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.

Readings, the calculation, and a message — all in one place

It all stays on your iPhone.

Reading
0
4
1
8
2
7
Consumed
161,3 кВт·год
To pay
696,82 ₴
MÖRK — головна орендодавця

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

Not a screenshot of the app — this is exactly how it looks in the chat. A landlord who came from the signature below will recognize it at a glance.

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.

Free, forever

Are you a tenant?

Submit your readings in 40 seconds. A typical apartment with four utilities fits entirely into the free version — with no time limit.

Managing several properties?
An extended version, by subscription
Several properties at once
Rate history and photos on every entry

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
Tracking readings and rates
Automatic calculation of the amount
A ready message for the owner/tenant
One property, full history of entries
Extended
Several properties at once
Rate history with effective dates
A photo of the reading on every entry
iCloud backup

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.

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