8,320 ₴
Days until October 26, when your client payscertain to arrive19
Maybe another payment on October 30estimate · not counted until it arrives6,000 ₴
Safe to spend today 8,320 ÷ 19, rounded down to the whole hryvnia437 ₴
Until the next money, not the end of the month
Your client pays on the 26th, so we divide by 19 days, not 30. If there’s nothing certain ahead, we use 30 days and say so plainly.
Promises sit on their own
Money that’s only been promised is visible alongside, but it stays out of the number until it arrives. No “well, they’ll probably pay.”
We only round down
To the whole hryvnia. The number never promises more than you really have.
Down to the kopek
The server does the math by a strict rule. An error of even one kopek (0.01 ₴) is a bug we fix first.
AI explains, it doesn’t calculate
The model tells you in words what’s already been calculated. It can’t change the number — it simply has no permission to.
Try it now
Work out your number in ten seconds
Four figures off the top of your head, and you’ll see how much of your money is really yours. No sign-up, and we store nothing.
Features
Everything in the app works toward one number
Bank sync, payments, switching apps, envelopes, AI. Each one either makes your daily number more accurate or saves you time. There’s nothing else in here.
Basic
Counts to the next money, not to the end of the month
Salary on the 25th, a freelance fee “sometime in October,” an advance tomorrow. Your free money is divided into days until the thing that’s certain to arrive. The line shows the day you’ll have the least left — and we tell you about it ahead of time, not after you’re already overdrawn. Built for people who aren’t paid on a schedule.
today8,320 ₴
Oct 12utilities −1,900
Oct 22rent −12,000
tightestOct 23
Oct 26client pays
≈ Oct 30maybe
payment — already subtractedmoney that’s certain to arrivemaybe — not in the number
Basic
“Can I afford it?” — before you buy, not after
Type in a price and we’ll check it against your money and your payment schedule.
Headphones4,370 ₴Yes
Per day until Oct 26: 437 → 207 ₴
If today doesn’t work, we’ll tell you from which day it will.
Basic
Payments and loans are subtracted before you pay them
A loan, a credit card, rent, an installment plan, money you owe a friend. For a loan you get the full schedule: how much goes to the debt itself, how much to the bank, and when it all ends. Paid it? It says “Paid.”
Date
Payment
Debt
Bank
Sep 22 ✓
9,460
7,222
2,238
Oct 22
9,460
7,297
2,163
Nov 22
9,460
7,373
2,087
Basic
Purchases and balance arrive from your bank on their own
Connect monobank, one of Ukraine’s most popular banks, and pick your cards. Every purchase shows up right away, and older ones are pulled in automatically. The app only looks — it can’t transfer or spend your money.
Silpo groceryfact · today, 08:52−612.40 ₴
Payment from clientfact · yesterday+18,000.00 ₴
Coffee shopfact · Oct 5−85.00 ₴
Basic
Switch from another app with a single file
Saldo, YNAB, Monefy, Wallet, CoinKeeper. Duplicates from your bank won’t be recorded twice, and you can undo everything with one button.
File read14,858 records
Accounts matched30
Duplicates skipped25
Savecan be undone
Basic
Envelopes and goals that never tempt you to spend
Money you set aside lives separately and stays out of your daily number. A goal is a ring: it closes when you’ve saved it all. No streaks, no badges — we celebrate money, not attendance.
62%saved
Saved
6,180 ₴
Pace
1,030 ₴/mo
You’ll make it by
March
Premium
A budget that builds itself — around your income
Based on your spending over recent months, with three levels per category. If your income is uneven, we use your usual level, not the average. Every tip comes with a price tag.
Cafés3,240 ₴ / 3,000 ₴
Groceries5,100 ₴ / 7,500 ₴
Cafés: 3,000 → 2,700 ₴ — and the month balances
Premium
Say it in words — AI records it and splits it up
“We’re splitting Netflix four ways,” “that was a transfer to an envelope,” “85 for coffee, cash.” The AI asks about whatever’s missing and records it only after your “Yes.” It sorts categories on its own and tells you honestly how confident it is.
We’re splitting Netflix four ways: me, Sofia, Serhiy and Andriy
◇ AI · suggestion
My share — expense−104.75 ₴
Sofia, Serhiy, Andriy — owe me104.75 ₴ each
ApplyNot quite
Basic
Your money, inside Claude and ChatGPT
Connect FUNFIN to your own assistant. It answers from your real data, and the numbers are calculated by the same engine. You decide whether it can only read or write as well.
› How much can I spend today?437 ₴ a day until Oct 26. I’ve already subtracted rent and the loan.› What took the most in September?Groceries at 6,840, ₴ then cafés at 3,240 ₴.
Premium
Telegram bot: log a purchase in one message
Cash, coffee, a taxi — text the bot “85 coffee” and it’s in the app. Transfers between accounts work here too.
Duo · Family
Together: shared money for couples and families
Shared accounts, envelopes and a plan for two people or up to five. One person pays — it works for everyone.
Basic
Hryvnia, dollar, euro — at an honest rate
The National Bank of Ukraine (NBU) rate and PrivatBank’s cash rate side by side, so you can see the gap. If there’s no rate, we don’t make one up.
Basic
Your look: six palettes, light and dark themes, larger text
Paper and ink by day, a dark theme with a lime number by night, switching on its own with the clock. Try a palette right here — the page will repaint.
Honest numbers and security
You can see where every number comes from. And who can change it.
We show a number’s status in words and in shape, not just color. Take the color away and you can still tell a fact from a plan.
fact
Already happened. Next to it, the time we saw it: “fact 09:14.”
plan
Scheduled: rent, a loan payment, incoming money with an exact date.
estimate
Might happen. It sits outside the total and doesn’t count until it arrives.
calculated
The result of a calculation. Tap it and you’ll see every step.
◇ AI 93%
An AI suggestion, with its confidence. Applied only after your “Yes.”
Your bank, read-only
The app can’t transfer or spend your money. The key to your bank is stored encrypted on our server and never sent back to your phone.
Only you see your data
The protection lives in the database itself, not just the interface: even a bug in the app can’t read someone else’s row.
AI with no say over the number
The model explains and suggests, but every amount is calculated by deterministic code. An AI suggestion changes nothing without your confirmation.
No password
A code by email, or sign in with Google. Nothing to remember, nothing to guess.
Everything can be undone
A payment, an import, an AI suggestion. Switching from another app can be rolled back with one button.
Your data is yours and stays yours
Stop paying and nothing disappears — only the automation switches off. You can delete everything in settings in one move.
Who it’s for
For people who have something to pay every month
You earn something and you have payments that repeat: rent, a loan, utilities, subscriptions. We’re not about accounting or stocks — we’re about “can I today?”
MMarta, 31paid on the 25th
I have everything planned out in advance
Rent, a car loan, utilities, subscriptions. She keeps a reserve and doesn’t want to see it among her everyday money.
What she needsOne number, and confidence that it already accounts for everything.
AAndriy, 27FOP — a registered sole proprietor, self-employed
My income is uneven
Money arrives late. A month means nothing to him: what matters is how much is left until the next payment.
What he needsTo see the difference between what will certainly arrive and what was only promised.
OOlya, 38hryvnias and dollars
Don’t touch the cushion
She keeps a reserve in two currencies. For her it isn’t a setting, it’s a promise to herself.
What she needsAn app that respects that money and never suggests spending it.
What’s different
Others look back and scold. FUNFIN looks ahead.
One app tells you that you spent 30% more than last year. Another says you’ve gone over your limits. Your bank stays quiet until you’re overdrawn. FUNFIN can say “yes, you can” — because it has already subtracted the rent.
What it is
What it shows
Where it looks
Tone
Expense trackers
charts of where the money went
backward
reports
Budget planners
rules, limits, “you’ve gone over”
at the month
judges and scolds
Your bank’s app
a balance that already holds other people’s money
at right now
silent until you’re overdrawn
FUNFIN
one number a day and an answer to “can I buy this?”
Your daily number, accounts, one bank on autopilot, payments, envelopes, goals and reports — all in Basic, no payment needed. You pay for AI, a second bank and shared money.
14 days of Premium, freeOne time, no card. Don’t like it? You simply stay on Basic.
Your data never disappearsWhen a plan ends, only paid actions switch off. Your accounts, transactions and daily number stay.
Everything is open right nowPayments aren’t connected yet, so for now every feature is available to everyone.
FAQ
What people usually ask before they start
Can’t find yours? Message support from inside the app — a real person replies.
How is this different from my bank’s app?+
Your bank shows how much is on the card. That sum already includes the money for rent, your loan and your reserve — in other words, money that’s effectively someone else’s. FUNFIN subtracts everything promised before the next money arrives and divides what’s left across the days. You get one number you can spend without worrying.
Is it safe to connect my bank?+
The app has read-only access: it sees your balance and purchases, but can’t transfer or spend money. The key to your bank is stored encrypted on the server and never reaches your phone. You can disconnect the bank at any time in settings.
Which banks are supported?+
Right now, monobank (a popular Ukrainian digital bank), automatically and in real time. We’re adding other banks one at a time. For any bank you can upload a statement file or keep an account by hand — your daily number works the same way.
My income is uneven and I’m a FOP (a registered sole proprietor in Ukraine). Will it work?+
It’s built for exactly that. We divide not by the days left in the month, but by the days until the next money that’s certain to arrive. A fee that’s only been promised is visible alongside, but stays out of the number until it lands. In Premium, the budget is based on your usual income, not the average.
What exactly does the AI do?+
It sorts purchases into categories, records transactions from your words or voice, splits shared expenses, and explains why your number changed. It can’t calculate or change amounts — deterministic code does that. Every AI suggestion is applied only after you confirm it.
Is there a phone app?+
FUNFIN works in the browser on your phone and computer, and you can add it to your home screen like any other app. There’s also a Telegram bot for quick entries and a connection to Claude and ChatGPT.
I track my finances in another app. Will I lose my history?+
No. Export a file from Saldo, YNAB, Monefy, Wallet or CoinKeeper — we’ll tell you which one. Then match your accounts, review the result and save. Transfers between your own accounts won’t turn into income, and duplicates from your bank won’t be recorded twice. Don’t like it? Everything rolls back with one button.
What happens if I stop paying?+
You go back to Basic, and your data stays: accounts, transactions, envelopes and your daily number. Only the paid actions switch off — AI, the second bank, the budget and the bot. You can delete all your data in settings at any time.
Learn
Ten simple pieces about money
No jargon, and no “just spend less” advice. Each takes three minutes and ends with something you can do today.
Get started
Your number appears after step two
From there it gets more accurate with every payment you add. But you can trust it from step two.
1
Create an account
Email and a code, or sign in with Google. There’s no password.
2
Tell us how much you have
Connect monobank, or type in the amount from one account yourself.
3
Read your number
Add your reserve and payments, and it will account for everything already promised.