サウンドチェッカー vs Ai OBD Car Scanner
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
サウンドチェッカー
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What's the noise level around you? Sound Checker measures ambient noise levels in real-time using your phone's microphone. - Check apartment noise from neighbors - Measure snoring or teeth grinding volume - Monitor noise at construction sites or events - Check sound levels in your baby's room - Measure quietness of cafes and offices Features: - Real-time dB measurement with large meter display - 30-second waveform graph - Measurement history (min/avg/max dB auto-saved) - WHO noise level guidelines & Japan environmental standards Your microphone is used only for measurement. No audio data is stored or transmitted. Completely free with all features available. Note: This app provides approximate noise level readings using your smartphone's microphone. For legal evidence or precise measurements, please use a professional sound level meter.
Ai OBD Car Scanner
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Enlarge AI OBD は、車両診断・モニタリングアプリです。 Bluetoothを使用してスマートフォンと車両を接続し、故障診断や各種車両データの確認を行うことができます。 故障コードの読み取り・消去、パフォーマンステストなどの機能に対応しています。 また、高速データ通信に対応し、低消費電力でご利用いただけます。 【対応言語】 English / 日本語 【ご注意】 ・Bluetooth対応OBD2デバイスが必要です。 ・対応する機能や表示項目は、車種およびECU仕様により異なる場合があります。
Screenshots
Verdict
The clearest difference is device support: Ai OBD Car Scanner at 2 against サウンドチェッカー's —. Ai OBD Car Scanner also leads on iOS requirement (13 vs 15.1). On price and in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | サウンドチェッカー | Ai OBD Car Scanner |
|---|---|---|
| Price | Free | Free |
| Update frequency | — | Every 2 months |
| Ads | — | No |
| In-app purchases | No | No |
| Devices | — | iPhone, iPod — better |
| Requires iOS | 15.1 | 13 — better |
| Further details — not scored | ||
| Size | 27 MB | 104 MB |
| Age rating | 4+ | 4+ |
| Developer | Yujiro Sakai | yuui okuyama |
In-app purchases
サウンドチェッカー
No in-app purchases
Ai OBD Car Scanner
No in-app purchases









