Know your body. Together.
Free, clinically-informed self-checks for hearing, vision, sleep, stress and more — plus an AI that reads and analyses your results, explains what they mean, and helps you decide what to do next.
240,000+ members · free forever · reviewed by clinicians
Your health profile
Built from your self-checks
Hearing
Mild
Vision
20/20
Sleep
72
Stress
Low
Every test built on established clinical methods
From curious to clear in four steps.
No appointments, no waiting rooms, no cost. Just open a test and go.
- 01
Pick a self-check
Choose from dozens of clinically-grounded tests across hearing, vision, mind, sleep, heart and more.
- 02
Take it in your browser
Each test runs right here in two to five minutes — nothing to download, nothing to install.
- 03
See clinically-framed results
Get your score the way a clinician would read it, with clear context on what it does and doesn't mean.
- 04
Let the AI read & track them
Our assistant interprets your results, connects them over time, and flags when to see a real clinician.
Dozens of self-checks. One place to understand them.
Run any test in your browser, free, as often as you like. Your results stay private and feed your AI analysis.
Online Hearing Test: Pure-Tone Audiometry & Audiogram
Map the faintest tones you can hear with this online hearing test and get a real pure-tone audiogram for each ear.
Take a testTinnitus Frequency Match
Pinpoint the exact pitch of your ringing — the basis of sound therapy.
Take a testHearing Age Test
The highest frequency you can hear reveals how your ears are ageing.
Take a testVisual Acuity Test
A Snellen-style sharpness check you calibrate to your own screen and distance.
Take a testGAD-7 Anxiety Test: Free Online Screening & Scoring
Seven validated questions that score your anxiety from 0 to 21 and explain what your GAD-7 result means.
Take a testSleep Quality Index
A short, evidence-based look at how well — not just how long — you sleep.
Take a testNew self-checks added every month — suggested by the community.
Ten areas of health. Dozens of self-checks.
Every test is grouped by what it looks at, so you can go straight to what matters to you today.
Hearing
24 testsAudiograms, tinnitus and safe-listening checks for how you hear.
Vision
22 testsAcuity, colour, contrast and macular self-checks for how you see.
Mind
17 testsValidated screeners for anxiety, mood, focus and wellbeing.
Sleep
7 testsSleepiness, quality, chronotype and apnoea-risk self-checks.
Heart
6 testsPulse, blood pressure and cardiovascular-risk self-checks.
Cognition
11 testsReaction time, memory, attention and reasoning challenges.
Personality
10 testsBig-Five, type, attachment and other self-knowledge profiles.
Body
8 testsBMI, body-fat, ideal-weight and other body-composition tools.
Fitness
10 testsVO₂max, fitness age, strength, flexibility and balance checks.
Senses
4 testsSmell, taste, touch and skin-type self-checks for your other senses.
It doesn't just score you. It analyses you.
Take any test and our assistant reads the actual numbers — your audiogram, your tinnitus pitch, your sleep score — and analyses them together. It spots patterns over time, flags what's worth watching, and tells you honestly when to see a real clinician.
- Reads & interprets every result you record
- Connects the dots across tests and over time
- Flags red flags and recommends a human doctor
AI Analysis · reading your results
I've analysed your latest tests. Your right ear shows a notch at 4 kHz, and your hearing-age test came back at 38 — both point to early noise-related change rather than ageing.
Is that something to worry about?
It's mild and common. I'd protect your ears at loud events and re-test in 6 months. Nothing here is a red flag — but if it ever feels one-sided or sudden, see an audiologist.
Plain-English guides, written and clinically reviewed.
Understand what each test measures and what your results really mean — before and after you take them.
Social Anxiety vs. Shyness: Signs, Test & Help
How to tell ordinary shyness from social anxiety disorder — the key signs, a 3-question validated screen (Mini-SPIN), and what actually helps.
By Daniel ReyesRead the guideInsomnia vs. Sleep Apnea: Which Problem Do You Have?
Insomnia and sleep apnoea both wreck your sleep but in opposite ways. Learn the tell-tale signs of each, the validated tests for both, and how to tell them apart.
By Maya LindqvistRead the guideGAD-7 Anxiety Test: Scoring & What Your Score Means
A clear guide to GAD-7 scoring: how the 7 questions are scored 0–21, what each severity band (minimal, mild, moderate, severe) means, and the 10-point cut-off for likely anxiety.
By Maya LindqvistRead the guideEvery test, checked by a credentialed clinician.
Our tools and guides are reviewed by practising audiologists, optometrists and physicians — so the framing you read is the framing they'd use in clinic.
Health is better understood together.
The Institute isn't a clinic and it isn't a shop. It's a growing community of people who'd rather understand their own bodies — sharing what they learn, asking questions, and getting clear answers backed by clinical evidence.