ML revenue forecast.
Calibrated against 77129 apps in this category.
Confidence band
±15%
High — many comparable apps with verified data
At a glance
Earns 4.41× more than the category median (189/mo).
Ranks #5,895 of 77,129 in Tools (top 7.6% by revenue).
Launched Jun 26, 2014 · last updated May 24, 2026.
What the app looks like
Live screenshots from the Play Store, captured by our snapshot worker. Tap any image to enlarge.
Decibel X - Pro Sound Meter's revenue trajectory
Forecast revenue from snapshot history. Last 2 months.
Where Decibel X - Pro Sound Meter sits in Tools
Revenue distribution of 77129 comparable apps. Decibel X - Pro Sound Meter highlighted.
Decibel X - Pro Sound Meter vs comparable apps
Revenue trajectory side-by-side. Bold = Decibel X - Pro Sound Meter, ghosted = peers.
App spec
Version
9.3.8
Last update
May 24, 2026
Launched
Jun 26, 2014
Price
Free
Monetization
Free
What Decibel X - Pro Sound Meter actually does (from store listing)
"Decibel X" is one of very few sound meter apps on the market that has highly reliable, pre-calibrated measurements and supports frequency weightings: ITU-R 468, A and C. It turns your phone device into a professional sound meter, precisely measures the sound pressure level (SPL) all around you. This extremely useful and beautiful sound meter tool will not only be an essential gadget for many uses but also bring you a lot of fun. Have you wondered how quiet is your room or how loud is a rock con…
"Decibel X" is one of very few sound meter apps on the market that has highly reliable, pre-calibrated measurements and supports frequency weightings: ITU-R 468, A and C. It turns your phone device into a professional sound meter, precisely measures the sound pressure level (SPL) all around you. This extremely useful and beautiful sound meter tool will not only be an essential gadget for many uses but also bring you a lot of fun. Have you wondered how quiet is your room or how loud is a rock concert or sport event? "Decibel X" will help you answer all of those.
WHAT MAKES "DECIBEL X" SPECIAL:
- Trusted accuracy: the app is carefully tested and calibrated for most devices. The precision is matching with real SPL devices
- Frequency weighting filters: ITU-R 468, A, B, C, Z
- Spectrum analyzer: FFT and BAR graphs to display real time FFT. Those are very useful for frequency analysis and musical tests. Real time predominant frequency is also displayed.
- Powerful, smart history data management:
+ Recording data can be saved into a list of history records for future access and analysis
+ Each record can be exported as hi-res PNG graph or CSV text via sharing services
+ Fullscreen mode to give overview the whole history of an record
- Dosimeter: NIOSH, OSHA standards
- InstaDecibel to capture your dB report overlaid on photos and easily shared via popular social networks (Facebook, Instagram, etc.).
- Beautiful, intuitive and carefully crafted UI design
OTHER FEATURES:
- Standard time weightings (Response Time): SLOW (500 milliseconds), FAST (200 milliseconds) and IMPULSE (50 milliseconds)
- Trimming calibration from -50 dB to 50 dB
- Standard measurement range from 20 dBA up to 130 dBA
- Spectrogram
- HISTO graph for plotted history of the recorded values
- WAVE graph with 2 display modes: Rolling & Buffer
- Real time scale level chart
- Display Current, Average/Leq, and Max values with both nice and clear digital and analog layouts
- Quick reference text to help you compare with real-life examples
- "Keep Device Stay Awake" option for long duration recording
- Reset and clear current recording at any time
- Pause/Resume at any time
NOTES:
- Please do not expect a quiet room reading will be 0 dBA. The range 30 dBA - 130 dBA is the standard usable range and an average quiet room will be about 30 dBA.
- Although most devices are pre-calibrated, custom calibration is suggested for serious purposes requiring higher precision and accuracy. To calibrate, you will need a real external device or calibrated sound meter as a reference, then adjust the trimming value until the reading matches with the reference.
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Comparable Android apps
The five apps in Tools with the closest revenue to Decibel X - Pro Sound Meter. Click any to see its detail page.
Each forecast combines App Store rating, ratings count, monetisation model, pricing tier, IAP signals and ad-supported flag.
The base estimate is then multiplied by a per-category scaling factor learned from apps with founder-verified MRR.
Every number on this page comes from public APIs and bumetric's own snapshot history.
Full methodology covers input variables, accuracy bands per category and how we treat apps without comparable anchors.
See also the live data on Decibel X - Pro Sound Meter's tracker page for current rating, reviews and snapshot timeline.
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