Sound Meter: dB SPL Veltora
Sound level meter with dBA
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
A sound level meter for iPhone that is honest about what it does not know.
Point your iPhone at a sound and it tells you how loud it is, in decibels, using the weightings and time constants a real sound level meter uses. Record a session and you get the statistics that matter afterwards — the energy average, the peak, the quietest moment — plus a CSV or PDF you can send to someone.
EVERY PRO METRIC IS FREE
Not a trial, not a teaser. The full measurement feature set is in the free version, and paying only removes the advertising.
• LAeq — energy-average level
• LCpeak — instantaneous peak
• LAFmax and LASmin
• A, C and Z frequency weighting
• Fast and Slow time weighting
• FFT spectrum with dominant frequency
• Octave and 1/3-octave band analysis
• Session recording, history and notes
• CSV and PDF export
MEASURE THE WAY YOU NEED TO
Keep measuring with the screen locked. Watch the live trend. See what the noise compares to in plain words. Set a warning level and feel it rather than watch for it.
THE HONEST PART
This is not a certified sound level meter and it does not pretend to be. Readings are labelled Approximate in the app and in every export, because the absolute level rests on a provisional constant rather than a calibration measured against a reference instrument. Use certified equipment wherever a regulation requires it.
When there is no measurable signal the reading is "--", not "0" — a covered microphone is not a quiet room. When measurement pauses, the number disappears rather than freezing at its last value. Connect a Bluetooth or USB-C microphone and the app says so, and refuses to apply a correction that was never measured for it.
YOUR SOUND STAYS ON YOUR PHONE
Audio and measurements are processed on your device without an account or upload to our servers. Microphone access is needed for measurement. The free version uses Google AdMob, which processes device and advertising information but does not receive your audio, measurements or recorded sessions. Advertising privacy choices and Apple tracking permission are handled separately.
Requires iOS 17 or later.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Bug fixes.
The developer, VELTORA LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Identifiers
Data Linked to You
The following data may be collected and linked to your identity:
- Location
- Identifiers
- Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- VELTORA LLC
- Size
- 5 MB
- Category
- Utilities
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English and German
- Age Rating
9+
- 9+
- This app is rated 9+ with content restrictions.
Some content may be rated higher, and may therefore be restricted and managed by the developer through in-app controls. - In-App Controls
Age Assurance
Contains
Advertising
- In-App Purchases
Yes
- Premium Annual $1.99
- Premium Lifetime $4.99
- Copyright
- © 2026 VELTORA LLC