Comparison

Noise Diary vs 騒音メモ

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

Head to head
About

Noise Diary

Features
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Noise Diary is a focused tool for measuring environmental sound and saving the moment as a noise event. What you can do: - See an approximate dB(A) reading - Start and end an event to save Leq, maximum, and minimum - Add a tag and notes - Review a local timeline - Export CSV and PDF - Apply local calibration using a reference sound level meter - Continue only an event you started while the screen is locked or another app is open Privacy first: - Analysis runs on your device - No audio recording is created - Audio and measurements are not uploaded - No background measurement outside an event you start Important: Readings are approximate values calculated from the iPhone microphone. Noise Diary is not an IEC-compliant professional sound level meter. Do not use it for legal, health, hearing-safety, or workplace-compliance decisions.

About

騒音メモ

Features
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騒音メモは、気になった音を10秒で測定し、日時・種類・任意メモとともに端末内へ保存するiPhoneアプリです。必要な場合だけ、測定前に録音をオンにして10秒音声も保存できます。 【主な機能】 ・10秒測定で平均・最大の相対音量レベルを記録 ・足音、話し声、音楽、工事、その他に分類 ・500文字までの任意メモ ・必要な測定だけ端末内へ音声保存 ・録音の再生、録音だけの削除、記録との同時削除 ・全件数、22時〜6時の深夜比率、24時間分布を集計 ・相談時に共有しやすいA4 PDFとCSVを作成 ・指定した時間帯と閾値で見守り 無料で20件まで記録できます。買い切り¥600で記録数の上限解除、PDF・CSV、見守り機能を利用できます。 【プライバシー】 録音は初期状態でオフです。記録と録音は端末内だけに保存され、開発者のサーバーへ送信されません。位置情報、アカウント、広告、外部分析SDKは使用しません。 【ご注意】 表示値は未校正のiPhoneマイクによる相対的な目安です。校正済み騒音計の値や法的な測定値としては使用できません。

Screenshots

Noise Diary3 screens
騒音メモ4 screens

Verdict

The call

Noise Diary and 騒音メモ are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Noise Diary sells 1 one-off in-app purchase and 騒音メモ sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ScorecardNo meaningful differences
Noise Diary versus 騒音メモ: the parameters behind the verdict, then further details
ParameterNoise Diary騒音メモ
PriceFreeFree
AdsNoNo
In-app purchasesYesYes
DevicesiPhoneiPhone
Requires iOS17.017.0
Further details — not scored
Size2 MB2 MB
Age rating4+4+
Developer逸文 周kenzo sawada

In-app purchases

1 purchases

Noise Diary

One-time1
  • Noise Diary Pro Lifetime$6.99
1 purchases

騒音メモ

One-time1
  • 騒音メモ フル機能$3.99

Questions

Is Noise Diary free?
Noise Diary is free to download, with in-app purchases available.
Is 騒音メモ free?
騒音メモ is free to download, with in-app purchases available.
Do Noise Diary or 騒音メモ have ads?
Neither Noise Diary nor 騒音メモ shows ads.

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