Everything included for one fair price. One-time, no subscription, no tracking.
100% on-device. Nothing recorded or sent.
Live measurement — on your device
The honest comparison
The old way
Year 1 cost: up to $49.99
+ extra for export + weighting + full history
The dB Decibel way
Total cost: €4.99 — once.
All features. All platforms. For life.
What's inside
No dark patterns. The free tier is genuinely useful — Pro just adds the professional tools.
Everything you need for daily use
Live dB meter
Real-time SPL reading with peak hold
Reference scale
Contextual labels — Whisper to Concert
One-tap guided calibration
Simple setup, no tech knowledge needed
Min / Avg / Max
Session statistics at a glance
Rolling graph
60-second live history view
Professional tools, owned forever
A / C / Z frequency weighting
Industry-standard filters for every use case
Session logging & history
Save and revisit past measurements
CSV & share export
Take your data anywhere
Fine calibration trim
+/- offset tuning for precision work
No ads
Clean, distraction-free experience
All future Pro features
One payment, lifetime access
Reference guide
dB Decibel puts every reading in context — so you always know what the number means.
20 dB
Whisper
Near-silent
35 dB
Library
Background hum
60 dB
Conversation
Normal speech
80 dB
Busy Street
Traffic noise
110 dB
Concert
High-energy
Privacy by design
All measurement processing happens locally. Audio never leaves your phone.
No sign-up, no email, no profile. Open the app and measure.
No analytics, no usage tracking, no crash reporters phoning home.
€4.99 — one time. Every feature. No subscription. No fine print.