Got a calculation from your tenant? Here's what it is and where the number came from

MÖRK is the app your tenant used to work out the amount and send you a finished calculation. It doesn't collect any data about you — everything stays on the device of the person entering the readings. You can run all your own properties the same way — the app opens straight away, no account needed.

Utility meter readings

Readings, the calculation, the message. All in one place.

A note on the fridge remembers one month. The app remembers all of them.

For iPhone · No account

MÖRK — Landlord dashboard
Taras, apt. 4
Readings for August 2026
Total: 1 458,02 ₴
19:42
Reading · Electricity
0
4
1
8
2
7
Spending, last 6 months
1 458,02 ₴
Your data stays on your iPhone

Why it's convenient

One screen instead of a notebook and a calculator

Readings, rates, extra charges, and the final amount in one place. No need to keep last month's numbers in your head or dig up last year's notebook.

One screen instead of a notebook and a calculator
The message is ready — just send it

The app puts together the text with the readings, consumption, and amount, and shows it exactly as it will look in the chat. The landlord gets a calculation instead of a bare photo of the meter.

The message is ready — just send it
A wrong digit shows up right away

If a new reading is lower than the previous one, or consumption jumps far outside the usual range, the app warns you before you save it. One wrong digit is a tenfold difference in money.

A wrong digit shows up right away
The rate changed — past months stay as they were

Rates have a history. A new rate applies from the date it took effect; older periods are still calculated at the old one. Nothing needs to be recalculated.

Day and night are one meter

Multi-rate meters are entered as a single device with several digit groups. Waste collection, the building association, internet, and other fixed charges are added into the same total — the calculation comes out complete, not "utilities here, everything else there."

The meter photo stays in the history

You can attach a photo of the display to every entry. If a question comes up about a particular month six months later, there's something to look at — for both sides.

What the message looks like

Readings, the rate, and the total for the period — in one message. The landlord doesn't have to calculate anything from a photo of the meter.

Т
Taras, apt. 4online
Readings for August 2026
вул. Соборна 28, кв. 4
Cold water
0134 → 0138 · 4 м³ × 15,60 ₴ = 62,40 ₴
Hot water
0087 → 0090 · 3 м³ × 96,80 ₴ = 290,40 ₴
Electricity
04021,4 → 04182,7 · 161,3 кВт·год × 4,32 ₴ = 696,82 ₴
Gas
0912 → 0924 · 12 м³ × 8,20 ₴ = 98,40 ₴
Waste collection — 90,00 ₴
Building association — 220,00 ₴
Total: 1 458,02 ₴
Calculated in MORK
19:42

The app worked out every number. All the tenant had to do was tap "Send" — the calculation and signature are added automatically.

The numbers and rates here are the real data from the screens above; the arithmetic is genuine.

Renting out an apartment, a house, or a commercial space?

At the end of the month readings trickle in across different chats, and putting them together is left to you. Here all your properties sit on one screen: the total for the period, who has already submitted readings and who hasn't.

One property or ten

An apartment, a house, a room or an office — all kept the same way. The total for the period covers all of them at once.

You see who hasn't sent yet

Properties with no readings stay at the top of the list — no scrolling back through chats to recall who you're still waiting on.

The reminder is already written

The app shows who to write to and prepares the text. You send it to each of them where you already talk — in your own messenger.

Free, forever

Are you a tenant?

A typical apartment — cold and hot water, electricity, gas — fits entirely into the free version. No time limit, no ads, no account.

About 40 seconds a month
1 Enter the readings from your meters
2 Check the total — it adds up on its own
3 Send the finished message to the owner

Your data never leaves the device

Everything local

Readings, photos, and calculations are stored on your iPhone. MÖRK has no servers of its own — there's nowhere for your data to go.

No registration

No account, no password, no phone number. The app opens and works right away.

No tracking

No analytics, no advertising SDKs, no trackers. No one counts how many properties you have or for how much.

Backup is your own iCloud only, if you turn it on. More in the privacy policy.

What's in each version

Basic
Free, forever
One property and all of its meters
Readings, rates and extra charges
The total for the period, calculated for you
A ready message for the other side
The full history of entries, with no time limit
Extended
Once you have more than one property
Several properties — all on one screen
One combined total for the period across all of them
You see who has submitted readings and who hasn't
Rate history with effective dates
A photo of the reading on every entry

There is exactly one boundary: while you have a single property, everything stays free and stays unlimited in time. The extended version is what you need once there is more than one.

The current price in your currency is shown in the App Store.

Questions

Do I need an account?

No. The app opens right away — no registration, password, or phone number.

Where is the data stored?

Locally, on your iPhone. Backup is your own iCloud only, if you turn it on.

Do I have to photograph the meter?

No. Readings are entered manually; you can attach a photo to a record for your own history, but it isn't required.

What happens when the rate changes?

The new rate applies from the date it took effect; older periods are still calculated at the old rate.

How much does it cost?

The basic features are free, the extended ones are paid. The current price in your currency is shown in the App Store.

Can I manage my own apartment and the ones I rent out at the same time?

Yes. Your profile has a Tenant / Landlord role switch — it's the same set of properties, just viewed from a different angle. The data is shared, so you never enter anything twice.

Where the name comes from

Mǫrk was a unit of silver the Vikings used to settle trade — a measure both sides of a deal trusted. MÖRK is the same idea for utility readings: one set of numbers, one calculation, no disputes.

Readings, the calculation, and a message — in a minute