FullScale Hearing Test vs Keepwear
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.
Keepwear
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Your orthodontist asked for a number of hours a day. Keepwear counts them without a stopwatch you have to remember to press. Tap once when your trays come out, once when they go back in, and fix any entry later if you forget. Keep tracking after treatment too: retainer mode swaps the daily goal for a nightly one. No account, no ads, and your log never leaves your iPhone. LOG THE TIME OUT, NOT THE TIME IN • Your appliance is in except when it is out, so a day takes three or four taps instead of constant vigilance • Forgot to tap? Add the removal afterwards, at any time, on any day — that is a normal way to use Keepwear, not a workaround • Tap any day on the calendar to correct it, however long ago it was • A day with nothing logged is marked untracked, never counted as a perfect day THE NUMBER THAT GOVERNS YOUR DAY • "You can be out for another 1h 12m today" — the figure you actually need at lunchtime • A live count while your trays are out, on the Lock Screen and in the Dynamic Island • An optional nudge to put them back in after a set number of minutes • Home-screen and Lock Screen widgets, plus Siri and Shortcuts, to log without opening the app YOUR TRAYS AND YOUR CALENDAR • Current tray, day of the tray, and a countdown to the next change with a reminder the morning it is due • Already swapped late? Say which tray you are on and the series renumbers around you • A month at a glance, each day green, amber or grey • Streaks that survive a bad day: one missed day between good ones does not erase months of work AFTER TREATMENT • Retainer mode asks one question a day — worn, or not • A nightly streak and an optional evening reminder • Track an aligner and a retainer at the same time with Pro KEEPWEAR PRO • Your whole tray plan: every tray with its dates and an auto-advancing schedule • All of your history: 90-day and all-time trends, averages, and the weekdays your hours go missing • Tray photos, one per change, stitched into a time-lapse — stored on your iPhone only • Doctor report: export your daily wear as a CSV to hand over at your next appointment • Two appliances at once, and custom reminder rules PRIVATE BY DESIGN • No account and nothing to sign in to • No ads and no tracking • Your log and your photos stay on this iPhone • Delete everything with one button Keepwear works with clear aligners and retainers from any maker. It is a timer and a log: it is not a medical device, it gives no orthodontic advice, it does not tell you how long to wear anything, and it does not replace your orthodontist. The wear time it tracks is the one you enter, as prescribed to you. Keepwear is not affiliated with, endorsed by, or connected to any aligner or retainer manufacturer. Pro is available monthly, yearly with a free trial for eligible new subscribers, or as a one-time lifetime purchase. Prices appear in the app and on Apple's purchase sheet. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period; manage them in your App Store account settings. Privacy Policy: https://myzalife.com/privacypolicy Terms of Service: https://myzalife.com/terms-of-service Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is device support: FullScale Hearing Test at 3 against Keepwear's 1. FullScale Hearing Test also leads on iOS requirement (15.0 vs 17.0). On price, ads and in-app purchases 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 and Keepwear sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.
| Parameter | FullScale Hearing Test | Keepwear |
|---|---|---|
| Price | Free | Free |
| Update frequency | Weekly | — |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 445 MB | 9 MB |
| Age rating | 12+ | 4+ |
| Developer | Altitude Audio | MULTITECHNIQUE BUSINESS COMAPNUY INVESTMENT |
In-app purchases
FullScale Hearing Test
- FullScale AI Credits$2.99
- Hearing Test Extended Report$4.99
- Fullscale Extended Report$4.99
Keepwear
- Keepwear Pro Monthly$4.991 Month
- Keepwear Pro Yearly7 Days trial$24.991 Year
- Keepwear Pro Lifetime$39.99
Questions
Is FullScale Hearing Test free?
Is Keepwear free?
Do FullScale Hearing Test or Keepwear have ads?
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