# Sonance: Sound Level Meter — Decibel meter & spectrum

> Decibel meter & spectrum (iPhone/iPad app by Robert Corbin.)

- Source: https://appshunter.io/ios/app/sonance-sound-level-meter/id6782296303 (this page in markdown: same URL + `.md`)
- Developer: [Robert Corbin](https://appshunter.io/developer/1890247992)
- Category: Utilities, Music
- Price: $3.99
- Age rating: 4+
- Requires: iOS 17.0 · 53 MB
- Languages: American English
- Released: 2026-06-25
- Data updated: 2026-08-14
- User reviews in markdown: https://appshunter.io/ios/app/sonance-sound-level-meter/id6782296303/reviews.md

## What is Sonance?

Sonance turns your iPhone into a beautiful, instant sound-level meter — and makes a raw number actually mean something.

Point it at the world and watch a high-fidelity decibel gauge swing in real time, see the room's frequencies dance across a live spectrum, and get a plain-language read on whether what you're hearing is safe for your ears. No setup, no sign-up, no waiting.

No ads. No account. Nothing leaves your phone.

— A METER THAT LOOKS AS GOOD AS IT MEASURES —
• A dramatic, animated decibel dial with a smooth needle and crisp readout
• Live MIN / AVG / MAX / PEAK so you can capture a moment or watch a trend
• Six hand-tuned themes — Aurora, Inferno, Mono, Neon, Ocean, Sunset — pick your vibe

— SEE THE SOUND —
• A real-time frequency spectrum that reacts to every voice, beat, and rumble
• A scrolling spectrogram heat-map — time, frequency, and intensity in one stunning view
• A / C / Z frequency weighting, the way real sound meters work

— KNOW WHEN IT'S TOO LOUD —
• Clear hearing-safety guidance based on the NIOSH limit (85 dBA for 8 hours)
• A live "safe listening time" estimate as levels rise
• A reference ladder of everyday sounds — "≈ city traffic," "≈ rock concert" — so the numbers click

— A REFERENCE LIBRARY IN YOUR POCKET —
• Pure 1/3-octave test tones, a full 20 Hz–20 kHz sweep, and white / pink / brown noise
• Calming ambience beds — rain, traffic, café — to compare and demo
• A 1 kHz reference tone to help you calibrate against a known meter

— PRIVATE BY DESIGN —
Sonance works 100% on your device. The microphone is used only to measure sound in the moment — audio is never recorded, saved, or sent anywhere. No accounts, no tracking, no network. Ever.

Great for noisy restaurants, concerts, the gym, power tools, a baby's room, a too-loud AC, a home studio, or just satisfying curiosity about how loud the world really is.

Note: iPhone microphones aren't laboratory instruments. Sonance shows an estimated SPL and includes a calibration control so you can dial it in. Hearing-safety figures are educational, not medical advice.

Built for fast, private sound checks wherever you are.

New in 1.1: Saved-session field reports summarize total measurement time, estimated equivalent level, highest peak, projected dose, time-left estimate, and CSV export. Reports are numeric only and contain no audio.


## Version history (last 3 releases)

### 1.2 — 2026-07-30

Sharper sound-level displays, improved technical label legibility, stronger accessibility, and a repaired automated UI test suite.

### 1.1 — 2026-06-30

Sonance 1.1 upgrades saved sessions with a field report: total measured time, estimated equivalent level, highest peak, projected daily dose, time-left estimate, and copy/share CSV export. The report uses the existing educational NIOSH-based reference and keeps all saved session data on-device.

### 1.0 — 2026-06-25

No release notes.

## More apps by Robert Corbin

- [Daily Word Journey](https://appshunter.io/ios/app/daily-word-journey/id6761548266)
- [Hush Secret Text](https://appshunter.io/ios/app/hush-secret-text/id6761658175)
- [Renew Guard](https://appshunter.io/ios/app/renew-guard/id6761755447)
- [Receipt to PDF](https://appshunter.io/ios/app/receipt-to-pdf/id6761782025)
- [Route Your Pay](https://appshunter.io/ios/app/route-your-pay/id6761783719)
- [Tip Arbiter](https://appshunter.io/ios/app/tip-arbiter/id6761786879)

All apps by Robert Corbin: https://appshunter.io/developer/1890247992

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-14.*