Hearing Test & Eye Chart: Hark
Ear Age, Vision & Color Blind
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
How old are your ears? A one-minute sweep gives you the number — then a hearing check, a words-in-noise test and an eye chart, labelled with the gear and room they used.
Find out how old your ears are — and how sharp your eyes are — in five minutes, with the headphones you already own.
HEARING
• Ear age: a tone climbs from 8 to 20 kHz; where it vanishes is your number.
• Hearing check: six frequencies per ear, one beep at a time, drawn as a threshold curve and explained in plain words.
• Words in noise: three spoken digits buried in noise. The answer is a ratio, not a level, so it holds up when you change headphones — and it is the check that matches "I hear fine, I just can't follow anyone in a busy room".
• Tinnitus tone matcher: find the pitch of the ringing and save it.
VISION
• Eye chart at one metre with live distance guidance from the front camera — the letters are drawn for the distance you actually are.
• Contrast, colour plates (made for Hark, with "I don't see a number" as a real answer), an astigmatism dial and an Amsler grid.
HONEST ON ANY HEADPHONES
Hark runs on whatever you own and never refuses to start. Four Apple models have a reference profile, so results come out as an estimate in dB HL; every other pair is labelled relative. Every result carries its headphones and volume, and the ledger only compares like with like — so "results depend on your headphones" stops being a surprise and becomes a label.
IT NOTICES WHEN A TEST GOES WRONG
Four seconds of the microphone before a hearing check tells you whether the room is quiet enough — a room louder than the tones is what gets measured otherwise. While the test runs, Hark watches the output: if your earbuds drop out, the volume moves or a call interrupts, it stops, says exactly what happened, and re-runs that frequency. Whatever the conditions were is written on the result, good or bad.
TRENDS, AND SOMETHING TO HAND OVER
Every check plots over time, within one set of gear at a time — a change of headphones is never drawn as a change in you. Export the whole ledger as a PDF for an audiologist or optometrist: the numbers, the gear, the room, and a method page at the back that says exactly how each one was produced and what it cannot mean.
FOR THE WHOLE HOUSEHOLD
Up to five profiles, one subscription. Test everyone on the same earbuds and compare. Six-month re-check reminders, per person. Save a calibrated audiogram to Apple Health with one tap — and only when you tap.
No account. No ads. Nothing leaves your phone except anonymous usage counts.
Hark is a screening app, not a medical device. It does not diagnose anything; results are estimates. For a diagnosis, see an audiologist or an optometrist.
Hark Pro is an auto-renewing subscription (yearly with a free trial, or weekly). Payment is charged to your Apple Account; it renews unless cancelled at least 24 hours before the period ends, in Settings › Subscriptions.
Privacy Policy: https://hark-hearing.vercel.app/privacy/
Terms of Service: https://hark-hearing.vercel.app/terms/
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Support: https://hark-hearing.vercel.app/support/
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Ludovic PUAUD, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Ludovic PUAUD
- Size
- 14.7 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
13+
- 13+
- Infrequent
Medical Treatment information
- In-App Purchases
Yes
- Hark Pro Weekly — Hearing & Vision $3.99
- Hark Pro Yearly — Audiogram & Eyes $19.99
- Copyright
- © 2026 Ludovic Puaud
