We start by taking things away.

We strip out the features nobody uses and keep only what you reach for. No full-screen ads getting in your way, every single day.

Explore apps Our story

What is DESAIL?

DESAIL builds apps that keep only what matters.

Most apps compete by adding features. We go the other way. We remove what goes unused and make the things you do often as short as possible. What remains is speed and clarity.

Screen preview

See it on screens you already know.

Pick an app to look through its actual screens.

Ō Camera

Quiet moments shouldn't cost you image quality

1The controls float like glass. They never cover the shot you're framing.
2Zoom all the way to 10× and the image still holds up.
3Press the shutter and nothing sounds. There are no ads at all.

Explore Ō Camera

Budget

Know what's left without opening your wallet

1Open the app and your balance is right there in the middle. Nothing to hunt for.
2Red for money out, green for money in. Those are the only two buttons.
3The amount you enter updates right away.

Explore Budget

Balance

$109

Mobu

Build your instincts before you spend anything

1One social sign-in and you are in, with virtual capital on real Seoul transaction data.
2Buy and sell as you would for real. Losing costs you nothing.
3Compete on realised gains against every user nationwide.

Explore Mobu

Now +$0.00

In profit

Total assets

$1.41M

Properties

Three apps built on a single principle

Taking things away is our method. Instead of piling on features, we make the things you do daily as short as possible.

DESAIL

Ō Camera. Shoot in high quality with no shutter sound. Close the app and no record of your shots remains.

Budget. Skip the categories. Log an expense and see exactly what you have left.

Mobu. Practice buying and selling Seoul apartments on real transaction data — before you spend anything.

Shared principles. No full-screen ads that hijack your screen, and nothing sent to a server.

What's different

Building less is the harder job

How we decide what to cut

The tests we run before any feature earns its place.

Frequency: anything you don't do daily leaves the main screen.
Depth: if it takes more than one tap to reach, we redesign it.
Overlap: we don't rebuild what your phone already does better.
Cost: we never take over your screen to make money.

By the numbers

Apps shipped

Starting price

Free

Full-screen ads

Total downloads

1,000+

Principles

What we hold to

Four standards we apply to every app we ship.

No full-screen ads
We never cover your screen and make you hunt for the X.
Which means: Nothing breaks your flow while you're shooting or logging.
Stays on device
Your personal data stays on your phone. We do not send it to a server.
Which means: Close Ō Camera and no record of your shots remains in the app.
One thing per screen
Each screen does exactly one job, so you never have to hunt.
Which means: Budget shows what you can spend right on the home screen.
Free to start
It costs nothing to install and try. You only buy inside the app if you need more than the basics.
Which means: Install and start. Only Mobu needs an account, and one social sign-in covers it.