Low Frequency Detector Downloads & RevenueLow Frequency Detector · App Store
Not in any tracked top chart right now.
Updated 11 Nov 2026 · rankings refresh through the day
DeveloperTOON,LLC
CategoryUtilities
Price9.99 GBP
Released
Rating★ 3.0 (2)
Version8.1
Age rating4+
First seen by us
25 Sep 2026
25 Sep 2026Installs (est.)1k+ worldwide
Low Frequency Detector update history & changes
Last change · 16 events since 26 Jan 2017Full timeline ↓📈New best rank in the overall chart: #153📈New best rank in the overall chart: #179🆕First spotted by AppInsider📦Version 8.1🆕Released on the App Store
Full timeline · 16 events
- 📈Low Frequency Detector new best rank in the overall chart: #153Top Paid · All Apps · IT
- 📈Low Frequency Detector new best rank in the overall chart: #179Top Paid · All Apps · ES
- 📈Low Frequency Detector charting in a new country in 2 chartsSpain · Italy
- 📈Low Frequency Detector entered the top 100Top Paid · Utilities · IT
- 📈Low Frequency Detector entered the top 100Top Paid · Utilities · AU
- 📈Low Frequency Detector charting in a new countryAustralia
- 📈Low Frequency Detector charting in a new countrySweden
- 📈Low Frequency Detector entered the top 100Top Paid · Utilities · CA
- 📈Low Frequency Detector charting in a new country in 2 chartsCanada · United States
- 📈Low Frequency Detector entered the top 100Top Paid · Utilities · GB
- 📈Low Frequency Detector charting in a new countryUnited Kingdom
- 📈Low Frequency Detector entered the top 100Top Paid · Utilities · DE
- 📈Low Frequency Detector charting in a new countryGermany
- 🆕Low Frequency Detector first spotted by AppInsider#95 in Top Paid · Utilities · Japan
- 📦Low Frequency Detector version 8.1- Improved internal processing and performance.
- 🆕Low Frequency Detector released on the App Store
Collected from the stores by AppInsider since we first spotted the app. Dates are when we saw each change.
Rating
3.0 ★
2 ratings
Measured
Low Frequency Detector on the App Store
App details
App ID
1196584147
Publisher
TOON,LLC
On the store since
Jan 2017
9 years on the store
Minimum OS
iOS 26.2+
iPhone 11 and later
Devices
iPhone · iPad
Content rating
4+
Languages
1
EN
Size
1 MB
Low Frequency Detector downloads
Worldwide, per day, and installs to date. The band is open; the exact number is free with an account.
How this is calculated
Apple publishes no download counts. App Store downloads come from chart positions and daily rating growth per country, calibrated on Google Play install counts; lifetime installs from ratings worldwide × installs per rating. Confidence is the chance the real number is within half to double ours.
Active users
All platforms, worldwide. Free with an account.
Stickiness (DAU / MAU)
how many monthly users open it on a given day
How this is calculated
Monthly users come from lifetime installs across every store, fitted on monthly active user figures companies publish; daily users = monthly × the typical daily/monthly ratio for the category. Confidence is the chance the real number is within half to double ours.
Business model: Ad-led
How Low Frequency Detector makes money: subscriptions, one-off purchases and ads.
Ads · 1 ad networks
Ads
/mo
of revenue
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| Not charting right now. | ||
Ratings
App Store, worldwide.
Rating
3.0 ★
2 ratings
Measured
Ratings
2
Measured
Review momentum
ⓘ How we measure thisNew ratings a week
under 1
4-week average
Lifetime rating
4.1★
recent stars not readable yet: new ratings are a tiny share of the total
Review momentum
20/100
faster than 0% of Utilities apps
Review momentum (0-100) blends how fast the app collects ratings compared with other apps in its category (60%), whether that pace is speeding up (25%) and what recent raters give it (15%; recent stars well below lifetime pull it down). Ratings counts are read daily. A jump usually means a launch, a feature, ads or a new review prompt.
About Low Frequency Detector
"Low Frequency Detector" is an acoustic measurement tool for detecting low-frequency sounds that is hard to hear in normal situation.
The human ear is not sensitive enough to low-frequency sounds. If you are exposed to noise from nearby construction or factories without realizing it, you may feel discomfort or a sense of pressure. In such cases, you can use this app to check what kind of low-frequency noise is present.
Generally, low-frequency sounds is a sound wave ranging from 1Hz to 100Hz. Depending on its frequency component and sound level, the degree of influence on the human body and the noise sensation is different.
This app allows you to examine the frequency component of low-frequency sounds by 1/3 octave band analysis and FFT analysis.
Features:
- Low-frequency power level measurement less than 100Hz (LF Level): Flat characteristic, Updating indication of measurement period 1 sec.
- Power level measurement in the audible band (Leq): Flat characteristic, Updating indication of measurement period 200ms.
- 1/3 octave band analysis (OCT)
- FFT analysis (FFT)
- Time course graph (TIME)
- Snapshot (Snap) on the measurement display screen.
- Report function (Report): Analysis report of a peak LF Level with TIME, OCT and FFT.
- Measurement time: up to 60 sec
Functions:
The measurement analysis is performed in the following step. Be sure to set the measurement conditions in Step-1 once before starting the sound measurement.
1) Calibration (Calibrate): The reference signal (1kHz sine wave) is output to determine the reference noise level for the low-frequency component. If the volume level of iPhone is set to about 20-50%, the calibration will automatically adjust it to the optimum volume level for the reference signal.
2) Measurement (Measure): Analyze a power level of low-frequency sounds.
- LF Level (dB): Low-frequency power level less than 100Hz.
- Leq (dB): Sound power level with the frequency weight characteristic Z (Flat) of the audible band.
3) Measurement display: It can select either 1/3 octave band frequency analysis, FFT analysis or Time course graph. They are updated in real time.
4) Report: Measurement result report. It is effective when measuring for 10 seconds or more.
# Time course graph: TIME
- Low-frequency (LF) Level (dB): Time course graph with peak level noise level judgment (RED-very noisy, YELLOW-noisy, GREEN-normal) at the peak level.
- LF max (dB): maximum dB value of low frequency.
# Frequency response graph: OCT, FFT
- OCT Band LF max (dB): maximum dB value in 1/3 octave band at LF max observation.
- Max Level Frequency (Hz): peak frequency at LF max observation.
Notes:
- The sound measurement of the low-frequency range is a level difference with respect to the reference signal, which indicates the relative power level.
- The reference signal is output during calibration and sound level measurement.
- Do not change the volume level of iPhone after the calibration.
- White line in the OCT and FFT m
The human ear is not sensitive enough to low-frequency sounds. If you are exposed to noise from nearby construction or factories without realizing it, you may feel discomfort or a sense of pressure. In such cases, you can use this app to check what kind of low-frequency noise is present.
Generally, low-frequency sounds is a sound wave ranging from 1Hz to 100Hz. Depending on its frequency component and sound level, the degree of influence on the human body and the noise sensation is different.
This app allows you to examine the frequency component of low-frequency sounds by 1/3 octave band analysis and FFT analysis.
Features:
- Low-frequency power level measurement less than 100Hz (LF Level): Flat characteristic, Updating indication of measurement period 1 sec.
- Power level measurement in the audible band (Leq): Flat characteristic, Updating indication of measurement period 200ms.
- 1/3 octave band analysis (OCT)
- FFT analysis (FFT)
- Time course graph (TIME)
- Snapshot (Snap) on the measurement display screen.
- Report function (Report): Analysis report of a peak LF Level with TIME, OCT and FFT.
- Measurement time: up to 60 sec
Functions:
The measurement analysis is performed in the following step. Be sure to set the measurement conditions in Step-1 once before starting the sound measurement.
1) Calibration (Calibrate): The reference signal (1kHz sine wave) is output to determine the reference noise level for the low-frequency component. If the volume level of iPhone is set to about 20-50%, the calibration will automatically adjust it to the optimum volume level for the reference signal.
2) Measurement (Measure): Analyze a power level of low-frequency sounds.
- LF Level (dB): Low-frequency power level less than 100Hz.
- Leq (dB): Sound power level with the frequency weight characteristic Z (Flat) of the audible band.
3) Measurement display: It can select either 1/3 octave band frequency analysis, FFT analysis or Time course graph. They are updated in real time.
4) Report: Measurement result report. It is effective when measuring for 10 seconds or more.
# Time course graph: TIME
- Low-frequency (LF) Level (dB): Time course graph with peak level noise level judgment (RED-very noisy, YELLOW-noisy, GREEN-normal) at the peak level.
- LF max (dB): maximum dB value of low frequency.
# Frequency response graph: OCT, FFT
- OCT Band LF max (dB): maximum dB value in 1/3 octave band at LF max observation.
- Max Level Frequency (Hz): peak frequency at LF max observation.
Notes:
- The sound measurement of the low-frequency range is a level difference with respect to the reference signal, which indicates the relative power level.
- The reference signal is output during calibration and sound level measurement.
- Do not change the volume level of iPhone after the calibration.
- White line in the OCT and FFT m
Latest updates
8.1
- Improved internal processing and performance.
