Comparison

DeciMate SPL vs Sound Level Meter

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

Head to head
About

DeciMate SPL

Features
Read full description

DeciMate SPL helps you monitor sound levels during rehearsals, DJ sets, small events, venue checks, and live-sound work. It turns your iPhone into a practical SPL monitoring companion with a clean real-time meter, calibration tools, threshold alerts, session history, export options, and expressive visual feedback that makes level changes easy to understand at a glance. Use DeciMate SPL to keep an eye on loudness trends, spot peaks, document sessions, and share live readings across your local network for dashboards and creative workflows. Features: - Live approximate SPL monitoring - Clear circular input meter with threshold-based visual feedback - Manual calibration offset and quick “Match Reference” calibration - Adjustable warning, critical, and peak thresholds - Threshold presets for common monitoring situations - Fast and slow response modes - Session history graph - Detailed session export with live-monitoring values - Companion animation with fullscreen focus mode - Screen-awake fullscreen monitoring for visual use during sessions - DeciMate Live Link for local network JSON streaming - Optional OSC streaming for dashboards, tools, and live-production workflows Important: DeciMate SPL uses the device microphone for practical monitoring. It is not a certified Class 1 or Class 2 sound level meter and should not be used as the sole tool for legal, workplace-safety, or compliance measurements.

About

Sound Level Meter

Features
Read full description

Sono is a clean, easy-to-read sound level meter that turns your phone into a real-time decibel meter. Measure how loud anything is, right now, in dB(A). No sign-up, no login, fully offline. Checking a noisy restaurant, a concert, your AC or PC fans, road and traffic noise, a snoring partner, a baby's room, a workplace or machine shop, or a neighbour's music? Sono shows the sound pressure level (SPL) instantly with a clear live reading, an animated dial, and a scrolling graph. Why Sono • Fully offline. No account, no login. Your audio is never recorded or stored and never leaves your device. • Live dB(A), min / average / max, real-time graph, history and calibration, included. • Honest readings. A per-device calibration offset lets you trim the reading to match a reference. Features • Live decibel meter with a large, easy-to-read dB number • A, C and Z frequency weighting: dB(A), dB(C), dB(Z) • Min, average and max for every session • Real-time scrolling graph, from 30 seconds up to 30 minutes • Peak hold marker on the dial • Session timer with pause and resume • Calibration offset to match a reference level • Three gauge styles: circular, semicircular, and analog needle • Reference guide: how loud common sounds are, from a whisper to a jet • Save measurements with labels and notes, then browse your history • Add timestamped marks while measuring • Dark mode that remembers your choice, plus optional haptics • Lightweight and fast, opens straight to a live reading How Loud Is It? Quiet library ~30–40 dB · normal conversation ~60 dB · busy traffic ~70–80 dB · lawn mower ~90 dB · nightclub ~100 dB · rock concert ~110 dB. Sono labels the live reading against everyday sources so the numbers actually mean something. Great For • Checking whether a venue, restaurant or workplace is too loud • Settling neighbour noise disputes • Calibrating speakers, home theatre and audio gear • Measuring appliances, fans, engines and machinery • Anyone curious how loud their world really is A Note on Accuracy: Phone microphones are tuned for voice and can clip at very high volumes, so readings are approximate. Sono is a reference tool and is not a replacement for a certified sound level meter (SLM). Use the calibration offset to align Sono with a known reference for more reliable results. Sono is not a medical device and does not diagnose, treat, cure, or prevent any medical condition. Not a certified sound level meter, for reference only. Sono: the simple, offline decibel meter.

Screenshots

DeciMate SPL4 screens
Sound Level Meter4 screens

Verdict

The call

The clearest difference is ads: DeciMate SPL at none against Sound Level Meter's shown. On price, in-app purchases, device support and iOS requirement 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. Neither carries in-app purchases, so what you see is what you pay.

Scorecard1 real difference · 5 level
DeciMate SPL versus Sound Level Meter: the parameters behind the verdict, then further details
ParameterDeciMate SPLSound Level Meter
PriceFreeFree
Update frequency—Every 11 days
AdsNo — betterYes
In-app purchasesNoNo
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.017.0
Further details — not scored
Size3 MB8 MB
Age rating4+17+
DeveloperDavid TorresHritik Arthur

In-app purchases

None

DeciMate SPL

No in-app purchases

None

Sound Level Meter

No in-app purchases

Questions

Is DeciMate SPL free?
DeciMate SPL is free to download, with no in-app purchases.
Is Sound Level Meter free?
Sound Level Meter is free to download, with no in-app purchases.
Do DeciMate SPL or Sound Level Meter have ads?
Sound Level Meter shows ads; DeciMate SPL does not.

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