CVOsc, published by Aleph Void LLC ("Aleph Void," "we," "us," or "our"), does not collect, transmit, sell, or share any personal data. Everything the app does happens locally on your device. This page explains exactly what each permission is used for and why it is required.
CVOsc exists for one purpose only.
CVOsc is a multichannel oscilloscope app for inspecting, recording, and playing back Control Voltage (CV) and audio-rate signals from a USB audio interface.
It helps musicians, Eurorack and modular synth users, and engineers visualize signals from any DC offset enabled soundcard, detect pitch in real time, and capture recordings for later reference or playback. The app does not analyze your behavior, build a profile, or perform any activity unrelated to signal capture, visualization, and playback.
What we collect, transmit, and store — in plain English.
Nothing. CVOsc does not collect personally identifiable information, location, contacts, browsing history, authentication credentials, financial data, health information, communications, or any other personal data.
Nothing. The app makes no network requests to any server operated by us or any third party. Audio captured from your interface never leaves your device. There is no telemetry, analytics SDK, crash reporter, or advertising network embedded in the app.
On your device only: your recordings (per-channel audio files and JSON sidecars), channel scaling preferences, and UI settings. This data lives in the app's sandboxed storage and is retained until you delete it from within the app or uninstall the app, at which point it is removed by the operating system.
We do not sell or share user data with third parties. We do not use user data for advertising, credit assessment, or any purpose unrelated to the app's single purpose.
Each permission CVOsc requests on iOS, iPadOS, and Android, and why it is required for the app to function.
iOS / iPadOS (NSMicrophoneUsageDescription) and Android (android.permission.RECORD_AUDIO) both group USB audio class input under the microphone permission. CVOsc requires this permission to read samples from the connected USB audio interface — that is the app's core function. It is not used for the built-in microphone in any non-obvious way; the signal chain is simply whatever audio device you have routed as input.
Declared as android.hardware.usb.host (not required). Allows CVOsc to enumerate a connected USB audio class interface (a DC offset enabled soundcard). The manifest includes a USB_DEVICE_ATTACHED intent filter so Android can offer to open CVOsc when a supported interface is plugged in. No USB data is ever forwarded off the device.
Recordings and settings are written to the app's sandboxed storage — the Documents directory on iOS / iPadOS and scoped app storage on Android. No cloud storage, no shared folders, no access to other apps' data. Files remain on the device until you delete them or uninstall the app.
The Android build uses Google Play Billing to unlock two optional features: the Tuner and Record/Playback. Purchases are processed entirely by Google Play — we never see your payment information. The only thing CVOsc receives from the Billing library is a boolean indicating whether you own each product. Entitlement state is stored locally; no account is created.
CVOsc does not perform network requests for app functionality. On Android, Google Play Billing talks to Google's servers through the Billing library; our code does not open sockets or contact any remote endpoint. There is no analytics, crash reporting, advertising, or remote configuration service.
CVOsc does not execute remote code. The app contains no dynamic module loading, no remotely hosted scripts, and no runtime evaluation of downloaded payloads. All Swift and Kotlin code is bundled inside the app binary reviewed by the App Store and Google Play.
CVOsc uses the standard audio-session modes on each platform (AVAudioSession.Mode.measurement on iOS / iPadOS, AudioRecord / AudioTrack on Android) only while you have the app in the foreground and capture or playback is active. There is no background recording when the app isn't in use.
Our certification under the App Store Review Guidelines and Google Play Developer Program Policies.
We certify that CVOsc's data usage complies with the Apple App Store Review Guidelines (including the App Privacy Details requirements) and the Google Play Developer Program Policies (including the User Data policy and the Families policy). Specifically:
The data controller responsible for CVOsc is Aleph Void LLC. Because the app does not collect, transmit, or process any personal data on our servers, there are no data processing activities for which we act as a controller in practice — but Aleph Void LLC remains the publisher accountable for this policy.
CVOsc is a tool for musicians, audio engineers, and Eurorack / modular synth users. It is not directed at children under the age of 13 (or under 16 in jurisdictions where that is the applicable age). We do not knowingly collect personal information from children. Because the app does not collect any personal information from any user, no special handling for children's data is required.
Privacy laws such as the EU General Data Protection Regulation (GDPR), the UK GDPR, and the California Consumer Privacy Act (CCPA/CPRA) grant users rights including access, correction, deletion, portability, and the right to object to processing of their personal data.
Because CVOsc does not collect, transmit, store on our servers, sell, or share any personal data, we hold no personal data about you to access, correct, export, or delete. All data the app uses (recordings, channel settings, UI preferences) is stored locally on your own device. You can exercise the equivalent of all of these rights yourself at any time by viewing, editing, or deleting that data from within the app, from the system file manager, or by uninstalling the app.
We do not "sell" or "share" personal information as those terms are defined under the CCPA/CPRA.
We may update this privacy policy from time to time, for example to reflect changes to the app's functionality, requested permissions, or applicable law. When we do, we will update the "Effective date" and "Last updated" fields below and post the revised policy at this URL. For material changes, we will additionally note the change in the release notes for the corresponding version of the app on the App Store and Google Play listings. Your continued use of the app after a revised policy takes effect constitutes acceptance of the updated policy.
Questions, concerns, or reports about this privacy policy can be sent to privacy@alephvoid.com or filed as a public issue on our GitHub repository. See also our Support page.
Effective date: April 23, 2026
Last updated: April 23, 2026