Comparison

QuietScore vs TrueDetect Device Test

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

Head to head
About

QuietScore

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QuietScore measures how much noise your doors and windows actually block: a Sound Isolation Score in about 60 seconds, using your iPhone and a Bluetooth or AirPlay speaker. No lab equipment, no calibration, no sign-up. It is a practical estimate, on a scale comparable to professional STC ratings, and it is the number that tells you whether to sign the lease, whether your conference calls can be heard from the next room, whether the studio treatment worked, or whether last weekend's weatherstripping did anything at all. HOW IT WORKS 1. Put a Bluetooth or AirPlay speaker inside the room 2. Step outside with your phone and take a reading with the door open 3. Close the door and take the second reading The app plays test tones through the speaker and measures how much of them survives the trip through your door or window. Same spot for both readings, only the door changes: your score is the difference between the two, which is why nothing needs calibrating. About 60 seconds once the speaker is connected. WHAT YOU GET โ€ข Sound Isolation Score, one number for the whole door or window โ€ข Privacy Rating: Excellent, Good, Moderate or Poor โ€ข Four-tone breakdown โ€” 125 Hz, 500 Hz, 1 kHz and 4 kHz, so you can see whether it's bass, HVAC hum or speech that gets through โ€ข Rooms and history โ€” save each result to a room, add a note about what you changed, and see the difference since the last measurement โ€ข PDF reports โ€” export a result to hand to a contractor, a landlord or a client LEAK SCANNER Sound rarely comes through the wall. It comes through the gap. Sweep your phone along a door or window frame and the scanner reads the leak live against a baseline spot you set, so you can hear and see the moment it jumps. Mark the hot spots as you find them and they collect into a findings list. Two modes: play a tone from inside, or listen passively to whatever noise is already out there. The scanner locates leaks โ€” it doesn't score the door. THE FIRST 3 ARE FREE Your first 3 Sound Isolation Scores are free, with no account and no trial clock. After that the measurement still runs and the score unlocks with a plan. A retake spends one of your three; a run we can't stand behind, interrupted or too noisy to trust, doesn't. The app shows what you have left before you start. PLANS โ€ข Home โ€” unlimited QuietScores, the four-tone breakdown, saved rooms with history and notes, the full Leak Scanner and PDF export โ€ข Studio โ€” everything in Home, plus raw dB figures and USB reference-microphone support โ€ข Business โ€” everything in Studio, plus branded, client-ready PDF reports FOR PROFESSIONALS QuietScore Business is built for acoustic consultants, property managers, contractors and studio builders who need a number in front of a client before the expensive work starts, with their own name on the report rather than ours. Measure room by room on a single visit, save each to its own record, and export a branded PDF the same afternoon. Every report carries your logo and company name, with fields for the client, site address, project ID and anything else the job needs. Works with any Bluetooth or AirPlay speaker, on iPhone and iPad. Your measurements stay on your device. The Sound Isolation Score is a practical estimate, measured with your phone instead of lab equipment rather than certified by it. It is the number you use to decide what to fix, show what changed, and give a client an answer the same day. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

TrueDetect Device Test

Features
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TrueDetect Device Test checks the hardware of an iPhone and reports exactly what it measured. Tap Full Test and the app works through the device one function at a time: display and touch, front and rear cameras, speaker and microphone, vibration, buttons, Wi-Fi, Bluetooth, NFC, GPS, the motion sensors, the compass, the proximity sensor, charging, and the battery. Each check ends in a clear result you can read at a glance, and every card can be opened to see the underlying measurement behind it. Two things guide the whole app: REAL READINGS, NEVER GUESSES A value is shown only when the device itself reports it. Where iOS does not expose something, the app says so instead of filling the gap with an estimate. A result you cannot trust is worse than no result. A FINDING, NOT JUST A VERDICT When a check does not pass, the app states what it found - which part, and what was measured - so the reason is on the screen rather than left to memory. Any test can also be run on its own from Manual Test, which is useful when you want to re-check a single function after handling the device. The app is made by K-Device Lab for businesses that inspect used iPhones and need an honest, repeatable record of a handset's condition. It is free, contains no advertising, and offers nothing to purchase.

Screenshots

QuietScore4 screens
TrueDetect Device Test3 screens

Verdict

The call

The clearest difference is in-app purchases: TrueDetect Device Test at none against QuietScore's 6. TrueDetect Device Test also leads on update cadence (weekly vs every 3 months) and iOS requirement (15.0 vs 26.2). On price, ads and device support there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. QuietScore sells 6 in-app purchases, starting at $4.99 per month. TrueDetect Device Test asks for nothing beyond the download.

UpkeepUpdate frequency

QuietScore ships an update every 3 months, TrueDetect Device Test weekly. Both last shipped on October 24, 2026.

Scorecard3 real differences ยท 3 level
QuietScore versus TrueDetect Device Test: the parameters behind the verdict, then further details
ParameterQuietScoreTrueDetect Device Test
PriceFreeFree
Update frequencyEvery 3 monthsWeekly โ€” better
AdsNoNo
In-app purchasesYesNo โ€” better
DevicesiPhone, iPadiPhone, iPod
Requires iOS26.215.0 โ€” better
Further details โ€” not scored
Size13 MB3 MB
Age rating4+4+
DeveloperLakeborne Labs OyAMIR AKBAR

In-app purchases

6 purchases

QuietScore

Subscriptions6
  • QuietScore Home$4.991 Month
  • QuietScore Studio$9.991 Month
  • QuietScore Business$19.991 Month
Show 3 more
  • QuietScore Home$38.001 Year
  • QuietScore Studio$77.001 Year
  • QuietScore Business$149.001 Year
None

TrueDetect Device Test

No in-app purchases

Questions

Is QuietScore free?
QuietScore is free to download, with in-app purchases available.
Is TrueDetect Device Test free?
TrueDetect Device Test is free to download, with no in-app purchases.
Do QuietScore or TrueDetect Device Test have ads?
Neither QuietScore nor TrueDetect Device Test shows ads.
Which is updated more often, QuietScore or TrueDetect Device Test?
QuietScore ships an update every 3 months, and TrueDetect Device Test weekly. Most recently, QuietScore was updated on October 24, 2026 and TrueDetect Device Test on October 24, 2026.

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