This Privacy Policy explains how we collect, use, store, and protect your data. By using this App, you indicate that you have read, understood, and agreed to all the terms of this Privacy Policy.
Information We Collect
This App does not require account registration and does not collect any personally identifiable information, including but not limited to your name, email address, phone number, location, contacts, photos, or health data.
The App only generates and stores the following function-related data locally on your device:
1. Training Settings Data
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Duration of each training interval (seconds)
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Duration of each rest interval (seconds)
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Number of training sets
This data is used solely to remember your last training configuration, so you can quickly start the next session.
2. Training Record Data
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Training completion time (date and time)
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Total training duration (seconds from start to finish)
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Actual active workout time during the session (seconds)
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Total number of completed sets
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Duration of each training set (seconds)
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A randomly generated record ID (UUID, used only to distinguish records locally and not linked to your real identity)
3. In-App Statistics Data
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A counter used to display progress indicators (such as the number of completed effective workouts) on the home screen, for local progress visualization only.
All of the above data is stored locally on your device using the system-provided UserDefaults mechanism and are never uploaded to any server.
2. How We Use This Information
The collected information is used only for the following purposes:
1. Providing Core Features
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Running countdown timers and switching between states such as Preparation / Training / Rest / Completion based on your settings;
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Displaying session statistics (total time, completed sets, etc.) on the completion screen;
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Showing your past training history.
2. Improving User Experience
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Remembering your most recent training configuration for quick reuse;
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Encouraging consistent training through local progress indicators (such as progress counters).
We do not use this information for advertising, user profiling, or cross-app tracking.
3. Data Storage and Retention
1. Storage Location
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All training settings, training records, and progress counters are stored only on your device, managed by iOS via UserDefaults;
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We do not store any of your data on our own servers or on third-party servers.
2. Retention Period
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Training records are kept locally for long-term access, so you can review your history;
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To manage storage usage, the App retains only a limited number of recent records (e.g., up to 1,000 entries). Older records are automatically removed locally.
3. Data Deletion
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You may delete all locally stored data by uninstalling the App;
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If a future version adds an in-app “Clear Training Records” feature, this policy will be updated accordingly.
4. Data Sharing and Third Parties
1. No Data Sharing
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This App does not share, sell, or rent your training data or any other information to third parties.
2. No Third-Party Tracking SDKs
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The App does not integrate third-party advertising SDKs, analytics/statistics SDKs, or social login SDKs;
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No device identifiers, advertising identifiers, or other tracking-related identifiers are sent to third parties.