Doncheck family
Doncheck family · closed beta

Money you're owed,
don't let it slip away.

Money you lent, rent in arrears, invoices nobody paid. Add what you're owed, and get the one thing to do now. Complicated steps made simple, the next step made clear.

Join the waitlist How it works

From working out exactly what you're owed, to a reminder letter, a formal letter, and what comes after. The name comes from 미수 (misu), Korean for money not yet received. Miss Check is in closed beta in Korea.

Wed, Oct 21

Your case is organized.

Alex Morgan

Money owed

$3,000

Where things stand Rent overdue · no reminder yet

Still not paid? Next we look at a formal letter, then the court route.

A few questions, and it's organized

Upload a contract or a chat screenshot and the amounts, dates and numbers are filled in for you. Stop halfway and it's saved, so you can pick up anytime.

1

How much are you owed?

Type the amount, or upload screenshots of the contract, messages or e-mails. Those pictures can become evidence later.

2

What money, and from whom?

Rent, a loan, a building job, goods you delivered. Pick as many as apply. A name is enough to start.

3

What's happened so far?

From "I haven't asked yet" to "I've been to court", pick one and the next step appears right away.

The next step depends on where you are

No list of ten options. Checkio looks at the facts and picks the one most fitting next move.

Asking for the first timeFree reminder letterA polite request written from what you entered, ready to send by text, WhatsApp or LINE.
When it needs to be formalFormal letterWritten in advance, just fill the blanks. Sent by registered mail with the tracking number and delivery recorded.
If they still don't payThe court routeMany countries have a simple route for unpaid money, like small claims or a court payment order. Your papers and timeline, organized.
If they offer to pay in partsPayment plan and calendarSet the amount and dates, and you get a written agreement and a schedule. Each installment is checked off as it arrives.
After a court decisionGetting it enforcedWhat the options usually are, like freezing a bank account or wages, and when to ask a professional.
When they say they don't owe itEvidence in one placeYour records, messages and photos, organized for a lawyer or mediator.

You don't always have to send a formal letter before going to court, and if a time limit is close, acting sooner matters. Miss Check doesn't give legal advice. It organizes the steps from the facts you enter. In the beta, court steps follow Korean procedure.

Seen through to the end

It doesn't stop at writing a letter. Each case has one progress screen until you're paid.

Originally owed$3,000
Received$0
Still owed$3,000
Last stepFormal letter sent
Next checkOct 28, 2026
SuggestedCheck whether it came in
  • Checkio spots the paymentWhen money arrives under their name, Checkio asks "Is this for this case?" Fully paid, and the case closes on its own.
  • Check dates on your calendarThe reminder deadline, the day they promised, court deadlines. When the day comes, the next step is picked again.
  • It branches on their answerA promise gets a date, a payment plan gets installments, and "I don't owe you" gets your evidence organized and a suggestion to talk to a professional.
  • One page for a professionalWhat's owed, what's been done, what's been received and a list of your evidence, as one PDF. No need to explain from scratch.

Made for

One unpaid amount or many. For anyone who isn't getting paid because the process feels too complicated.

LandlordsRent and fees in arrears. Connected to Rent Check, so nothing to type twice.
Small businessesGoods delivered but not paid for, store credit, the last payment on a job.
FreelancersThe work is done, and then silence.
CompaniesMany unpaid invoices at a glance, split by company.

Start free, pay only to send

Prices will be announced country by country. Just adding a case shows you the next step right away.

Free Basic
  • Add and organize what you're owed
  • Amount and interest worked out
  • Free reminder letters
  • Next-step suggestions and a progress calendar
  • Payment plan agreement and installment tracking
Only when you send
  • Formal letter sent for you, per letter
  • Proof of delivery and a messenger copy
  • Tracking number and delivery record kept
With professionals
  • Guidance on the court route, free
  • For representation, talk to a local lawyer
  • We never take referral fees

What Miss Check never does

Promises that let both sides trust us.

Never collects moneyWe're not a collection agency. Money always goes straight to you. We never call or visit anyone.
Never gives legal adviceWe organize steps and paperwork from the facts you enter. For big disputes, we suggest talking to a professional.
Never messages at nightNothing goes to the other person between 9 pm and 8 am, and never with threats.
Never uses scary wordsLetters state the facts, politely, and leave a way forward, like "we can talk about paying in parts".

Got a message from Miss Check? Checkio sent it on behalf of the person you owe. Here's how to check it's real.

About the closed beta

We're refining Miss Check with a few owners in Korea who are waiting to be paid.

  • Free. Use it and tell us what's inconvenient.
  • Works on phone or computer, nothing to install. If you use Rent Check, it continues right from the late-rent screen.
  • During the beta, a staff member checks each formal letter before it's posted.
  • Each owner's data is stored separately on servers in our office in Korea. Photos you upload are used only for that case.
  • Letter wording is being reviewed by a lawyer. Please read every letter before sending.
Join the waitlist for your country See Rent Check

Questions

Is Miss Check a legal service?

No. It's a tool that organizes the next step, the paperwork and the costs from the facts you enter. It doesn't replace legal advice, and for big disputes it suggests talking to a lawyer or accountant. We never take referral fees.

Does it collect the money for me?

No. Money always goes straight to your account. Miss Check helps you write letters in your name, send them, and check whether payment arrived. It never calls or visits the other person.

Do I have to send a formal letter first?

Not always. Depending on where you are, you may be able to go to court directly. A formal letter leaves a record that you officially asked, and in some places it affects deadlines, so it's usually worth sending first. Miss Check suggests which comes first in your situation.

Can I still get paid for an old debt?

Every kind of money has a time limit for claiming it, and it differs by country and by type. When one may be close, Miss Check suggests acting sooner and checking with a professional.

How is this different from Rent Check?

Rent Check tracks money that's due each month from your leases. Miss Check follows money that's already unpaid, until it's paid. They're the same app: tap "Start getting paid" on Rent Check's late-rent screen and it continues in Miss Check with nothing to retype.

Why "Miss Check"?

미수 (misu) is Korean for money you haven't received yet. Miss Check sounds just like it, and makes sure money you might otherwise miss gets checked off.

Who runs it?

ALE Corp. in Seoul, Korea, as part of the Doncheck family. Questions are welcome at alefniamc@gmail.com.

Work with us

Wherever money changes hands, experts help. We're looking for people to build the Doncheck family with.

PartnershipsPlatforms, associations and companies to build withContact us
ExpertsA page for accountants, tax advisers and lawyers to work with their clients' records (flat monthly fee)Ask about expert pages
Bring it to your countryLocal partners who want to launch and sell the Doncheck familyBecome a local partner

We never take referral fees for professional work. Expert pages are a flat monthly fee, the same no matter how many clients you have.