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**Support Information**

This app is designed for specific users. (Buyout version)

It is a complete version that allows for error calculations spanning multiple days. (Note: It incorporates calendar information, including leap years.)

**Features and Usage Instructions:**

1. **Default Screen Usage**:

   - Use the default screen for on-site error calculations.

   - Note: This screen can calculate errors up to 23 hours, 59 minutes, and 59 seconds.

   - If the error spans more than one day, press the gear button in the upper right corner to open the settings screen and add the year, month, and day before calculating the error.

   - In the settings screen, you can choose your preferred terminology: 'Running Fast/Slow' or 'Early/Late'.

2. **Switching to Detailed Error Calculation**:

   - Press the switch button in the upper left corner to switch to the 'Error Calculation (Detailed)' page.

   - Note: Enter the error time and security camera display time identified on the default screen to get the corrected time.

   - This screen only allows for error calculations of less than one day.

3. **Advanced Error Calculation**:

   - Further screen switching enables error calculations spanning dates and years.

   - Note: It includes built-in calendar data to provide results accounting for leap years.

   - For example, it can calculate errors over a period of 7 years.

**Additional Information:**

Due to the annual license fee exceeding 10,000 yen paid to Apple, we apologize for the paid release.

Once purchased, the app can be used almost indefinitely.

You can continue using it even after changing devices as long as you use the same Apple ID.

There are no ads, and no data collection is performed, ensuring a safe user experience.

If you have any feature requests, please let us know in the reviews.

(Note: The direct input function for numbers was tested but removed due to recurring errors.)

**Contact Support**:

For inquiries, please email us at puchfumika@gmail.com.

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This text ensures that users can understand the purpose, features, and usage instructions of the app while providing essential support contact information.