Last Updated: April 17, 2026 Effective Date: March 17, 2026

Controller: Donglong Studio (“we”, “us”, “our”) – developer of the “reUP” mobile application (“App”)

1. Overview 1.1 This Privacy Policy explains how we handle and protect your personal data and other information when you use the App. Please read it carefully before using reUP. 1.2 reUP mainly relies on on-device storage and Apple’s system services such as iCloud and Apple Health (HealthKit). We do not integrate any third‑party SDKs and do not run our own backend servers. We do not use your training data for advertising, tracking, or profiling across apps. 1.3 Unless otherwise stated, “personal data” means any information relating to an identified or identifiable natural person, and “processing” means operations such as collection, storage, use, and deletion. 1.4 By downloading, accessing, or using the App, you acknowledge that you have read and understood this Policy. If you do not agree, please stop using the App and uninstall it.
2. Who We Are Name: Donglong Studio Privacy Contact Email: [email protected] You can contact us at this email address if you have any questions, concerns, or requests regarding privacy and data protection.
3. Data We Process Given that we do not run our own servers and do not integrate third‑party SDKs, we mainly process the following categories of data on your device, and via Apple’s ecosystem:

3.1 Information you provide

Avatar (local photo or preset icons) Nickname Age Weight and weight unit (kg/lb) Training goals and preferences (per‑session goal, daily goal, etc.)

3.2 Training data generated by your use of the App

Per‑session training logs (time, rep count, cadence, etc.) Historical statistics (total reps, streak days, best single day, etc.) Achievement and badge unlock status App settings directly related to your training (counting mode, visual/audio mode, reminder settings, etc.)

3.3 Apple Health (HealthKit) data (optional) If you explicitly enable Apple Health integration and grant permissions:

We may read from Apple Health: weight and certain health metrics necessary for estimating calories burned; We may write to Apple Health: workout duration, workout type, push‑up counts, and estimated calories.

We will not read unrelated health data, and we do not use Apple Health data for advertising or profiling.

3.4 iCloud sync data (optional) If you enable iCloud sync in system settings or within the App, certain data (for example, training history, achievements, and preferences) may be synchronized to your personal iCloud account to keep your experience consistent across Apple devices. These data are encrypted and stored by Apple on its servers, governed by Apple’s own terms and privacy policy. We have no access to your iCloud credentials.

3.5 Device permissions and transient data To provide core counting features, the App may locally process:

Camera input: real‑time images for face/movement detection in visual mode. Raw video frames are processed on‑device only; they are not uploaded or persistently stored by us. Microphone input: audio signal used in audio mode to detect exhale patterns. Raw audio is processed locally; we do not record or upload audio files. Notification settings/tokens: used solely to trigger training reminders via the system notification framework, not for advertising.

3.6 TrueDepth API and Face Data (optional) If you enable camera-based counting features on supported devices, we may use Apple’s TrueDepth API for real‑time face tracking during push‑up training. This feature is used to verify body movement and improve repetition counting accuracy during the workout session. Face tracking is processed on‑device in real time; we do not upload or store your face data.

We do not intentionally collect any personal data beyond what is necessary to operate the App’s features.

1. Purposes and Legal Bases Depending on where you live, data protection laws such as the GDPR may require us to state our legal bases for processing:

4.1 Providing and maintaining the core services