Comparison

FourierSleep vs Hearing Test

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

FourierSleep

Features
Read full description

FourierSleep is a snore-focused sleep recording app that helps you understand your night with clear, actionable reports. Place your iPhone near your bed, start a session before sleep, and review your results in the morning. Key Features - 100% on-device analysis: recording and detection stay on your iPhone by default. - Smart snore detection: identifies snore events using STFT/FFT spectral analysis. - Morning report: view total snore duration, event count, intensity distribution, and key periods. - Night timeline: review changes across the night and spot high-intensity segments quickly. - Trend tracking: monitor weekly/monthly patterns to see how your sleep is changing. - Flexible recording: supports manual start/stop and nightly schedule reminders. - Data control: export/import and local cleanup tools keep you in control. - Pro upgrade: unlock 30-day, 3-month, and 1-year trends with deeper insights. FourierSleep is for wellness tracking and habit improvement. It is not a medical diagnosis or treatment tool.

About

Hearing Test

This app provides a personal hearing assessment tool, allowing users to conduct pure tone audiometry and estimate their "ear age." It visualizes results in an audiogram and tracks changes over time, all while prioritizing user privacy.

Highlights
  • Pure tone audiometry at home
  • Ear age estimation
  • Audiogram visualization
  • Hearing health tracking
  • Private data storage
  • Apple Health integration
Features
Read full description

Hearing Test: Ear Age Test brings pure tone audiometry straight to your pocket. Check your hearing, estimate your ear age, visualize your audiogram and track changes over time — all privately on your iPhone. Built for anyone who wants to monitor their hearing health, understand age-related hearing decline, establish a baseline before visiting an audiologist or simply get a clearer picture of their hearing capacity. HEARING TEST — PURE TONE AUDIOMETRY • At-home hearing check using pure tone audiometry • 9 frequencies from 125 Hz to 8 kHz • Separate left and right ear testing with headphones • Speaker mode for a quick single-channel test • Ascending/descending methodology for accurate thresholds • False positive catch trials to verify reliability • Pure Tone Average (PTA) calculated automatically • Ambient noise check before each test for reliable results EAR AGE TEST — HIGH FREQUENCY CHECK • Estimate your "hearing age" through high-frequency response • 10 steps from 8 kHz up to 20 kHz • Age estimation based on the highest frequency you can hear • Gamified experience with animated feedback • Color-coded results and emoji indicators AUDIOGRAM — VISUALIZE YOUR HEARING • Full audiogram chart with frequency and threshold axes • Classification zones: Normal, Mild, Moderate, Severe • Separate lines for left (X) and right (O) ears • Headphones and speaker mode support • Reliability indicator on every test HEARING CLASSIFICATION • Automatic classification from your PTA value • Normal (≤25 dB) • Mild (26–40 dB) • Moderate (41–55 dB) • Moderately Severe (56–70 dB) • Severe (71–90 dB) • Profound (>90 dB) RESULTS AND HISTORY • Save every test with date and time • Chronological history for hearing and ear age tests • Detailed result view with the full audiogram • Per-ear PTA values and hearing classification • Summary cards on the home screen • Delete a single test or clear everything ICLOUD SYNC • Automatic sync across iPhone and iPad • Private CloudKit backup to your Apple ID • Your hearing history always with you APPLE HEALTH • Optional audiogram export to Apple Health • Frequency-specific thresholds in dB HL • Track your hearing alongside other health metrics • Requires your explicit permission CUSTOMIZATION • Choose which frequencies to include in your test • Enable or disable individual frequencies • Estimated test duration updates automatically • Light and Dark mode • Full Dynamic Type support PRIVATE BY DESIGN Your hearing data stays with you. • No ads • No tracking SDKs • No analytics collection • No data sold or shared • Local storage by default, iCloud only with your consent PREMIUM Upgrade to unlock: • Full Hearing Test • Ear Age Test • Audiogram and detailed results • Apple Health integration • iCloud sync across devices • All future features Premium is available as an auto-renewing in-app subscription. Payment is charged to your Apple ID at confirmation of purchase and renews automatically unless cancelled at least 24 hours before the end of the current period. Subscriptions can be managed and auto-renewal turned off in your Apple ID account settings. Free: view and manage your saved test history. Whether you want to check your hearing, monitor changes over time, estimate your ear age or take a baseline before seeing an audiologist, Hearing Test: Ear Age Test gives you a complete hearing assessment tool in one app. Download now and take care of your hearing. Note: This app is for personal, informational use only. It is not a medical device and does not replace a professional audiologist or a clinical diagnosis. Terms of Use (EULA): https://ern.digital/hearingtest/terms Privacy Policy: https://ern.digital/hearingtest/privacy

Screenshots

FourierSleep4 screens
Hearing Test4 screens

Verdict

The call

The clearest difference is update cadence: FourierSleep at daily against Hearing Test's monthly. On price, ads, in-app purchases and device support 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. FourierSleep sells 1 one-off in-app purchase and Hearing Test sells 3 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

FourierSleep ships an update daily, Hearing Test monthly. The most recent releases landed on October 7, 2026 and October 19, 2026 respectively.

Scorecard1 real difference · 9 level
FourierSleep versus Hearing Test: the parameters behind the verdict, then further details
ParameterFourierSleepHearing Test
PriceFreeFree
Rating—3.0 (2 ratings) — better
Positive reviews—0.0% of reviews
Number of ratings—2 — better
Update frequencyDaily — betterMonthly
AdsNoNo
In-app purchasesYesYes
Monetization—Free with in-app purchases
DevicesiPhoneiPhone, iPad — better
Requires iOS17.016.0 — better
Further details — not scored
Size18 MB29 MB
Age rating4+12+
DeveloperTANG CHENGJUNEren Arda Carboga

In-app purchases

1 purchases

FourierSleep

One-time1
  • Unlock PRO$4.99
3 purchases

Hearing Test

Subscriptions2
  • Weekly Premium3 Days trial$4.997 Days
  • Monthly Premium$9.991 Month
One-time1
  • Lifetime Premium$39.99

Questions

Is FourierSleep free?
FourierSleep is free to download, with in-app purchases available.
Is Hearing Test free?
Hearing Test is free to download, with in-app purchases available.
Do FourierSleep or Hearing Test have ads?
Neither FourierSleep nor Hearing Test shows ads.
Which is updated more often, FourierSleep or Hearing Test?
FourierSleep ships an update daily, and Hearing Test monthly. Most recently, FourierSleep was updated on October 7, 2026 and Hearing Test on October 19, 2026.

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