Private · Offline · One app

One app for all of you.

Your money and your health — plus your plans and notes — in one private app that lives only on your device.

Get access See how it works

No account
No cloud
No bank connection
Works fully offline

The MRLN Overview screen: one dashboard showing budget, income, savings and health at a glance. — Example data — a demo profile named Alex, not a real person.

Your money.

Your health.

One place.

Why MRLN exists

Your life is already connected. Your apps aren't.

Your money, your health, your plans and your notes all shape each other — but they live in separate apps that never talk, and most of them keep a copy of your life on someone else's server. MRLN brings them together in one place, and keeps every number on your device.

Today — scattered across

A banking app
A budgeting app
A calorie tracker
Your notes app
Your calendar
A watch-list somewhere

With MRLN — together

One private app Money, health, planning and personal notes in one place — and every number stays on your device.

Your data stays yours.

The difference that matters

Private by architecture, not by promise.

Most apps promise not to misuse your data. MRLN can't misuse it — there is no server, no account, and no copy of your life anywhere but your device.

No ads from your spending

MRLN never sees what you earn or spend, so it can never be turned into a targeted ad.

No one reading your notes

Your journal and numbers sit on your device, not on our servers. There is no copy for anyone to read.

No cloud account to breach

No sign-up, no cloud, no password. There is no account to hack, leak, or reset.

No bank permissions

MRLN never connects to your bank. You type what you want to track — nothing is pulled in behind your back.

Prove it yourself: turn on airplane mode and open MRLN — everything you've saved still works, because your data never needed the network.

No cloudNothing is uploaded, because there is nowhere to upload it.
No accountNo sign-up and no password, so there is nothing to breach.
No trackingNo analytics and no ad identifiers, on this page or in the app.

Your private operating system.

One app, your whole life

Everything you track, in five areas.

Each area answers a real question — not just stores numbers. All of it runs offline on your device.

Money

Know exactly where your money goes.

Budget — every bill and subscription in one calm list
Income Log — built for variable and freelance pay
Tax Helper — an unofficial estimate across 12 countries
Savings & projection — set a goal, see where you land

Health

See the habits that actually move the needle.

Gym — write your training split once, keep it in your pocket
Food Log — calories and macros, estimated offline
Weight & records — your trend over time, at a glance

Planning

Your bills and your life on one calendar.

Calendar — rent, birthdays and plans, with notes inside each day
Media — a watch-list and a ranked list of films and shows

Personal

A private notebook that stays private.

Notebook — lists, ideas and reminders, saved with your file
Stats & grade — one clear read on money, body and income

Assistant

Ask in plain words; answered from your own numbers.

“Can I afford this?” — the assistant answers from the data you entered
Runs on your device — nothing is uploaded, and no outside AI service is called

Not five apps.

One.

The honest part

About a minute a day.

There are no bank connections, so you enter your own numbers — but far less often than you'd expect. Set up your fixed costs once; after that, logging a meal, a plan or an expense takes seconds.

How it works

Three steps, then a minute a day.

MRLN runs in your browser and saves to your device. Set it up once — after that, most days are just a few taps.

Unlock with your key
Open mrln.online and paste the access key from your welcome email. No account, no sign-up.
Enter income and fixed costs
Rent, subscriptions, transport. Every tab builds on these numbers, so you only enter them once.
Log as you live
Meals, training, plans, films. Each entry takes seconds, and everything saves to your file.

Budget

Every recurring cost in one place. Change a number once and your cash flow, savings projection and grade update with it.

Training

Write your split once — days, lifts, sets. It's in your pocket at the gym, next to your body stats and calorie targets.

Meals

Type what you ate. MRLN estimates calories and macros offline and keeps a running daily total against your target.

Calendar

Rent due, birthdays, plans. A dot on the day, notes inside it — bills and life on the same page.

Notes

Lists, ideas, reminders. They save with your file on your device — not to a cloud.

Films & shows

Log what you watch and rate it. A ranked list builds itself — ready the next time someone asks what's worth seeing.

Tap any screenshot to enlarge it.

All screenshots show the app's demo profile — example data, not a real person.

Where your data lives

Your data stays on the device you use — and you can move it yourself.

Because nothing is stored on a server, your data lives in whatever you opened MRLN in. That's the whole point — and it means moving between devices is something you do, not something a cloud does for you.

In your browser

Open mrln.online in a browser and your data saves in that browser, on that device. Switch to a different browser or another phone and it starts empty — because your data never left the first one.

Saved in this browser

You export, you import

Installed as an app

Add MRLN to your home screen and it gets its own storage on that device, separate from the browser — the same private data, in a standalone app that opens offline.

Saved in the app

Your data moves when you move it — and only you ever hold a copy. Export it to a file, open MRLN on the other device, and load it back in; nothing syncs behind your back. Even if your key lapses, you can export straight from the lock screen — it's yours to keep. Keep a copy somewhere safe: because there's no server, if you clear your browser or lose the device, whatever was only there is gone.

Pricing

One simple plan.

MRLN is a paid app you unlock with an access key. It costs nothing to run — no ads, and your data is never sold, because it never leaves your device.

Access key

$9.99/ month

or $69 / year — save 42%, under $6/month

Money, health, planning, personal notes and the assistant — every feature included.

One simple plan — every feature included
30-day money-back guarantee
Cancel anytime
Your data stays yours, on your device
No ads, never sold

Get yearly — $69/year

Prefer monthly? Get access for $9.99/month →

Secure checkout · your access key emailed shortly after payment · shown in USD, local currency at checkout.

Built by one person, not a company — no investors, no ad model, and no data to sell. You're the customer, not the product.

Good to know

Questions, answered plainly.

Why put everything in one app instead of five specialized ones?

Because your money, health and plans affect each other, and five apps can't see across themselves. In MRLN, a change to your budget updates your savings and your grade at once — and it's all under one private roof, on your device, with nothing syncing out.

Does MRLN connect to my bank?

No — and there's no "connect your bank" button to hunt for. You type in what you want to track, and it never leaves your device.

Where is my data stored — the browser or the app?

Wherever you opened it. In a browser, your data saves in that browser on that device. Installed to your home screen, the app keeps its own storage on that device. Neither one is on a server, and neither syncs to the other — you move data between them yourself.

Can I move my data to a new phone?

Yes — you carry it over yourself. Export a copy of your data to a file, open MRLN on the new phone, and load it back in. It takes seconds, and no copy ever passes through a server on the way.

Is the assistant private?

Yes. The assistant runs on your device and answers from the numbers you've entered. Nothing is uploaded, and no outside AI service is called — asking it a question keeps your data exactly where it already was.

What happens if I stop paying, or MRLN disappears?

The app locks without an active key — but your data is never held hostage. You can export every number you've entered straight from the lock screen, as a plain file that's yours to keep. Nothing is deleted, and there's no server holding a copy to lose. Your data was always on your device; it stays there.

Does it get slower as years of data build up?

No. Everything runs on your device with no network round-trip to wait on, so it stays fast as your history grows — there's no server call that gets slower the more you add.

What if I lose my phone?

Straight answer: whatever's only on that phone is gone — same as any notes app. That's the honest trade for keeping nothing on a server. So once you've added a lot, MRLN nudges you to save a copy — back it up like you save your photos. It's a one-tap export; keep a copy somewhere safe and a new phone restores it in seconds.

Is it just for one person, or can a couple use it?

Either. There's no account tying MRLN to one identity, so a couple can each keep their own private file on their own phones, or share a single file on one device — whatever fits. Each access key unlocks the app; how you split things is up to you.

Is the Tax Helper official tax advice?

No. It gives an unofficial estimate across 12 countries to help you plan. It isn't tax advice — check with a professional for anything official.

Are the health features medical advice?

No. The gym, food and weight tools are for general information and tracking. They're not medical advice — talk to a professional about your health. MRLN is for ages 16 and up.

How much does it cost?

MRLN is a paid app — you buy an access key: $9.99/month, or $69/year (save 42%, under $6/month). There are no ads and your data is never sold, and it comes with a 30-day money-back guarantee.

Can I try it before I buy?

There's no separate free trial, but every purchase is covered by a 30-day money-back guarantee — so you can use the full app, and if it isn't for you, email us within 30 days for a refund. No risk either way.

Why pay when there are free budgeting apps?

Free apps are usually free because your data is the product — sold, or used to target ads. MRLN charges a small fee instead, so it never has to. And it keeps your money and your health in one place, fully offline, which the free single-purpose apps don't.

Ready when you are