SonoMeter vs IDX
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SonoMeter
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Measure noise in decibels, understand it and keep a record, straight from your iPhone. SonoMeter turns your iPhone into a sound level meter: real-time dB readings with A, C or Z weighting, a clear risk scale, and the tools to document noise from neighbors, traffic, work or concerts. MEASURE • Real-time sound level in dB(A), dB(C) or dB(Z) • LAeq, Max and measurement time at a glance • Fast, Slow and Impulse response • Four views: real-time chart, 1/3-octave spectrum, needle gauge and a fun meter • Decibel scale with everyday examples and safe daily exposure times ANALYZE • Tap the chart for a live analysis: level distribution, L10, L50 and L90 • Level over time, noise dose (NIOSH, OSHA) and average spectrum with Premium DOCUMENT • Save sessions with timeline, location and notes • Export a multi-page PDF report • Record videos with the decibels on screen, including LAeq, duration and place • Noise alerts above a threshold, with a log of every exceedance • Continuous listening keeps measuring with the screen locked SLEEP • White, pink or brown noise with a sleep timer and lock-screen controls ALSO • Home Screen widget and Live Activity • Available in English, French, German, Spanish, Italian, Japanese and Chinese • Your measurements stay on your iPhone ABOUT ACCURACY iPhone microphones differ from one model to another. SonoMeter applies a calibration for each iPhone model and lets you fine-tune it against a reference sound level meter. Readings are indicative and do not replace a certified class 1 or class 2 sound level meter for legal measurements. PREMIUM Some features require SonoMeter Premium, available as a one-time purchase or as a subscription. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. You can manage or cancel them in your Apple ID settings. Terms of Use: https://fabulastudio.net/sonometre/cgu Privacy Policy: https://fabulastudio.net/sonometre/confidentialite
IDX
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Gestiona tus llaves. Asociación, envío, recepción y petición
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Verdict
The clearest difference is in-app purchases: IDX at none against SonoMeter's 4. IDX also leads on iOS requirement (14.0 vs 16). On price, ads 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. SonoMeter sells 4 in-app purchases, starting at $1.99 per 7 days. IDX asks for nothing beyond the download.
| Parameter | SonoMeter | IDX |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 8 months | — |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 16 | 14.0 — better |
| Further details — not scored | ||
| Size | 35 MB | 24 MB |
| Age rating | 4+ | 4+ |
| Developer | Raphael Goupille | White Vega Logistic SL |
In-app purchases
SonoMeter
- Weekly Subscription$1.997 Days
- Monthly subscription$5.991 Month
- Annual subscription$24.991 Year
- Premium Lifetime$6.99
IDX
No in-app purchases









