Privacy Policy

Last updated: 12 July 2026

Rune (the “app”) is made by MRBOOZ. Rune is an audio-feedback app: you send it a track, and an AI-assisted engine gives you an honest read on it before you release it. This policy explains exactly what data Rune handles, and what it does not.

The short version. No account. No login. No ads. No tracking. Your tracks, reads, and receipts live on your device. When you ask for a read, the audio you choose is sent securely to be analysed and is not kept afterwards. You can erase everything, anytime, from Settings.

What we process

Audio you submit for a read. When you ask Rune to read a track, the audio file you pick is sent over an encrypted (HTTPS) connection to our processing server, which measures it and forwards it to our AI provider to generate the written feedback. Your audio is processed only to produce that read and is not stored on our servers afterwards. It is not used to train any AI model.
Track details you enter (such as the title and genre) are sent with the read to give context. They are not stored on our servers after the read.
Data kept on your device only. Your tracks, reads, fix plans, human-made receipts, and settings are stored locally on your device. We do not have user accounts or a central database of users. Your device’s model name is read on-device solely to print it on your receipt; it stays on your device.

What we do NOT collect

No name, email address, phone number, or account.
No location, contacts, photos, or microphone recording (audio is chosen from your files; Rune does not record).
No advertising identifier, no ads, and no third-party analytics or tracking SDKs.

Third parties

OpenAI — processes the submitted audio to generate the read, via its API. Audio sent through the API is not used to train its models.
Google Firebase — hosts our processing server and this page.
Google Play Billing — handles all purchases and subscriptions. We never see or store your payment details.

Notifications

If you turn on reminders, Rune schedules an optional local notification on your device to bring a track back for another read. This is handled entirely on your device — there is no push server and no message content leaves your phone.

Permissions

Internet — to send a track for a read and receive the feedback.
Notifications — only if you opt in to reminders.

Data retention & deletion

Submitted audio is not retained on our servers after a read is generated. Everything Rune keeps is on your device, and you are in control of it: use Settings → Delete my data to erase all local data at any time, or uninstall the app. To subscribe, cancel, or request a refund for a purchase, use your Google Play account.

Children

Rune is not directed to children under 13, and we do not knowingly collect personal information from children.

International processing

Audio you submit for a read may be processed on servers located in the United States. It is transmitted over an encrypted connection and not retained after the read.

Changes to this policy

We may update this policy from time to time. The “last updated” date above reflects the current version.

Contact

Questions about your privacy? Email hello@mrbooz.com.