App directory
Hearing Number
Hearing Number
Measures right and left ear Hearing Numbers for hearing awareness.
Features
Audio input & output
- Supported: Audio inputsDevice microphone
- Supported: Live outputsHeadphone audio
Compatibility
- Supported: Required hardwareheadphones (wired or Bluetooth)
Hearing checks & protection
- Conditional: Hearing screening7iPhone · Android only
- Conditional: Separate ear results7iPhone · Android only
- Conditional: Sound-level measurement8
- Supported: Test headphonesHeadphones required. Validated ("supported") models include Apple AirPods (1st–5th gen), AirPods Pro (1st–3rd gen), AirPods Max and EarPods, plus listed Anker Soundcore, Asus, B&O, Beats, Bose, Bowers & Wilkins, Creative, Jabra, JBL, OnePlus, Nothing, Razer, Samsung Galaxy Buds 2 Pro/FE, Sennheiser, Skullcandy, Sony, SteelSeries, Turtle Beach and V-Moda models. Other wired/Bluetooth headphones work with possibly reduced accuracy. Turn off EQ, spatial audio, noise cancellation/transparency and accessibility audio settings; fit tightly and symmetrically.
Availability & access
- Supported: Account requirement1None
Research & evidence
- Conditional: Published test protocol6
- Evidence: 1.1.1 Hearing test.
- No account or enrollment needed; the developer does not intend the app for under-18s, and minors need a parent's or legal guardian's approval to download or use it.
- Available in all countries except mainland China, per the Johns Hopkins FAQ (which also states a target of a mainland-China release by end of 2025; that target date has passed and was not confirmed).
- Evidence: 1.1.2 Data processed by taking hearing tests; 3. Local storage.
- By emailed data-subject request to privacy@mimi.io (GDPR access/portability right); no in-app export is documented. Evidence: 4. Your rights.
- The developer states the test meets the published ANSI/CTA-2118 methodology and is modeled on Békésy tracking; the app's own validation protocol and studies are not published or cited.
- Check supported headphones and regional availability; this is distinct from the withdrawn Android Mimi Hearing Test.
- Only as an ambient-noise check that is part of the hearing test; no standalone sound-level meter or reported dB reading is documented.
App Store ratings & reviews
Praise
- Reviewers describe a quick test and a welcome update.
Complaints
- Other sampled reviewers object to headset requirements or report that their headphones were not recognized.
Google Play ratings & reviews
Complaints
- Headphone compatibility and calibration coverage are recurring concerns.
Mixed reports
- Users find tracking useful, but reports about agreement with professional tests vary.
- Many find the test easy or quick; some encounter setup, permission or connection barriers.