Your Key vs Noise Level Meter
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Your Key
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Noise Level Meter
This app transforms your iPhone into a sophisticated sound level meter and frequency analyzer. It offers instant decibel readings, detailed spectrum analysis, and the ability to save and export measurement sessions. Designed for various everyday uses, it provides clear and beautiful sound measurement.
- Live decibel meter
- FFT spectrum analyzer
- Octave-band visualization
- Record measurement sessions
- Export PDF reports
- Calibration offset
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SoundScope turns your iPhone into a polished sound level meter and frequency analyzer—built for quick, clear measurements with a premium dark interface. MEASURE SOUND INSTANTLY • Live decibel meter with a responsive circular gauge • A, C, and Z frequency weightings • Peak hold and real-time level readout • Calibration offset for relative accuracy SEE THE FREQUENCY SPECTRUM • Live FFT spectrum analyzer • Octave-band visualization • Dominant frequency detection SAVE AND REVIEW SESSIONS • Record measurement sessions to History • Session detail charts for min, max, and average levels • Optional location tags for sessions • Export PDF reports and share with the system share sheet DESIGNED FOR EVERYDAY USE Whether you're checking apartment noise, dialing in a home theater, practicing music, or just curious about the sound around you—SoundScope makes measurement simple and beautiful. Note: SoundScope is a consumer sound analysis tool and is not a substitute for a calibrated laboratory SPL meter. Privacy Policy: https://storepal.app/soundscope/privacy Terms of Use: https://storepal.app/soundscope/terms
Screenshots
Verdict
The clearest difference is iOS requirement: Your Key at 11.0 against Noise Level Meter's 18.0. 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Your Key | Noise Level Meter |
|---|---|---|
| Price | Free | Free |
| Rating | — | 3.8 (4 ratings) — better |
| Number of ratings | — | 4 — better |
| Update frequency | — | Weekly |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 11.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 17 MB | 18 MB |
| Age rating | 4+ | 4+ |
| Developer | Watchman Door S.L. | Kostiantyn Liubevych |
In-app purchases
Your Key
No in-app purchases
Noise Level Meter
No in-app purchases









