Comparison

Decibel Meter Sound Detector vs G

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

G

Measure real-time G-forces on three axes with a precision crosshair display. Track peak G, acceleration history, and impact forces. Ideal for car performance, roller coasters, aviation, and physics experiments.

Highlights
  • 3-axis G-force tracking
  • Precision crosshair display
  • Peak G detection
  • Real-time chart recording
  • G-force level guide
  • Adjustable sensitivity
Features
Read full description

G-Force Meter+ Accelerometer shows the G-force your phone feels right now on every axis, then turns each drive, ride or run into a result you can read: press Start, press Stop, and a session card shows the peak G, the average G and how hard you cornered, accelerated and braked. ▶ Live G-force on every axis • Total G on a round gauge with a moving dot for the direction of the force • Lateral (X), longitudinal (Y) and vertical (Z) values side by side • Min, average, max and peak while you record, plus peak chips for lateral, accel and brake • A scrolling chart of X, Y, Z and total G, or a sentence that explains the current G level ▶ Stop and see the session Press Stop and a Session result card appears: • Duration, peak G and average G • Peak lateral, peak accel and peak brake • A second-by-second G trend line (the first 10 minutes of a session) • With the Car activity selected, a plain-language reading of the drive, from Gentle to Very hard, based on the peak horizontal G Every finished session is saved to History automatically (the last 20). A session shorter than 2 seconds is not saved. If you switch apps mid-session, recording pauses in the background and the same session resumes when you return, and a session cut off when the system closes the app is recovered into History on the next launch. Share a result as text in one tap. ▶ History and personal bests Open History from the top of the Meter screen: personal bests, every session with its G trend, your race runs and rolling runs. Export sessions, runs or rolling intervals as CSV. A statistics report CSV unlocks for 24 hours after a short ad. ▶ G-G friction circle A dedicated tab plots lateral against longitudinal G as a trail inside rings at 0.5, 1.0 and 1.5 G, with peak lateral, longitudinal and combined G, so you can see how much grip you used in corners and under braking. ▶ Race mode • 0-60 mph launch timing with raw and rollout times • 60-0 mph brake test with time, distance and speed shed, estimated from the motion sensors • Rolling intervals: 60-120 mph, 100-200 km/h, 30-50 mph or your own range • GPS cross-check with a GPS 0-60 time, a quarter mile time and trap speed. A good fix shows a GPS-verified badge, otherwise the result is labelled as a sensor estimate • Regen profile for electric cars: braking events sorted by their strength into likely regen (gentle) and likely friction (hard), with their maximum G ▶ Set up for your car • Dash or Holder mount, auto-level and Re-level now • Reference 1G (resting reads 1.00 G) or 0G (resting reads 0.00 G) • Display sensitivity from 0.5x to 2.0x for the live gauge; the result card always shows the true values • Activity presets for Car, Roller-coaster, Sport, Elevator and Aircraft explain what each G level means there • A Guide tab with 8 tips on mounting, reading each axis and typical G in daily life • The screen stays on while recording • Interface in 30 languages ▶ Good to know Readings come from the phone's motion sensor, so mount the phone firmly and level it before you record. Launch and braking times are estimates unless they carry the GPS-verified badge. Only drive-test where it is safe and legal. For drivers checking how smooth or hard they drive, track-day and drag-strip fans, roller-coaster riders, and students who want to see physics in numbers.

Screenshots

Decibel Meter Sound Detector4 screens
G3 screens

Verdict

The call

The clearest difference is rating: Decibel Meter Sound Detector at 4.7 against G's 3.7. Decibel Meter Sound Detector also leads on ads (none vs shown) and ratings volume (56K vs 3). G's advantage is in-app purchases (none vs 6) and update cadence (every 4 days vs every 5 weeks). On price 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 Sound Detector sells 6 one-off in-app purchases. G asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Decibel Meter Sound Detector holds the better App Store score, 4.7 against 3.7. That said, the two scores are not equally well evidenced: Decibel Meter Sound Detector has 56K ratings behind it against 3, so its average is the more settled of the two.

UpkeepUpdate frequency

Decibel Meter Sound Detector ships an update every 5 weeks, G every 4 days. Both last shipped on October 24, 2026.

Scorecard8 real differences · 2 level
Decibel Meter Sound Detector versus G: the parameters behind the verdict, then further details
ParameterDecibel Meter Sound DetectorG
PriceFreeFree
Rating4.7 (56K ratings) — better3.7 (3 ratings)
Positive reviews78.7% of reviews—
Number of ratings56K — better3
Update frequencyEvery 5 weeksEvery 4 days — better
AdsNo — betterYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesAd-supported — better
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS14.0 — better16.4
Further details — not scored
Size20 MB53 MB
Age rating4+17+
DeveloperAshraf ThoppukadavilKyu-Hee Jang

Customer experience

Decibel Meter Sound Detector

All ratings54,030 ratings
Positive93.2%
Neutral3.7%
Negative3.1%
Written reviews422 reviews
Positive78.7%
Neutral4.5%
Negative16.8%

G

All ratings3 ratings
Positive66.7%
Neutral0.0%
Negative33.3%

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

G

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

G

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 G free?
G is free to download, with no in-app purchases.
Which has better reviews, Decibel Meter Sound Detector or G?
Decibel Meter Sound Detector is rated higher. Decibel Meter Sound Detector averages 4.7 out of 5 from 56K ratings, while G averages 3.7 from 3 ratings.
Do Decibel Meter Sound Detector or G have ads?
G shows ads; Decibel Meter Sound Detector does not.
Which is updated more often, Decibel Meter Sound Detector or G?
Decibel Meter Sound Detector ships an update every 5 weeks, and G every 4 days. Most recently, Decibel Meter Sound Detector was updated on October 24, 2026 and G on October 24, 2026.

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