monocro
Vocal Reps Privacy Policy
Last updated: 2026-11-08
Vocal Reps is a paid app built by AKIHIRO OURA (monocro). This page explains what information the app uses, what leaves your device, and why.
Your music and recordings stay on your device
Songs you add, the separated vocal and instrumental tracks, your recordings, pitch analysis, and lyrics are processed and stored only on your device. Vocal separation and pitch analysis run on the device. We never upload your audio, your recordings, or your music library.
The microphone is used only to record your singing while you practice. Access to your Apple Music library is used only to let you choose songs to practice. You can turn off either permission at any time in Settings.
Lyrics lookup
To show lyrics, the app may send a song's title, artist, album, and length to LRCLIB (lrclib.net), a free public lyrics service. Nothing that identifies you is sent with the request. Lyrics that are found are saved on your device so the same song is not looked up again. LRCLIB's own policies apply to their service.
Usage statistics
To find bugs and improve the app, Vocal Reps sends anonymous usage statistics to Mixpanel (servers in the United States). This includes which features are used (for example, adding a song, separating vocals, recording, and playback), numbers about that use (such as song and recording length, speed, key, and the number of songs, phrases and takes), error reasons when something fails, basic device information (device model, OS version, app version, app and device language), your App Store country, and a random identifier created when the app is installed. Your location is not used.
We do not send your name, email address, audio, recordings, song titles, artist names, or lyrics. This data is not linked to your identity, is not used for advertising, and is not used to track you across apps or websites owned by other companies. The app does not use the advertising identifier (IDFA).
Purchases
Vocal Reps is purchased through the App Store. Payment is handled by Apple, and we do not receive your payment details. When you request a refund, Apple may ask us for limited information about the purchase, and we share only what is needed to answer that request.
Children
The app does not knowingly collect personal information from children under 13.
Changes to this policy
We may update this policy from time to time. Changes are posted on this page with a new date and take effect when posted.
Contact
If you have any questions about this policy, contact us at monocro.dev@gmail.com.
日本語の要約
曲・分けた歌声と伴奏・録音・音程の解析・歌詞は、端末の中だけで処理し保存します。音や録音、ライブラリを外へ送ることはありません。
歌詞を探すときだけ、曲名・歌手・アルバム・長さを LRCLIB (lrclib.net) に送ります。
不具合を直し App を良くするために、使った機能と、その数 (曲や録音の長さ・速さ・キー・曲やフレーズや録音の数など)・失敗の理由・端末の種類と OS と App の版・App と端末の言語・App Store の国・入れた時に作る乱数の ID を、匿名の統計として Mixpanel (米国) に送ります。名前・メールアドレス・音・録音・曲名・歌手・歌詞は送りません。あなた個人に紐づけず、広告や他社をまたぐ追跡には使いません。
お問い合わせ: monocro.dev@gmail.com