Privacy Policy
Last updated: May 25, 2026
AI Voice Changer: Offline ("the App") is published by Bulpara Inc ("we", "us", "our"). This policy describes how we collect, use, and protect information when you use the App.
1. Voice Recordings & Audio Files
- Your voice never leaves your device. All voice transformation runs on-device using audio processing bundled inside the App.
- The App does not upload, transmit, stream, or store your recordings on our servers. We have no servers that hold your audio.
- Original and transformed files live in the App's sandbox on your iPhone, and are removed when you delete the App or the corresponding history entry.
- If you choose to share a transformed file via the iOS share sheet (TikTok, Messages, Mail, AirDrop, Files, etc.), you control where it goes — we do not see it.
2. Data We Store Locally
- Transform history: File paths, durations, the voice preset used, and timestamps for each transform. Stored locally via SwiftData.
- Custom voices (Premium): Your saved pitch, formant, and effect settings. Stored locally on your device.
- Preferences: Default voice, default export format, theme, and notification settings.
- Daily usage counter: A local counter that resets at midnight to enforce the free-tier daily limit. No counter data is transmitted off-device.
- Purchase status: Subscription state is managed by Apple's StoreKit and cached locally for feature gating.
3. Permissions We Request
- Microphone: Only when you tap "Record" to capture a new clip in the App. We do not record in the background or while the App is closed.
- Files / Voice Memos: Only the audio file you explicitly pick is imported into the App's sandbox. We do not enumerate or scan your library.
- Notifications (optional): Used only to notify you when a longer clip finishes processing. You can disable this in iOS Settings at any time.
4. Third-Party Services
The App uses the following third-party services:
- Apple App Store / StoreKit: Manages subscriptions and purchases. Governed by Apple's privacy policy.
- Google AdMob (free tier only): Displays banner and interstitial ads to free-tier users. AdMob may collect device identifiers for ad personalization. Your audio recordings and transformed files are never shared with AdMob. See Google's Privacy Policy.
Premium subscribers see no ads and trigger no AdMob requests.
5. Data Storage and Security
- All recordings, transformed files, custom voices, history, and preferences are stored locally on your device.
- No audio data or device-identifiable content is transmitted to or stored on our servers. We have no servers that hold user audio.
- Purchase verification uses Apple's secure StoreKit framework.
- The App's core voice transformation works completely offline.
6. Data Sharing
We do not sell your personal data. We do not share your audio recordings with any third party. AdMob may collect device-level data for ad personalization (free tier only); your audio content is excluded.
7. Your Rights
You can:
- Delete individual transforms from the History tab inside the App
- Delete the App to remove all local recordings, custom voices, history, and preferences
- Disable Notifications and Microphone permission from iOS Settings at any time
- Request information about data handling by contacting us at privacy@bulpara.com
8. Children's Privacy
The App is rated 4+ and is not intended to collect data from children under 13. Because the App does not collect personal data, this is enforced by design.
9. Changes to This Policy
We may update this policy from time to time. Changes will be posted on this page with an updated "Last updated" date.
10. Contact Us
If you have questions about this privacy policy, contact us at: