Comparison

Decibel Meter ! vs L22 Spectro

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Decibel Meter !

This app measures and analyzes sound levels in real-time, providing clear decibel readings and tracking noise changes. It offers advanced features like dosimeter functions, visual graphs, and the ability to capture photos and videos with dB overlays. Save and export your sound data for comprehensive insights into your environment.

Highlights
  • Real-time decibel readings
  • Advanced dosimeter functions
  • Multiple sound graphs
  • Photo & video capture with dB overlay
  • Recording history and export
  • Frequency analysis
Features
Read full description

Decibel Meter helps you measure and monitor sound levels in real time. With clear readings and smooth performance, it makes sound measurement simple and accessible for everyday use. Track noise changes, understand sound exposure, and save recordings with an intuitive design built for clarity and ease. Whether you need quick checks or detailed data, this noise meter provides reliable sound insights at a glance. Features of Decibel Meter : 1. Real-Time Sound Level Meter - Live decibel (dB) readings using a responsive decibel meter - Smooth updates for quick checks or continuous monitoring 2. Advanced Dosimeter - Time-Weighted Average (TWA) and instantaneous level - Projected dose for long-term sound exposure tracking 3. Multiple Sound Graphs - Clear visual graphs for better understanding - Track sound changes over time with this sound level meter 4. Photo & Video Capture - Capture photos and videos within the app - Add dB meter overlays for visual reference 5. Recording History & Export - Save and review sound recordings - Export data for reports or further analysis Decibel Meter combines the functionality of sound meter into one simple and reliable tool. From real-time measurements to exposure tracking and visual records, everything is organized to help you stay informed about your sound environment. It also works as a frequency analyzer, giving you deeper insight into the sounds around you. Explore decibel meter today and monitor your surroundings with a smart and easy-to-use sound level meter. Disclaimer: - This Noise meter application is intended for informational and educational purposes only. Sound measurements may vary depending on device hardware and environmental conditions and should not be used as a certified or professional measurement instrument. - This app offers paid features that require an additional purchase for full access. To enjoy all the content and functionality, a subscription is required. Privacy Policy: https://vasundharaapps.com/decibel-sound-level-meter-ios/privacy-policy Terms of Use: https://vasundharaapps.com/decibel-sound-level-meter-ios/terms-of-service

About

L22 Spectro

Features
Read full description

L22 Spectro is a professional application for controlling and operating the L22 spectrometer. The app communicates with the spectrometer over a local Wi-Fi connection and allows users to perform spectral measurements, manage calibration data, and view measurement results directly on an iPhone or iPad. L22 Spectro is intended for professional users working with lighting measurement, spectral analysis, colorimetric verification, and quality control of lighting systems. Main features: - Communication with the L22 spectrometer over local Wi-Fi - Spectral measurement control - Calibration data handling - Display of spectral and colorimetric measurement results - Professional workflow for lighting and measurement applications Full measurement functionality requires an external L22 spectrometer device connected to the same local Wi-Fi network.

Screenshots

Decibel Meter !4 screens
L22 Spectro4 screens

Verdict

The call

The clearest difference is in-app purchases: L22 Spectro at none against Decibel Meter !'s 4. L22 Spectro also leads on ads (none vs shown) and iOS requirement (13.0 vs 15.6). Decibel Meter !'s advantage is update cadence (fortnightly vs monthly). On price and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Decibel Meter ! sells 4 in-app purchases, starting at $7.99 per 7 days. L22 Spectro asks for nothing beyond the download.

UpkeepUpdate frequency

Decibel Meter ! ships an update fortnightly, L22 Spectro monthly. The most recent releases landed on October 31, 2026 and October 14, 2026 respectively.

Scorecard4 real differences · 6 level
Decibel Meter ! versus L22 Spectro: the parameters behind the verdict, then further details
ParameterDecibel Meter !L22 Spectro
PriceFreeFree
Rating4.3 (20 ratings) — better—
Positive reviews50.0% of reviews—
Number of ratings20 — better—
Update frequencyFortnightly — betterMonthly
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.613.0 — better
Further details — not scored
Size104 MB19 MB
Age rating4+4+
DeveloperPravin GondaliyaJacek Krawczykowski

In-app purchases

4 purchases

Decibel Meter !

Subscriptions3
  • 1-Week Premium Access3 Days trial$7.997 Days
  • 1-Month Premium Access$14.991 Month
  • 1-Year Premium Access$39.991 Year
One-time1
  • Lifetime Premium Access$69.99
None

L22 Spectro

No in-app purchases

Questions

Is Decibel Meter ! free?
Decibel Meter ! is free to download, with in-app purchases available.
Is L22 Spectro free?
L22 Spectro is free to download, with no in-app purchases.
Do Decibel Meter ! or L22 Spectro have ads?
Decibel Meter ! shows ads; L22 Spectro does not.
Which is updated more often, Decibel Meter ! or L22 Spectro?
Decibel Meter ! ships an update fortnightly, and L22 Spectro monthly. Most recently, Decibel Meter ! was updated on October 31, 2026 and L22 Spectro on October 14, 2026.

Other comparisons