FullScale Hearing Test vs Hearing Number
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
FullScale Hearing Test
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A MUSIC-CENTRIC HEARING TEST Conventional hearing tests are built around speech. They check eight frequencies and stop at 8 kHz, because that band is where conversation lives. Music doesn't stop there, and neither do we. FullScale maps your hearing from 125 Hz to 20 kHz at up to 37 frequencies per ear, in about eight minutes. Our proprietary calibration keeps that measurement accurate across a growing list of headphones and earbuds. CORE FEATURES • Pick your resolution: 16-frequency core test, or up to 37 frequencies with psychoacoustic models • Four testing speeds to fit your schedule • Three scientific models (Audiometric, Bark, ERB) • Calibrated for a growing list of headphones and earbuds • Simple guided interface with clear visual results • Unlimited retests YOUR RESULTS • Full-spectrum curve compared against a normal-hearing reference • Traditional 4-point PTA for quick reference • Speech-region results in implied dB HL alongside standard dB • Clear interpretation, compatible with a traditional audiogram • No paywall on your own hearing data HEAR THE DIFFERENCE IMMEDIATELY When the test ends, FullScale builds a hearing-correction preset from your results, and you compare it against the original back to back, on the spot. Most people hear it in the first few seconds. Signed-in tests include 3 ARIA AI credits, enough to generate and audition an AI-refined preset. Additional credits are available if you test repeatedly or want to explore more presets, and credits carry across all Altitude apps. KEEP YOUR CORRECTION WITH ARIA ONE Sign in for your test and your profile follows you into ARIA ONE, our hearing-correction app. • No charge on mobile • Mac and Windows run a free tier, with a 30-day trial of the full feature set Finish the test, install ARIA ONE, and your hearing correction is set up and running. YOUR DATA Your hearing data is encrypted, exportable, and yours to delete. We don't sell it and we don't share it without your direct consent. WORKS WITH OVER 5,000 HEADPHONES AND EARBUDS Put on whatever you already own and start. The app handles the rest. • Preferred devices: 18 models we measured and calibrated ourselves, for the tightest high-frequency accuracy • Community database: thousands more headphones and earbuds from the AutoEq project, searchable in the app • Generic: don't see yours, or don't know the model? Choose generic and test anyway. You still get a full-spectrum profile. Our preferred devices: • Anker Soundcore Liberty 3 Pro • Apple AirPods® Generation 3 • Apple AirPods Pro® Generation 1 • Apple AirPods Pro® Generation 2 • Apple AirPods Max® • Beats Studio 3 • Jabra Elite 7 Pro • Kef Mu3 • Moondrop Alice • Sennheiser Momentum True Wireless 2 • Sennheiser Momentum True Wireless 3 • Sennheiser Momentum 4 • Skullcandy Crusher 1080 ANC • Sony WF-1000XM4 • Sony WF-1000XM5 • Sony WH-1000XM5 • Technics AZ60 • Technics AZ80 • Technics AZ100 NOTICE FullScale is not designed or intended as a diagnostic or treatment tool for any medical condition, disease, injury, handicap, or disability, and should not be relied on for self-management of health issues. For any hearing-related concern, consult a medical doctor or qualified health professional. FullScale can be used to improve sound personalization, or as a preparatory step before seeing a provider.
Hearing Number
Assess your hearing ability by determining the softest sound you can hear in each ear. Understand your unique Hearing Numbers to better protect your hearing and improve communication. Track changes over time and encourage others to take charge of their hearing wellness.
- Measure Hearing Numbers
- Track hearing changes over time
- Protect hearing wellness
- Share with friends and family
- Learn about hearing health
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How’s your hearing? Learn your Hearing Numbers—the softest sound you can hear in each ear—with an app created by the Johns Hopkins Bloomberg School of Public Health. Then use your Hearing Numbers to protect your hearing and hear better. Track your hearing to know how it changes over time and encourage others to know their hearing. Take charge of your hearing wellness! Hearing Numbers can be as low as -10 or as high as 100 decibels, or dB. The higher your Hearing Numbers are, the louder sounds will need to be for you to hear them, and the harder it will be to hear and communicate in noisy places. Requires headphones, a quiet space, and about 5 minutes to complete. No advertising, in-app purchases, or product recommendations. The app tests the noise level around you, measures your hearing levels at four frequencies in each ear, and provides your Hearing Numbers. Share the Hearing Number app and encourage your friends and family to learn their Hearing Numbers. Re-check your Hearing Numbers from time to time and review previous results to track how your hearing changes over time. Learn more about the Hearing Number and how to use it at app.HearingNumber.org. This app is created by the Johns Hopkins Bloomberg School of Public Health, seeking to empower people to know their hearing—millions at a time. Disclaimer This hearing wellness app does not constitute medical advice or diagnosis. You should consult with a health care provider for questions related to your hearing or if you are experiencing any of the following: ear pain or ringing, dizziness, ear drainage or a sense of something in your ear, sudden or fluctuating hearing loss, injury or deformity to your ear, or worse hearing in one ear (i.e., your right and left Hearing Numbers are different by more than 10 dB).
Screenshots
Verdict
The clearest difference is in-app purchases: Hearing Number at none against FullScale Hearing Test's 3. FullScale Hearing Test's advantage is update cadence (weekly vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. FullScale Hearing Test sells 3 one-off in-app purchases. Hearing Number asks for nothing beyond the download.
FullScale Hearing Test ships an update weekly, Hearing Number every 3 months. The most recent releases landed on November 12, 2026 and November 8, 2026 respectively.
| Parameter | FullScale Hearing Test | Hearing Number |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.9 (599 ratings) — better |
| Positive reviews | — | 42.9% of reviews |
| Number of ratings | — | 599 — better |
| Update frequency | Weekly — better | Every 3 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 445 MB | 17 MB |
| Age rating | 12+ | 12+ |
| Developer | Altitude Audio | Mimi Hearing Technologies |
In-app purchases
FullScale Hearing Test
- FullScale AI Credits$2.99
- Hearing Test Extended Report$4.99
- Fullscale Extended Report$4.99
Hearing Number
No in-app purchases
Questions
Is FullScale Hearing Test free?
Is Hearing Number free?
Do FullScale Hearing Test or Hearing Number have ads?
Which is updated more often, FullScale Hearing Test or Hearing Number?
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