Comparison

OCCDEC Occasion Detection vs Noise Recorder

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

Head to head
About

OCCDEC Occasion Detection

Features
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OCCDEC Occasion Detection turns your device into an AI-powered audio detection and recording station. Detect critical sounds like glass breaking, gunshots, screams, sirens, dog barks, and more in real time. Features: - Real-time AI-powered audio event detection - Record and classify audio events automatically - Connect to OCCDEC Security Guard for instant alerts - Built with advanced machine learning models - Supports 15+ sound event categories We strive to make your environment safer and alerts faster with the best AI in the world.

About

Noise Recorder

Features
Read full description

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 โ€” 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 โ€” 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

Screenshots

OCCDEC Occasion Detection4 screens
Noise Recorder4 screens

Verdict

The call

The clearest difference is ads: OCCDEC Occasion Detection at none against Noise Recorder's shown. Noise Recorder's advantage is update cadence (every 2 days vs every 2 weeks). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

OCCDEC Occasion Detection ships an update every 2 weeks, Noise Recorder every 2 days. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.

Scorecard2 real differences ยท 4 level
OCCDEC Occasion Detection versus Noise Recorder: the parameters behind the verdict, then further details
ParameterOCCDEC Occasion DetectionNoise Recorder
PriceFreeFree
Update frequencyEvery 2 weeksEvery 2 days โ€” better
AdsNo โ€” betterYes
In-app purchasesNoNo
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.115.0 โ€” better
Further details โ€” not scored
Size32 MB45 MB
Age rating4+4+
DeveloperLineSpotting ABSiU Ahn

In-app purchases

None

OCCDEC Occasion Detection

No in-app purchases

None

Noise Recorder

No in-app purchases

Questions

Is OCCDEC Occasion Detection free?
OCCDEC Occasion Detection is free to download, with no in-app purchases.
Is Noise Recorder free?
Noise Recorder is free to download, with no in-app purchases.
Do OCCDEC Occasion Detection or Noise Recorder have ads?
Noise Recorder shows ads; OCCDEC Occasion Detection does not.
Which is updated more often, OCCDEC Occasion Detection or Noise Recorder?
OCCDEC Occasion Detection ships an update every 2 weeks, and Noise Recorder every 2 days. Most recently, OCCDEC Occasion Detection was updated on November 3, 2026 and Noise Recorder on November 5, 2026.

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