Comparison

Decibel Meter Sound Detector vs Behavior Observation

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

Head to head
About

Decibel Meter Sound Detector

Monitor your surroundings with this decibel meter app. It measures sound levels in real-time, providing clear visual analysis and advanced filtering options. Easily share your readings for documentation or further analysis.

Highlights
  • Real-time decibel (dB) readings
  • Frequency weighting (A, B, C, Z)
  • Share measurements via various apps
  • 1/3 octave band frequency analysis
  • Display current, average, and max values
  • Advanced filter range settings
Features
Read full description

Track Environmental Noise with Ease Monitor your surroundings with this professional-grade decibel meter app, featuring clear visual noise analysis. The Decibel Meter app uses your device’s built-in microphone to measure sound levels in decibels (dB), offering real-time audio frequency (AF) and dB readings. It supports advanced filtering for frequency and dB ranges. You can easily share your measurements via Messages, Email, WhatsApp, Notes, and more for further analysis or documentation. Note: The app’s accuracy is limited by your device’s microphone capabilities and is not intended to replace professional-grade sound meters. The audible frequency range is from 20 Hz to 20,000 Hz. For additional information and comments, please contact info@ashiers.com. FEATURES: - Accurate measurements - Frequency Weighting: A, B, C, Z - Share readings via Email, Message, Notes, WhatsApp, and more - 1/3 octave band frequency analysis - 20 to 130 dB - Audible frequency range: 20 Hz to 20,000 Hz - Intuitive design - Advanced filter range with time-in/time-out settings - Display current, average, and maximum values - Display peak frequency

About

Behavior Observation

This tool helps educators and clinicians systematically track student behavior in school settings. It allows for detailed data capture and generates professional reports to inform interventions and assessments. The app is designed for privacy and offline use, with no subscriptions or ads.

Highlights
  • Momentary time sampling and partial-interval recording
  • Customizable session duration and intervals
  • Track engaged and non-engaged behaviors
  • Built-in peer comparison intervals
  • Teacher-Directed Instruction (TDI) tracking
  • Export PDF, CSV, and HTML reports
  • Offline functionality
Features
Read full description

Transform classroom behavior tracking with BOSS — the professional observation tool trusted by educators and clinicians nationwide. Capture systematic behavior data in minutes and turn it into clean, defensible reports that drive meaningful interventions. Built for school psychologists, ABA professionals, and special education teams conducting functional behavior assessments (FBA), IEP support, and progress monitoring. SYSTEMATIC OBSERVATION, DONE RIGHT • Momentary time sampling and partial-interval recording, the way the BOSS protocol intends • Customizable session duration and observation intervals • Track Engaged (Active / Passive) and Non-Engaged (Motor / Verbal / Passive) behaviors • Built-in peer comparison intervals for classroom-referenced context • Teacher-Directed Instruction (TDI) tracking — configurable per observation • Virtual observation mode: record camera and microphone status in remote sessions • Haptic interval cues keep your eyes on the student, not on a timer CLINICAL-GRADE CHARTS AND REPORTS — REDESIGNED • Every chart now shows value labels on every bar: read exact percentages at a glance • Color-vision-deficiency-safe palette that stays legible in print and on screen • Export polished PDF reports, spreadsheet-ready CSV, and shareable HTML • Charts render identically in the app and in your exports — what you see is what you file PRIVATE BY DESIGN • Works fully offline — sessions, data, and reports live on your device • Nothing is uploaded to any server; data leaves the app only when you choose to export it • Dark mode support throughout ONE-TIME PURCHASE • No subscriptions, no accounts, no ads

Screenshots

Decibel Meter Sound Detector4 screens
Behavior Observation4 screens

Verdict

The call

The clearest difference is price: Decibel Meter Sound Detector at Free against Behavior Observation's $59.99. Decibel Meter Sound Detector also leads on review sentiment (79% vs 44%) and ratings volume (56K vs 89). Behavior Observation's advantage is in-app purchases (none vs 6) and chart position (#192 vs unranked). On rating, ads 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

Decibel Meter Sound Detector is free to download; Behavior Observation costs $59.99 up front. Decibel Meter Sound Detector sells 6 one-off in-app purchases. Behavior Observation asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.7 for Decibel Meter Sound Detector against 4.6 for Behavior Observation. That said, the two scores are not equally well evidenced: Decibel Meter Sound Detector has 56K ratings behind it against 89, so its average is the more settled of the two. Written reviews are what separate them: 79% of Decibel Meter Sound Detector's written reviews are positive against 44% of Behavior Observation's.

UpkeepUpdate frequency

Decibel Meter Sound Detector ships an update every 5 weeks, Behavior Observation every 2 months. The most recent releases landed on November 9, 2026 and November 3, 2026 respectively.

Scorecard8 real differences · 3 level
Decibel Meter Sound Detector versus Behavior Observation: the parameters behind the verdict, then further details
ParameterDecibel Meter Sound DetectorBehavior Observation
PriceFree — better$59.99
Rating4.7 (56K ratings) — better4.6 (89 ratings)
Positive reviews78.7% of reviews — better44.4% of reviews
Number of ratings56K — better89
Update frequencyEvery 5 weeks — betterEvery 2 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
Best chart rank—#192 — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS14.0 — better16.4
Further details — not scored
Size20 MB57 MB
Age rating4+4+
DeveloperAshraf ThoppukadavilAllen Eubank

Customer experience

Decibel Meter Sound Detector

All ratings54,030 ratings
Positive93.2%
Neutral3.7%
Negative3.1%
Written reviews427 reviews
Positive78.7%
Neutral4.4%
Negative16.9%

Behavior Observation

All ratings89 ratings
Positive89.9%
Neutral1.1%
Negative9.0%
Written reviews9 reviews
Positive44.4%
Neutral0.0%
Negative55.6%

Bugs and requests

Decibel Meter Sound Detector

Reported bugs

4 issues
  • Analyze feature is broken
  • Analyze feature has backwards time axis
  • Repeatedly prompts to paste from clipboard
  • Freezes after a few seconds of use

Requested features

7 requests
  • Ability to name or add notes to recordings
  • Option to specify microphone to use
  • Ability to stop and start new recordings without closing app
  • Landscape mode
  • Calibration against professional equipment
Show 2 more
  • Audible alarm for reaching set decibel level
  • Display full date and time on recordings

Behavior Observation

Not enough reviews yet to summarise bugs or requests.

In-app purchases

6 purchases

Decibel Meter Sound Detector

One-time6
  • Decibel Meter$1.99
  • Decibel Meter Premium$4.99
  • Decibel Meter$4.99
Show 3 more
  • Decibel Meter$9.99
  • Decibel Meter$19.99
  • Decibel Meter$29.99
None

Behavior Observation

No in-app purchases

Questions

Is Decibel Meter Sound Detector free?
Decibel Meter Sound Detector is free to download, with in-app purchases available.
Is Behavior Observation free?
Behavior Observation costs $59.99, with no in-app purchases.
Which has better reviews, Decibel Meter Sound Detector or Behavior Observation?
Decibel Meter Sound Detector is rated higher. Decibel Meter Sound Detector averages 4.7 out of 5 from 56K ratings, while Behavior Observation averages 4.6 from 89 ratings.
Do Decibel Meter Sound Detector or Behavior Observation have ads?
Neither Decibel Meter Sound Detector nor Behavior Observation shows ads.
Which is updated more often, Decibel Meter Sound Detector or Behavior Observation?
Decibel Meter Sound Detector ships an update every 5 weeks, and Behavior Observation every 2 months. Most recently, Decibel Meter Sound Detector was updated on November 9, 2026 and Behavior Observation on November 3, 2026.

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