decibel meter
The signal here is competition saturation, not search demand. You decide; we lay out the evidence.
Demand read
two models, independent (a read, not a measurement)
Two AI reads (Opus and Codex). A judgment, not measured demand. When they split, that is how uncertain it is.
How crowded is it
saturation from top-app review concentration
A dominant app with 160,365 reviews owns this space. Avoid a head-on fight, find a narrow gap.
Who is already here
top competitor apps (by search relevance)
| App | Rating | Reviews |
|---|---|---|
| Decibel X:dB Sound Level MeterSkyPaw Co., Limited | 4.65 | 160,365 |
| Decibel Meter Sound DetectorAshraf Thoppukadavil | 4.69 | 54,134 |
| NIOSH Sound Level MeterEA LAB d.o.o. | 4.67 | 16,580 |
| Sound Meter (Decibel)Unicom TOV | 4.52 | 3,070 |
| Decibel : dB sound level meterVlad Polyanskiy | 4.64 | 36,108 |
| Decibel Meter UltraUltrafine, Lda | 4.64 | 2,426 |
| Decibel Meter Master燕辉 冯 | 4.61 | 3,164 |
| Decibel Meter: Sound dBOV MEDIA | 4.28 | 298 |
What reviews complain about
from 0 competitor reviews
Can a solo dev build it
difficulty and risk, broken down
Buildable solo in a month. The tech is simple: AVAudioEngine reads input levels and maps to dB. The hard part is differentiation, not code. Accuracy claims need hedging since iPhone mics are not calibrated instruments.
If you build it
a one-page brief (a starting point, not the answer)
A decibel meter built for a specific job, like workplace noise compliance or home studio monitoring, not a generic dB reader.
People with a concrete reason to measure noise: apartment renters dealing with loud neighbors, home studio owners, small business owners checking workplace noise.
The market has 25+ generic decibel meters, all free, mostly 4.5+ rated. A tenth generic meter gets nothing. Only a focused use case gives a reason to switch.
- ·Generic feature parity with Decibel X
- ·Paid upfront pricing (every top competitor is free)
- ·Claims of lab-grade accuracy you cannot verify on uncalibrated phone mics
Meter screen with live reading, min/max/avg, and a log the user can export. Nothing else.
Free with ads at start, one-time unlock to remove ads and add unlimited logging/export. Subscription is a hard sell in this category.
Honest warning
the biggest trap of this opportunity
You cannot win as another generic free dB meter; only a named use case (noise complaints, workplace compliance, studio monitoring) gives a solo dev any entry point.