Comparison

Decibel Meter vs CodeBrew

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

Head to head
About

Decibel Meter

Measure environmental noise levels and display decibel values in various formats. This smart sound meter app features a tidy graphic design and provides real-time noise detection using your mobile microphone. It offers clear visualizations of sound levels and includes helpful information about decibel measurements.

Highlights
  • Measures environmental noise decibel values
  • Displays dB values in various forms
  • Tidy graphic design with high frame rate
  • Uses mobile microphone for ambient noise measurement
  • Shows current, min, average, and max decibel values
  • Displays decibel change chart
  • Auto decibel value calibration
Features
Read full description

A sound level meter that uses the microphone your iPhone or iPad already has. Free to download. FREE • Live dB with a gauge, a 60-second chart, a held peak and MIN / AVG (LAeq) / MAX while you record. • Frequency weighting A, C or Z and Fast or Slow response, like a hand-held meter. • Noise dose mode: NIOSH or OSHA dose, TWA, projected 8-hour dose and time left, always on the A scale. • Recordings saved to History with notes, tags, place and search. • Noise alert at 85 dB, a table of everyday sounds and a hearing-safety guide. • PDF report in your language, CSV, image card and text summary. NEIGHBOUR AND WORKPLACE NOISE LOGS Record a session, add a note and the place, then export a PDF with date, duration, weighting, minimum, average, maximum, time above 85 dB and the level chart. It is a personal record, not legal evidence. PREMIUM Weekly, monthly, yearly or a one-time Lifetime purchase. Removes ads and adds a year of statistics, session comparison, the noise map, longer video with dB overlay, a custom alert threshold, background monitoring and extra themes. Free users can watch an optional ad to unlock a single export. HONEST ABOUT THE LIMITS A phone microphone is made for voice, differs between models and squashes very loud sound, so the loudest readings come out low. The app adds a built-in correction; calibrate against a reference meter for better numbers. It is not a certified Class 1 or Class 2 meter, a dosimeter or a hearing test. PRIVACY No account. Sound is analysed in memory and not stored; the Video tab records audio only inside videos you choose to record. The free version shows Google ads and may ask for tracking permission; location is used only to tag a recording, if you allow it. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

CodeBrew

This mobile application provides a full Java Integrated Development Environment (IDE) for iOS devices. It features intelligent code completion, live issue highlighting, and includes the Java 21 JDK for offline use. Users can also explore game development with a custom graphics framework and learn from example projects.

Highlights
  • Java 21 JDK included
  • Offline coding support
  • Intelligent code completion
  • Live issue highlighting
  • Custom graphics framework for games
  • Example projects library
Features
Read full description

Introducing CodeBrew: Your Java IDE for iPad & iPhone! Unleash the power of Java coding on your iPhone or iPad with CodeBrew - the ultimate Java Integrated Development Environment designed for developers on the go. Dive into the world of seamless coding, whether you're a seasoned pro or just starting your programming journey. What sets CodeBrew apart? CodeBrew is not just an IDE; it's your complete coding sanctuary on your iPad & iPhone. The powerful code editor comes equipped with intelligent code completions and live issue highlighting, ensuring your code is not just written but crafted to perfection. Java 21 JDK On-The-Go! CodeBrew comes bundled with OpenJ9 Java 21 JDK, running entirely on your iPad or iPhone - no internet connection required. Empower your coding journey without limitations, anytime, anywhere. Craft Simple Games with Ease! Unleash your creativity! CodeBrew boasts a custom graphics framework that simplifies game development. Whether you're building the next viral sensation or just tinkering for fun, CodeBrew makes coding games a breeze. Explore with Example Projects! Not sure where to start? CodeBrew includes a library of example projects to guide you. Learn from real-world scenarios, kickstart your projects, and elevate your coding prowess. Who is CodeBrew for? CodeBrew is tailor-made for developers seeking a powerful, portable Java 17 IDE. Whether you're a student learning the ropes, a professional crafting intricate solutions, or a hobbyist exploring the world of coding, CodeBrew is your ideal companion. Embark on a coding adventure like never before with CodeBrew. Download now and revolutionize your Java development experience on your iPad! Java is a registered trademark of Oracle and/or its affiliates The Terms of Service apply: https://astrobeats.net/tos.html

Screenshots

Decibel Meter4 screens
CodeBrew4 screens

Verdict

The call

The clearest difference is review sentiment: CodeBrew at 65% against Decibel Meter's 0%. CodeBrew also leads on ads (none vs shown) and monetization model (free vs free with in-app purchases). Decibel Meter's advantage is rating (4.8 vs 3.7). On price, ratings volume, update cadence and in-app purchases 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 $0.99 per 7 days and CodeBrew sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Decibel Meter holds the better App Store score, 4.8 against 3.7. Both are backed by a comparable volume of ratings — 4 and 10 respectively. Written reviews complicate that: 0% of Decibel Meter's written reviews are positive against 65% of CodeBrew's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Decibel Meter ships an update every 2 months, CodeBrew every 3 months. The most recent releases landed on October 29, 2026 and October 25, 2026 respectively.

Scorecard5 real differences · 5 level
Decibel Meter versus CodeBrew: the parameters behind the verdict, then further details
ParameterDecibel MeterCodeBrew
PriceFreeFree
Rating4.8 (4 ratings) — better3.7 (10 ratings)
Positive reviews0.0% of reviews64.7% of reviews — better
Number of ratings410 — better
Update frequencyEvery 2 months — betterEvery 3 months
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.015.0 — better
Further details — not scored
Size9 MB379 MB
Age rating4+4+
DeveloperGrima HdezJulius Naeumann

Customer experience

Decibel Meter

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

CodeBrew

All ratings10 ratings
Positive50.0%
Neutral30.0%
Negative20.0%
Written reviews17 reviews
Positive64.7%
Neutral23.5%
Negative11.8%

In-app purchases

4 purchases

Decibel Meter

Subscriptions3
  • Decibel Sound Meter Pro Weekly$0.997 Days
  • Pro Monthly$1.991 Month
  • Decibel Sound Meter Pro Yearly$4.991 Year
One-time1
  • Decibel Pro Lifetime$9.99
1 purchases

CodeBrew

One-time1
  • CodeBrew Pro$17.99

Questions

Is Decibel Meter free?
Decibel Meter is free to download, with in-app purchases available.
Is CodeBrew free?
CodeBrew is free to download, with in-app purchases available.
Which has better reviews, Decibel Meter or CodeBrew?
Decibel Meter is rated higher. Decibel Meter averages 4.8 out of 5 from 4 ratings, while CodeBrew averages 3.7 from 10 ratings.
Do Decibel Meter or CodeBrew have ads?
Decibel Meter shows ads; CodeBrew does not.
Which is updated more often, Decibel Meter or CodeBrew?
Decibel Meter ships an update every 2 months, and CodeBrew every 3 months. Most recently, Decibel Meter was updated on October 29, 2026 and CodeBrew on October 25, 2026.

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