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Version 1.2

Operator and privacy contact: 피수영 (Suyeong Pi)

Email: [email protected]

Effective date: October 19, 2026

This policy explains information processed by the VBT iPhone and Apple Watch apps and during customer support. It covers workout records, remote settings, optional usage analytics, optional error and crash diagnostics, and inquiries you send. Remote settings and analytics provisions apply to versions containing those features. Analytics starts only after separate optional consent.

1. Basic principles

VBT requires no separate registration or service account. Workout measurement and analysis take place on your devices. The app has no feature that sends workout records to an operator server or lets the operator view them remotely.

VBT has no advertisements and does not collect advertising IDs or IDFV, use ad personalization, or automatically track screens. The iPhone app uses Firebase Remote Config to receive feature and minimum-version settings. Google Analytics for Firebase receives usage information only with your consent. The Apple Watch app does not include Firebase SDKs. The operator receives information you choose to send by email.

2. Information and purposes

Workout information on your devices

The following is processed for recording, analysis and transfer between devices:

• Exercise settings and records: exercise, entered weight, countdown, recording start time and duration.
• Movement samples: Watch acceleration, attitude/orientation, gravity direction and sample timestamps.
• Analysis: rep counts, rep velocity, velocity changes, range of motion, power and estimated metrics when calculation conditions are met.
• Your edits: exercise and weight changes, excluded or restored reps.
• Record management: set transfer identifiers, transfer/save status, interruption reasons and identifiers preventing deleted records from being recreated.

Record identifiers prevent duplicates and are not advertising identifiers. This information transfers between your Watch and paired iPhone through WatchConnectivity. There is no separate service-account cloud sync or recovery.

Remote settings and optional analytics

• Remote settings: Firebase Remote Config delivers feature settings and minimum supported versions. Firebase installation identifiers and app version, OS and device information may be sent to Google. This communication supports app operation independently of analytics consent. Workout records are not sent.