Android App · No Subscription

Know exactly
how loud
it really is.

dBShield is a professional sound level meter with OSHA compliance tools, session logging, and a full spectrum analyzer. One-time $4.99 — no ads, no subscription, no account.

Download Free — Google Play Free tier available · Upgrade anytime
dBShield app screenshot
One-time price
$4.99
OSHA Compliant
No subscription, ever
Zero ads. Free or paid.
OSHA TWA & NIOSH dosimeter
FFT spectrum analyzer
Free tier included
Why dBShield

Other sound meters charge monthly
or hide features behind ads. We don't.

The competition either runs ads in a paid app or locks professional tools behind a subscription. dBShield launches with zero ads in every tier — free or paid — and charges once for everything.

No ads. Not even in the free tier.
Most competitors run ad tracking even in their paid apps. dBShield has zero ad permissions — free or premium — period.
Pay $4.99 once. Own it forever.
No monthly fee, no annual renewal. One payment unlocks OSHA tools, unlimited session logging, spectrum analyzer, and every future update.
Built for field workers & compliance.
OSHA TWA, NIOSH dosimeter, dose percentage, and location-tagged session logs — tools the competition doesn't offer at any price.
Features

Professional tools.
Simple enough for anyone.

Whether you're checking noise levels at a job site or monitoring your environment at home, dBShield has the right tool for the job.

Free tier

Start measuring immediately — no account needed.

The free tier gives you a live dB reading, real-time chart, min/avg/max display, noise reference labels, play/pause/reset controls, measuring timer, calibration offset, and screen-on lock. One saved session so you can try the full logging experience before upgrading.

Live dB readingFree
Real-time chartFree
Min / Avg / MaxFree
Noise reference labelsFree
1 saved sessionFree
Unlimited sessionsPro — $4.99
Compliance

OSHA TWA & NIOSH dosimeter

Track your time-weighted average exposure and dose percentage against OSHA and NIOSH standards. Know exactly when you're approaching dangerous levels before it's too late.

Analysis

FFT spectrum analyzer

See the full frequency breakdown of any sound. A/B/C/Z frequency weighting and slow/fast/impulse time weighting give you the precision a professional measurement demands.

Logging

Session history with location labels

Log unlimited sessions with custom location labels. Export as CSV or shareable text. Every session is timestamped and stored locally — no cloud, no account required.

Alerts

dB alert threshold with vibration

Set a custom dB threshold. When sound exceeds it, your phone vibrates instantly. Useful for monitoring environments when you can't watch the screen.

How we stack up

dBShield vs. The Other Guys

Most sound meter apps run ads even in paid versions. We don't.

Feature The other guysTypical Sound Meter App Our appdBShield
Ads in free tier
Yes
Never
Ads in paid version
Some do
Never
Monthly subscription
Some charge
None. Ever.
One-time price
No
$4.99 once
OSHA TWA
Rarely
Yes
NIOSH dosimeter
No
Yes
FFT spectrum analyzer
Some
Yes
Session logging
Basic
Unlimited
Location labels on sessions
No
Yes
CSV + text export
Rarely
Yes
dB alert + vibration
No
Yes
Ad tracking permissions
Yes
Zero
No account required
Usually needed
Never
iPhone version
Yes
Soon
Pricing

Try free. Pay once.

The free tier is genuinely useful. Upgrade once when you need the professional tools.

Free tier included — no credit card
$4.99
one-time · pro unlock · no renewal
Unlimited session logging with location labels
OSHA TWA + NIOSH dosimeter + dose %
FFT spectrum analyzer
A/B/C/Z frequency weighting
dB alert threshold with vibration
PNG + CSV export
All future updates included
Download Free — Google Play
Free tier includes 1 saved session so you can try the full experience before upgrading. · iPhone version coming soon.
dBShield — Sound Level Meter

Stop guessing
how loud it actually is.

dBShield gives you a professional sound meter in your pocket — no subscription, no ads, no account. Try the free tier today.

Download dBShield — Free
Available on Android · Free tier always available · $4.99 one-time for pro · iPhone version coming soon