What if you could earn real money just by playing a game on your phone?

That’s exactly what you can do with a free app called DiagnosUs.

It’s a medical game that pays you to analyze real clinical cases, compete with others, and help improve artificial intelligence in healthcare — all from your iPhone or iPad.

No gems to collect.
No levels to grind through.
No ads to watch.

Just real cases, real skills — and real cash for your time.

In this post, I’ll walk you through everything you need to know about DiagnosUs: what it is, how it works, who can join, and how much you can actually earn.

Let’s get started.

What is DiagnosUs?

DiagnosUs is a free-to-play medical game app developed by Centaur Labs.

It presents real-world clinical cases — like medical images and diagnostic tasks — and lets you analyze them in a competitive, game-like format. The more accurate your answers, the higher you rank.

In return, you win cash prizes, improve your medical skills, and contribute to cutting-edge medical AI research.

It’s currently available only on the App Store for iPhone and iPad.

Who can join DiagnosUs?

Anyone can download and play DiagnosUs — no medical degree required.

That said, doctors, nurses, medical students, and healthcare professionals have a natural edge due to the clinical nature of the app.

But even if you’re not in medicine, you can still participate, learn, compete, and earn. 

If you enjoy logic-based games, trivia, or visual analysis, DiagnosUs can be surprisingly fun — and rewarding.

Again, it’s only available on iOS for now.

How does it work?

Here’s what the process looks like:

1. Download and sign up – Grab DiagnosUs from the App Store, install it on your iPhone or iPad, and create a free account.

2. Explore medical cases – Once inside, browse a library of real-world medical scenarios. You’ll see cases across a range of specialties like radiology, dermatology, cardiology, neurology, and more.

3. Analyze and diagnose – Dive into each case. You might be reviewing skin photos, X-rays, ultrasounds, or answering text-based questions. Your goal is to provide accurate assessments based on what you see.

4. Compete with others – DiagnosUs is part game, part challenge. You’ll be competing with users from around the world. The more accurate and fast you are, the higher you rank on the leaderboards.

5. Earn cash rewards – Perform well, and you’ll earn money. Some users make up to $50 a day just by playing a couple of hours.

6. Withdraw your earnings – Cash out your rewards through PayPal.

DOWNLOAD DIAGNOSUS ➤

What kinds of cases can I expect?

DiagnosUs covers a wide variety of medical topics — and no two cases are exactly the same.

You might be shown:

• Dermatology images to spot conditions like melanoma, psoriasis, or dermatitis
• Chest X-rays to identify pneumonia, tuberculosis, or other abnormalities
• Ultrasound clips to determine gallbladder issues or fetal gender
• Ophthalmology photos to detect eye diseases
• Cardiology and neurology scans for more complex diagnoses

Sometimes you’ll get short text-based questions.
Other times, you’ll be analyzing real images or videos.

The specialties represented in the app include radiology, dermatology, pediatrics, surgery, internal medicine, pathology, orthopaedics, family medicine, emergency medicine, and more.

It’s not just for fun — these are real cases used to train artificial intelligence, and your answers help make that AI smarter and more accurate.

How much can I earn?

Earnings vary by contest and your performance, but some players report making up to $50 a day just by playing a couple of hours.

There’s no guaranteed income — you have to earn it by ranking high in accuracy.

But if you’re consistent and competitive, the rewards can add up.

Payouts are made through PayPal.

Why should I join DiagnosUs?

Because it’s one of the rare apps that pays you for thinking — not just tapping.

It combines competitive gameplay, real-world medical training, and a meaningful mission.

You’re not just playing a game.
You’re helping improve artificial intelligence in healthcare.

And the money isn’t bad either — especially for something you can do on your phone during your downtime.

If you’re someone who enjoys learning, solving complex problems, or just trying something different from the usual cash apps, DiagnosUs is worth a shot.

How do I get started?

Click the button below to download DiagnosUs from the App Store (iOS only), create your free account, and start playing.

DOWNLOAD DIAGNOSUS ➤

Final thoughts

DiagnosUs isn’t your average money-making app.
It doesn’t rely on gimmicks, ads, or passive tasks.

Instead, it challenges you to think critically, apply clinical reasoning, and engage with real medical material — all while offering meaningful rewards.

It’s an app that respects your time and intellect.

Whether you have a background in healthcare or simply enjoy learning through challenge, DiagnosUs gives you the chance to contribute to something bigger — and get paid for it.

If you’re looking for a smarter way to use your screen time, this is it.