Noise Recorder is made and published by SiU Ahn. AppBrain is an independent app data site and isn't affiliated with SiU Ahn. The app name, icon, screenshots and description belong to SiU Ahn and are shown as published on the App Store.
AppBrain's verdict
- Last updated
- August 3, 2026
- Size
- 45.3 MB
User feedback
Ratings and reviews on the App StoreComments on Noise Recorder for iOS
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Store listing
By SiU Ahn, from the App Store
Screenshots by SiU Ahn, from the the App Store listing
Description by SiU Ahn Written by the developer, not by AppBrain. Click to read.
Record the noise around you and discover your own sound patterns.
Noise Recorder is a personal monitoring tool. It measures ambient noise as a decibel (dB) reading, records audio in segments, and helps you see when your environment is quiet, noisy, or somewhere in between. The goal is to help you understand your own surroundings — not to produce evidence or resolve disputes.
No signup, no login, no cloud account. All recordings and statistics stay on your device.
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Features
Real-time decibel reading
Live dB number plus a scrolling waveform from your microphone. Color-coded levels show quiet, normal, and loud zones at a glance.
Automatic segmented recording
Recording is split into segments of a length you choose. Segments where every sample stayed below your dB threshold are deleted automatically to save space.
Noise event detection
The app watches your background noise level and flags sudden spikes. Each spike keeps a 5-second context window of audio so you can listen back and understand what happened.
Tags and notes
Tag each event with one of the seven built-in sound types (footsteps, thump, construction, water, music or TV, pet, other) or your own custom tags. You can attach an optional reference photo too.
Hourly statistics
See a 24-hour bar chart of when noise tends to happen and a "quiet time vs noisy time" summary, all derived from your local data.
Export
Export filtered records as PDF, Excel, or ZIP. You can apply a minimum dB threshold and exclude tags you do not want included.
Localization
English and Korean. Switch from Settings — change applies immediately, no restart.
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What this app is and is not
This app is a personal tool for understanding your own ambient noise. It is not designed to produce official records, evidence, surveillance footage, or material for legal disputes. The numbers and recordings are for your own reference.
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Data and permissions
All recordings, photos, and statistics are stored only in on-device storage (Hive and SharedPreferences). Nothing is uploaded to a server we control. The microphone permission is required to measure and record. Camera and photo permissions are only used when you choose to attach a reference photo or share an export.
Ads are served by Google AdMob. Personalized vs non-personalized ads depend on your iOS App Tracking Transparency (ATT) choice.
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Contact
Questions or feedback: siwooeo@gmail.com
Noise Recorder is a personal monitoring tool. It measures ambient noise as a decibel (dB) reading, records audio in segments, and helps you see when your environment is quiet, noisy, or somewhere in between. The goal is to help you understand your own surroundings — not to produce evidence or resolve disputes.
No signup, no login, no cloud account. All recordings and statistics stay on your device.
---
Features
Real-time decibel reading
Live dB number plus a scrolling waveform from your microphone. Color-coded levels show quiet, normal, and loud zones at a glance.
Automatic segmented recording
Recording is split into segments of a length you choose. Segments where every sample stayed below your dB threshold are deleted automatically to save space.
Noise event detection
The app watches your background noise level and flags sudden spikes. Each spike keeps a 5-second context window of audio so you can listen back and understand what happened.
Tags and notes
Tag each event with one of the seven built-in sound types (footsteps, thump, construction, water, music or TV, pet, other) or your own custom tags. You can attach an optional reference photo too.
Hourly statistics
See a 24-hour bar chart of when noise tends to happen and a "quiet time vs noisy time" summary, all derived from your local data.
Export
Export filtered records as PDF, Excel, or ZIP. You can apply a minimum dB threshold and exclude tags you do not want included.
Localization
English and Korean. Switch from Settings — change applies immediately, no restart.
---
What this app is and is not
This app is a personal tool for understanding your own ambient noise. It is not designed to produce official records, evidence, surveillance footage, or material for legal disputes. The numbers and recordings are for your own reference.
---
Data and permissions
All recordings, photos, and statistics are stored only in on-device storage (Hive and SharedPreferences). Nothing is uploaded to a server we control. The microphone permission is required to measure and record. Camera and photo permissions are only used when you choose to attach a reference photo or share an export.
Ads are served by Google AdMob. Personalized vs non-personalized ads depend on your iOS App Tracking Transparency (ATT) choice.
---
Contact
Questions or feedback: siwooeo@gmail.com
Safety and technology
Found in the app by AppBrain- Price
- Free
- App size
- 45.3 MB
- Content rating
- Everyone
Technologies used by Noise Recorder
Releases
Updates seen on the App Store- Version
- 1.1.6
- Launched
- May 2026
No changelog data
Alternatives
Similar apps and more from SiU AhnMore from SiU Ahn
Rankings
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About the app and developer
About Noise Recorder
Noise Recorder is an utilities app developed by SiU Ahn.
User Ratings
The app has no ratings yet.
App Information
Noise Recorder is freely available from the App Store. The app size is 45.34 MB. The latest version available is 1.1.6. The last update was on August 3, 2026.
Technical Requirements
The app has a content rating of Everyone. The app has been available on the App Store since May 2026.
Developer information for SiU Ahn
Address: