Privacy Policy

01

Controller

The controller responsible under the General Data Protection Regulation (GDPR) and other applicable privacy laws is:

If you require a postal address for formal correspondence or legal notices under applicable law, please request it using the contact details above.

02

What Data Is Collected?

We do not ask you to create an account and we do not collect contact details, contacts, photos, or payment information through the app. Lip Sync is a measurement tool: it generates sync reference signals and evaluates timing on your device. We do not build location history or track where you go.

Data stored locally on your device may include in-app settings (for example frame rate, tone, precision mode, QR anchor preference, and Audio Only mode) and a local measurement history of recent results. This information stays on your phone or tablet and is not synced to our servers.

Audio / video measurement (Camera Measure): when you use features that analyse input from your device’s camera or microphone, audio and video are processed only on your device for live measurement. The app does not persist recordings of that input, does not add it to your photo library, and does not transmit camera or microphone streams to us. Any buffering or intermediate values exist only temporarily in device memory as needed for the measurement.

Audio Only mode (iOS): when enabled on the pattern device, Lip Sync outputs an audio reference (chirp and UTC timestamp) instead of flash and QR. A second device can measure delay through the audio signal path (for example set microphone → console PA) using the microphone only — no camera access is required for that measurement flow. Audio is processed in real time on device and is not recorded or uploaded by us.

Location (iOS, Audio Only / audio-path measurement): the app may request location permission to read GPS satellite time for UTC synchronization between devices. Only the satellite timestamp and signal quality are used internally to improve timing accuracy outdoors (typically ±~2 ms vs network time). Your geographic coordinates are not stored, displayed on a map, shared with us, or used to track you over time. Indoors, the app uses network time (NTP) instead. Location access is not used for maps or location history.

App Store purchases (iOS): optional in-app purchases (for example AI Mode) are processed by Apple via StoreKit. We do not collect or store payment card details. Apple provides purchase entitlement status to the app.

App update check (iOS): on launch, the app may contact Apple’s iTunes Lookup API with the app bundle identifier to check whether a newer App Store version is available. No personal account data is sent.

Android only (Google Play build): if the app crashes or encounters a serious error, diagnostic information such as stack traces, device model, operating-system version, and app version may be transmitted to Google Firebase Crashlytics. This is used solely to diagnose and fix stability issues. We do not use Crashlytics for advertising or user profiling, and the iOS App Store build does not include this SDK.

03

Legal Bases (GDPR)

When you use Lip Sync, we do not receive measurement or account data on servers we operate; core processing happens on your device. In-app preferences and measurement history stored locally are not transmitted to us.

On Android, sending anonymous crash diagnostics to Firebase Crashlytics is based on our legitimate interest in maintaining a stable app (Art. 6(1)(f) GDPR). You may object to this processing where applicable by contacting us (Section 01); disabling network access or uninstalling the app stops further crash reports.

On iOS, when Audio Only or audio-path measurement uses GPS satellite time, processing is based on our legitimate interest in providing accurate measurement functionality (Art. 6(1)(f) GDPR). You can deny location permission; the app will fall back to network time (NTP), which may reduce outdoor accuracy.

If you contact us by email, we process the personal data you provide (typically your email address and the content of your message) to respond to your inquiry. The legal bases are our legitimate interest in handling user requests (Art. 6(1)(f) GDPR) and, where applicable, steps taken at your request prior to entering into a contract (Art. 6(1)(b) GDPR).

04

System Permissions

Lip Sync may request access to your device camera and microphone where needed for on-device measurement (for example Camera Measure). Granting access is optional; without it, those features cannot run. Audio Only mode and audio-path measurement use the microphone (and device audio output) but do not require the camera.

On iOS, when Audio Only or audio-path measurement is active, the app may request location permission to read GPS satellite time for UTC synchronization. Only the satellite timestamp is used — not your position on a map. You can deny location; the app uses network time (NTP) instead.

On Android, the app may also use vibration for short haptic feedback when starting or stopping the sync pattern. This does not access personal data.

Camera and microphone input is used only for real-time analysis on your device. The app does not save recordings of that input, does not upload or share it with us, and does not use it for advertising. If any data is held briefly in memory to perform the measurement, it is temporary only and is not stored long-term on our systems.

You can withdraw permissions at any time in your device’s system settings:

• iOS: Settings → Privacy & Security → Camera / Microphone / Location
• Android: Settings → Apps → Lip Sync → Permissions

Revoking camera access disables flash-based Camera Measure; revoking microphone access disables audio detection and Audio Only measurement. Uninstalling the app removes locally stored settings and measurement history.

05

Sharing Data with Third Parties

We do not sell your data. Measurement results, camera/microphone streams, and in-app settings are not shared with us or with advertisers.

Android (Google Play): the app uses Google Firebase Crashlytics as a processor to receive anonymous crash and error diagnostics so we can fix defects. Google may process this information on servers outside your country. Crashlytics is not used for ads or cross-app tracking. See Google’s privacy policy and Firebase documentation for details (Section 08).

Lip Sync does not use:

• Location history, maps, or tracking your movements over time
• Advertising networks or ad tracking SDKs
• Marketing or product-analytics services (for example Mixpanel or Firebase Analytics)
• Cloud sync of your measurement history to our servers
• Social network SDKs

We do not transfer personal data that we receive directly from you (for example by email) to third parties except where required by law or needed to respond to your request.

06

Data Storage

Lip Sync stores in-app settings (for example frame rate, tone, precision mode, QR anchor preference, and Audio Only mode) and a rolling local measurement history on your device. On Android, this uses on-device app storage (DataStore); on iOS, equivalent local app storage is used. This data is accessible only to you and is not synced to our servers or a cloud account we operate.

You can clear measurement history inside the app where the feature is offered. Uninstalling the app deletes local settings and history. Crash diagnostics already sent to Firebase Crashlytics before uninstall are retained by Google according to its retention rules.

07

Children and Minors

Lip Sync is not directed at children under the age of 13. Since the app does not collect any personal data, there is no particular risk in this regard. Nevertheless, we encourage parents to supervise their children's use of the app.

08

App Stores, Google Play & Platform Services

Lip Sync is distributed via the Apple App Store and Google Play (Android package: com.audioimpact.lipsync). Apple and Google may collect their own data in connection with downloads, purchases, fraud prevention, and store services. That collection is governed solely by each provider’s privacy policy, not this one.

Google Play Data safety: our Play Console disclosures describe app permissions and data practices, including camera and microphone use for measurement, local storage, and crash diagnostics on Android. On iOS, App Store privacy labels and this policy describe camera, microphone, location (GPS time for Audio Only), and StoreKit purchases. If anything in the store listing differs from this page, treat the Play Console / App Store disclosures at the time of download together with this Privacy Policy.

Third-party services used by the app:

• Google Firebase Crashlytics — Android only; anonymous crash and error reports
• Apple App Store / Google Play — distribution and store infrastructure
• Apple StoreKit — iOS in-app purchases (processed by Apple)
• Apple iTunes Lookup API — iOS app version check (bundle ID only)

09

Your Rights (GDPR)

Since Lip Sync does not collect or process personal data on our systems through the app itself, most GDPR rights (access, rectification, erasure, portability) are not practically applicable to app-generated data held only on your device. You do however have the following options:

• Clear measurement history in the app or uninstall the app — this deletes local settings and history on your device
• Contact us at any time with questions (see Section 01 for contact details)
• For crash data processed by Google Firebase Crashlytics on Android, you may also review Google’s privacy tools and policies (Section 08)

If we process personal data you send us directly (for example by email), you may have the rights provided under Articles 15 to 22 GDPR (including access, rectification, erasure, restriction of processing, data portability, and objection), where applicable. You may exercise these rights by contacting us using the details in Section 01.

You have the right to lodge a complaint with a supervisory authority, in particular in the member state of your habitual residence, place of work, or the place of the alleged infringement (Art. 77 GDPR). The supervisory authority for Austria is the Austrian Data Protection Authority (Datenschutzbehörde): dsb.gv.at.

We do not use automated decision-making, including profiling, that produces legal effects concerning you or similarly significantly affects you within the meaning of Art. 22 GDPR in connection with Lip Sync.

10

California Residents (CCPA / CPRA)

If you are a resident of California, the California Consumer Privacy Act (CCPA) and the California Privacy Rights Act (CPRA) may grant you additional rights regarding personal information.

Lip Sync does not sell personal information (as defined under the CCPA/CPRA). We do not use or disclose sensitive personal information for purposes that would trigger a right to limit such use under the CPRA in connection with the app. On Android, anonymous crash diagnostics may be shared with Google Firebase Crashlytics as a service provider for app stability. For requests relating to information you voluntarily provide to us (for example in an email), you may contact us at privacy@audioimpact.at.

11

Data Security

Measurement and sensor data are processed on your device and are not transmitted to servers we operate. On Android, only anonymous crash diagnostics may be sent to Google Firebase Crashlytics over encrypted connections. All other measurement processing takes place locally, protected by the security architecture of iOS or Android.

12

Changes to This Policy

We reserve the right to update this Privacy Policy as needed. Material changes will be indicated by an updated date at the top of this page. We recommend checking this page occasionally.

13

Contact

If you have any questions or comments about this Privacy Policy, feel free to reach out at any time: