Smart Noise Detector vs Find Device
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Smart Noise Detector
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Smart Noise Detector helps you capture sounds that stand out from the background. Start monitoring, let the app measure the room for three seconds, and it will record automatically when the sound crosses your chosen threshold. AUTOMATIC RECORDING • Monitor relative sound levels in real time. • Choose a threshold of +12, +18, or +24 dB above the ambient baseline. • Save each sound event as a separate M4A file. • Stop each recording after two seconds below the threshold. • Recalibrate when your surroundings change. • Continue monitoring with background audio support. FIND AND SHARE YOUR RECORDINGS Review recordings by date, time, and duration. Play a recording or tap Share to send the audio file through the iOS share sheet, use AirDrop, or save a copy to Files. Tap Select to choose several recordings or select all, then review the count before deleting. Canceling keeps your selection, and any recordings that cannot be deleted stay in the list so you can try again. ENGLISH AND KOREAN The app supports English and Korean, with English as the default for other device languages. YOUR RECORDINGS STAY WITH YOU Recordings are stored on your device and remain available when you update the app. NoiseDetector does not collect your recordings or upload them to a server. Audio leaves the app only when you choose to share it. Sound levels are relative to your device microphone and are not calibrated sound pressure measurements. Use the app to review everyday sounds, noise events, or barking while monitoring is active.
Find Device
Locate nearby Bluetooth devices and track your own with live signal strength. Visualize proximity and last-seen locations to find your gadgets.
- Scan nearby Bluetooth devices
- View live signal strength and RSSI
- Estimate device proximity
- Track a single device
- Mark favorite devices
- Save last-seen locations
- View devices on a map
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Find Device: Item Tracker helps you scan nearby Bluetooth signals and track your devices using live signal strength. Use it to find devices around you, compare signal levels, and move closer with a simple proximity view. The app shows nearby named Bluetooth devices, estimated distance, RSSI, last seen time, and signal strength so you can quickly understand what is around you. Features: • Scan nearby Bluetooth devices • View live signal strength and RSSI • Estimate how close a device may be • Track one device with a focused finder screen • Mark favorite devices • Pause and refresh tracking anytime • Get notified when a selected device is found nearby • Save where your iPhone last detected each signal • View detected devices on a last-seen map • Build a relative signal map by walking around • See hidden unnamed Bluetooth signals separately Bluetooth Finder is designed for real-world Bluetooth behavior. Bluetooth signals can change based on walls, distance, battery level, interference, device orientation, and environment. Distance and map positions are estimates based on where your iPhone detects the signal, not exact GPS locations of the device. For best results, walk slowly, turn in different directions, and watch the signal strength update as you move. Terms of Use: https://nhantran2112.github.io/bluetooth-finder-device/terms.html
Screenshots
Verdict
The clearest difference is price: Find Device at Free against Smart Noise Detector's $0.99. Find Device also leads on update cadence (fortnightly vs every 3 months). Smart Noise Detector's advantage is in-app purchases (none vs 3) and ads (none vs shown). On device support and iOS requirement 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
Find Device is free to download; Smart Noise Detector costs $0.99 up front. Find Device sells 3 in-app purchases, starting at $3.99 per 7 days. Smart Noise Detector asks for nothing beyond the download.
Smart Noise Detector ships an update every 3 months, Find Device fortnightly. The most recent releases landed on October 5, 2026 and October 17, 2026 respectively.
| Parameter | Smart Noise Detector | Find Device |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Every 3 months | Fortnightly — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | — | Ad-supported |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 1 MB | 58 MB |
| Age rating | 4+ | 4+ |
| Developer | YongShin Kwak | Nhan Tran |
In-app purchases
Smart Noise Detector
No in-app purchases
Find Device
- Weekly$3.997 Days
- Yearly$19.991 Year
- Onetime$29.99









