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Screenshots of Shift Calendar
Description of Shift Calendar (since 2013)

This app is designed for all hard-working shift workers. You can add customized shifts.


When editing your shifts, you can select a range of days (rather than one day) to set. Thus, you can set your schedule (roster, planner) in few seconds. Then, you can send the screenshot of your calendar to friends by clicking one button.



If you have any suggestion/question, welcome to send an email to me. E-mail: kigurumi.shia@gmail.com

Developer: Chih-Yu Lin




Permission Description:


(1) Storage : With this permission, you can export the screenshot of your calendar created by clicking the 'Share' button.



(2) Run at startup (execute programs after boot completed): The alarm clock will be restarted automatically after rebooting. This permission is required to achieve this goal.

(3) Read Calendar: The events from other calendar apps will be shown in the Note page.

(4) Control Vibration: This is used for the alarm clock function.

(5) Notification: This is used for the alarm clock function so that the app can show the notification when the alarm ringing.

(6) FOREGROUND_SERVICE, USE_FULL_SCREEN_INTENT, SCHEDULE_EXACT_ALARM, WAKE_LOCK: This is used for the alarm clock function so that a dialog can be shown when the alarm ringing.

Version history Shift Calendar (since 2013)
New in Shift Calendar 1.78.6
(1) Remove some unused code.
(2) Supports Android 13. Note that you have to enable Notification to make sure the alarm can work normally.
(3) If some information has been hidden, a reminder message will appear on the note page or the statistics page.
New in Shift Calendar 1.78.5
(1) Holiday information has been updated.
(2) Supports Android 13. Note that you have to enable Notification to make sure the alarm can work normally.
(3) If some information has been hidden, a reminder message will appear on the note page or the statistics page.
New in Shift Calendar 1.78.2
(1) Attempting to fix some of the crash issues.
(2) Supports Android 13. Note that you have to enable Notification to make sure the alarm can work normally.
(3) If some information has been hidden, a reminder message will appear on the note page or the statistics page.
New in Shift Calendar 1.78.1
(1) If you have downloaded the 2023 holidays, the 2024 holidays will added automatically.
(2) Supports Android 13. Note that you have to enable Notification to make sure the alarm can work normally.
(3) If some information has been hidden, a reminder message will appear on the note page or the statistics page.
New in Shift Calendar 1.77.1
(1) Improve Turkish translation. If there are any issues with the translation, you can switch back to English through Menu > Setting > System Setting > Language.
(2) The widget size has been adjusted slightly to fit some phones.
(3) If some information has been hidden, a reminder message will appear on the note page or the statistics page.
New in Shift Calendar 1.77
(1) Added Turkish translation. If there are any issues with the translation, you can switch back to English through Menu > Setting > System Setting > Language.
(2) The widget size has been adjusted slightly to fit some phones.
(3) If some information has been hidden, a reminder message will appear on the note page or the statistics page.
New in Shift Calendar 1.76.9
(1) Holiday information has been updated.
(2) The widget size has been adjusted slightly to fit some phones.
(3) If some information has been hidden, a reminder message will appear on the note page or the statistics page.
New in Shift Calendar 1.76.5
(1) Philippine peso has been added.
(2) The widget size has been adjusted slightly to fit some phones.
(3) If some information has been hidden, a reminder message will appear on the note page or the statistics page.
New in Shift Calendar 1.76.3
(1) The UI problem of the "Same as the current month" has been fixed.
(2) The widget size has been adjusted slightly to fit some phones.
(3) If some information has been hidden, a reminder message will appear on the note page or the statistics page.
New in Shift Calendar 1.76.1
(1) The new calendar style "Same as the current month" is added.
(2) The widget size has been adjusted slightly to fit some phones.
(3) If some information has been hidden, a reminder message will appear on the note page or the statistics page.
New in Shift Calendar 1.75.8
(1) The widget not showing problem has been fixed.
(2) You can change the text color for the Today.
(3) If some information has been hidden, a reminder message will appear on the note page or the statistics page.
New in Shift Calendar 1.75.3
(1) You can decide whether to use the system alarm clock.
(2) If some information has been hidden, a reminder message will appear on the note page or the statistics page.
(3) You can set whether the alarm clock dialog should be dismissed when touched outside.
New in Shift Calendar 1.73.11
(1) On the statistics page, the note content can be selected and copied.
(2) If some information has been hidden, a reminder message will appear on the note page or the statistics page.
(3) You can set whether the alarm clock dialog should be dismissed when touched outside.
New in Shift Calendar 1.73.6
(1) Holiday information for some countries has been updated.
(2) You can set whether the alarm clock dialog should be dismissed when touched outside.
New in Shift Calendar 1.73.5
(1) Some bugs have been fixed..
(2) You can set whether the alarm clock dialog should be dismissed when touched outside.
New in Shift Calendar 1.73.2
(1) Some bugs have been fixed..
(2) You can set whether the alarm clock dialog should be dismissed when touched outside.
New in Shift Calendar 1.73.1
(1) Adjust the user interface slightly.
(2) You can set whether the alarm clock dialog should be dismissed when touched outside.
New in Shift Calendar 1.72.11
(1) You can set whether the alarm clock dialog should be dismissed when touched outside.
(2) You can set more than one pattern to be 'Auto Repeat'. However, if the periods of two patterns are overlapped, you may get unexpected results.
(3) The backup/recover function supports scoped storage introduced in Android 10. Note that the backup data will be deleted when uninstalling. Thus, it is suggested that you also back up data to Google Drive.
New in Shift Calendar 1.72.10
(1) The wake lock problem for the alarm clock function has be fixed.
(2) You can set more than one pattern to be 'Auto Repeat'. However, if the periods of two patterns are overlapped, you may get unexpected results.
(3) The backup/recover function supports scoped storage introduced in Android 10. Note that the backup data will be deleted when uninstalling. Thus, it is suggested that you also back up data to Google Drive.
New in Shift Calendar 1.72.9
(1) You can set whether a full-screen dialog should be shown when the alarm clock rings.
(2) You can set more than one pattern to be 'Auto Repeat'. However, if the periods of two patterns are overlapped, you may get unexpected results.
(3) The backup/recover function supports scoped storage introduced in Android 10. Note that the backup data will be deleted when uninstalling. Thus, it is suggested that you also back up data to Google Drive.
New in Shift Calendar 1.72.8
(1) Minor revision for the alarm clock function.
(2) You can set more than one pattern to be 'Auto Repeat'. However, if the periods of two patterns are overlapped, you may get unexpected results.
(3) The backup/recover function supports scoped storage introduced in Android 10. Note that the backup data will be deleted when uninstalling. Thus, it is suggested that you also back up data to Google Drive.
New in Shift Calendar 1.72.6
(1) The note disappearing problem has been solved.
(2) You can set more than one pattern to be 'Auto Repeat'. However, if the periods of two patterns are overlapped, you may get unexpected results.
(3) The backup/recover function supports scoped storage introduced in Android 10. Note that the backup data will be deleted when uninstalling. Thus, it is suggested that you also back up data to Google Drive.
New in Shift Calendar 1.72.3
(1) Fix the crash problem happened when setting "Hours Worked" larger than 24.
(2) You can set more than one pattern to be 'Auto Repeat'. However, if the periods of two patterns are overlapped, you may get unexpected results.
(3) The backup/recover function supports scoped storage introduced in Android 10. Note that the backup data will be deleted when uninstalling. Thus, it is suggested that you also back up data to Google Drive.
New in Shift Calendar 1.72.2
(1) The password function has been fixed.
(2) You can set more than one pattern to be 'Auto Repeat'. However, if the periods of two patterns are overlapped, you may get unexpected results.
(3) The backup/recover function supports scoped storage introduced in Android 10. Note that the backup data will be deleted when uninstalling. Thus, it is suggested that you also back up data to Google Drive.
New in Shift Calendar 1.72.1
(1) Provide more snooze options.
(2) You can set more than one pattern to be 'Auto Repeat'. However, if the periods of two patterns are overlapped, you may get unexpected results.
(3) The backup/recover function supports scoped storage introduced in Android 10. Note that the backup data will be deleted when uninstalling. Thus, it is suggested that you also back up data to Google Drive.
New in Shift Calendar 1.72
(1) This app starts to target Android 11.
(2) You can set more than one pattern to be 'Auto Repeat'. However, if the periods of two patterns are overlapped, you may get unexpected results.
(3) The backup/recover function supports scoped storage introduced in Android 10. Note that the backup data will be deleted when uninstalling. Thus, it is suggested that you also back up data to Google Drive.
New in Shift Calendar 1.71.9
(1) The value of "Hours Worked" can be over 24.
(2) You can set more than one pattern to be 'Auto Repeat'. However, if the periods of two patterns are overlapped, you may get unexpected results.
(3) The backup/recover function supports scoped storage introduced in Android 10. Note that the backup data will be deleted when uninstalling. Thus, it is suggested that you also back up data to Google Drive.
New in Shift Calendar 1.71.8
(1) When setting "Repeat from" and "Repeat until", you can find an "Unlimited" button.
(2) You can set more than one pattern to be 'Auto Repeat'. However, if the periods of two patterns are overlapped, you may get unexpected results.
(3) The backup/recover function supports scoped storage introduced in Android 10. Note that the backup data will be deleted when uninstalling. Thus, it is suggested that you also back up data to Google Drive.
New in Shift Calendar 1.71.7
(1) Add the 'Clock Format' setting.
(2) You can set more than one pattern to be 'Auto Repeat'. However, if the periods of two patterns are overlapped, you may get unexpected results.
(3) The backup/recover function supports scoped storage introduced in Android 10. Note that the backup data will be deleted when uninstalling. Thus, it is suggested that you also back up data to Google Drive.
New in Shift Calendar 1.71.6
(1) You can set more than one pattern to be 'Auto Repeat'. However, if the periods of two patterns are overlapped, you may get unexpected results.
(2) The backup/recover function supports scoped storage introduced in Android 10. Note that the backup data will be deleted when uninstalling. Thus, it is suggested that you also back up data to Google Drive.
New in Shift Calendar 1.71.5
(1) Thai Baht (the currency of Thailand) is supported now.
(2) The backup/recover function supports scoped storage introduced in Android 10. Note that the backup data will be deleted when uninstalling. Thus, it is suggested that you also back up data to Google Drive.
New in Shift Calendar 1.71.3
(1) The backup/recover function supports scoped storage introduced in Android 10. Note that the backup data will be deleted when uninstalling. Thus, it is suggested that you also back up data to Google Drive.
(2) Provide a temporary solution to the lock screen problem of alarm clock for Android 10. Please allow showing alert notification on lockscreen. It is suggested that you should also use system's alarm clock for the second alarm clock.
New in Shift Calendar 1.71.2
(1) You can go the power optimization setting page quickly in the alarm clock setting page.
(2) Provide a temporary solution to the lock screen problem of alarm clock for Android 10. Please allow showing alert notification on lockscreen. It is suggested that you should also use system's alarm clock for the second alarm clock.
(3) You can quickly back up data to Google Drive through Drive app in the main page of the backup/recover function.
New in Shift Calendar 1.71
(1) You can use red text to replace the holiday icon now.
(2) Provide a temporary solution to the lock screen problem of alarm clock for Android 10. Please allow showing alert notification on lockscreen. It is suggested that you should also use system's alarm clock for the second alarm clock.
(3) You can quickly back up data to Google Drive through Drive app in the main page of the backup/recover function.
New in Shift Calendar 1.70.10
(1) The default asterisk color option is back. However, it is suggested changing the asterisk color in the note page.
(2) Provide a temporary solution to the lock screen problem of alarm clock for Android 10. Please allow showing alert notification on lockscreen. It is suggested that you should also use system's alarm clock for the second alarm clock.
(3) You can quickly back up data to Google Drive through Drive app in the main page of the backup/recover function.
New in Shift Calendar 1.70.8
(1) The number of offline friends is unlimited now.
(2) Provide a temporary solution to the lock screen problem of alarm clock for Android 10. Please allow showing alert notification on lockscreen. It is suggested that you should also use system's alarm clock for the second alarm clock.
(3) You can quickly back up data to Google Drive through Drive app in the main page of the backup/recover function.
New in Shift Calendar 1.70.6
(1) Provide a temporary solution to the lock screen problem of alarm clock for Android 10. Please allow showing alert notification on lockscreen. It is suggested that you should also use system's alarm clock for the second alarm clock.
(2) The value of daily subsidy can be negative now.
(3) You can quickly back up data to Google Drive through Drive app in the main page of the backup/recover function.
New in Shift Calendar 1.70.5
(1) The value of daily subsidy can be negative now.
(2) You can quickly back up data to Google Drive through Drive app in the main page of the backup/recover function.
(3) You can set different asterisk colors for different dates.
New in Shift Calendar 1.70.3
(1) You can quickly back up data to Google Drive through Drive app in the main page of the backup/recover function.
(2) When you try to change the 'Background Color of Off', you can choose 'Default' now.
(3) You can set different asterisk colors for different dates.
New in Shift Calendar 1.70
(1) The Drive Android API will be deprecated soon. This version migrates related codes to Drive REST API. If you encounter problems when using the backup/recover function, you can try to sign out first, and then sign in again.
(2) You can set different asterisk colors for different dates.
(3) Holidays can be shown on friends' calendars now. Note that you should enable this function from the holiday page.
New in Shift Calendar 1.69
(1) You can set different asterisk colors for different dates.
(2) Adaptive icon is available for phones higher than Android 8.0.
(3) Holidays can be shown on friends' calendars now. Note that you should enable this function from the holiday page.
New in Shift Calendar 1.68.11
(1) Adaptive icon is available for phones higher than Android 8.0.
(2) Holidays can be shown on friends' calendars now. Note that you should enable this function from the holiday page.
(3) If the app will crash while entering the backup/recover page, you can try the following solution. Menu > Setting > System Setting > Backup/Recover > (Select 'SD Card').
New in Shift Calendar 1.68.6
(1) Provide a button on the note page to enable Calendar permission quickly.
(2) If the app will crash while entering the backup/recover page, you can try the following solution. Menu > Setting > System Setting > Backup/Recover > (Select 'SD Card').
New in Shift Calendar 1.68.5
(1) If the app will crash while entering the backup/recover page, you can try the following solution. Menu > Setting > System Setting > Backup/Recover > (Select 'SD Card'). I will fix this problem as soon as possible.
(2) Adjust the layout of the backup/recover page so that the backup list can be scrolled easily.
New in Shift Calendar 1.68.3
(1) Now, you can have 20 offline friends.
(2) Adjust the layout of the backup/recover page so that the backup list can be scrolled easily.
(3) Update Hungarian translation.
New in Shift Calendar 1.68.1
(1) This app does not need Contact permission anymore. However, you have to sign in Google before using related functions.
(2) You can remove all payday icons quickly from Setting > System Setting.
New in Shift Calendar 1.67.7
(1) You can remove all payday icons quickly from Setting > System Setting.
(2) You can ignore the alarm clocks for second shifts from Setting > Calendar Setting.
New in Shift Calendar 1.67.6
(1) For Android 8.0 and above, the badge will not be shown when the alarm notification is shown.
(2) The backup/recover bug (via Google Drive) has been fixed. The backup/recover function is updated based on the new version of Google Drive API. You have to sign in again. Your data are not lost.
(3) The cloud function is available for non-EEA users now. I will work hard to make the cloud function GDPR compliance soon.
New in Shift Calendar 1.67.5
(1) The widget bug happened on phones with Android 8.0 has been fixed.
(2) The cloud function is available for non-EEA users now. I will work hard to make the cloud function GDPR compliance soon.
(3) The backup/recover function is updated based on the new version of Google Drive API. You have to sign in again. Your data are not lost.
New in Shift Calendar 1.66.8
(1) Fix the Start/End dates bug for pattern editor.
(2) Update Portuguese language again and add Indonesia currency.
New in Shift Calendar 1.66.7
(1) Fix the pattern name bug. If your pattern name is incorrect, you can give the pattern a new name manually.
(2) Clean useless data when exiting program.
New in Shift Calendar 1.66.5
(1) For Android M and above, a button is provided for disabling power optimization in Alarm Clock Customized Setting page. You can disable power optimization for Shift Calendar quickly now. This button will be shown only when you do not disable power optimization.(2) A button is added in the cloud account setting page for enabling the Contact permission quickly.
New in Shift Calendar 1.66.3
(1) Update Portuguese language. If the translation has problems, welcome to report problems to me. You can change language from Menu > Setting > System Setting.(2) Provide 'Do not show anything' option in 'The shifts of previous and next month' setting.(3) When sharing the calendar by sending the screenshot via some apps, your original calendar will be sent even you have edited a new calendar. This problem has been fixed.
New in Shift Calendar 1.66
(1) Update Indonesian language (Bahasa Indonesia). If the translation has problems, welcome to report problems to me.(2) Provide 'Do not show anything' option in 'The shifts of previous and next month' setting.(3) When sharing the calendar by sending the screenshot via some apps, your original calendar will be sent even you have edited a new calendar. This problem has been fixed.
New in Shift Calendar 1.65.7
(1) Fix the screenshot bug for Android Oreo.(2) If you have added holidays for 2017 to the calendar, holidays for 2018 will be added automatically now. You can also remove/add holidays manually.
New in Shift Calendar 1.65.5
It seems that the holiday auto reload function has bugs. This function will suspend temporally.
New in Shift Calendar 1.64.5
(1) Fix the cloud account problem.(2) Fix the payday auto repeat problem.
New in Shift Calendar 1.64.2
(1) Fix the crash problem of the cloud account page.(2) Fix the payday auto repeat problem.
New in Shift Calendar 1.64
Version 1.64When you create a shift pattern, the shifts will be stored now. If you want to change the shifts of a pattern, you can edit shifts (from the start date to the end date of the pattern) in the main page first, and then go to the shift pattern editor page. You will find a button called 'Reread from the calendar'. Click it and then the shifts will be reset.
New in Shift Calendar 1.63
Version 1.63(1) You can put payday/holiday icons on top (Menu > Setting > UI Setting), when you set the shift background to opaque.(2) You can choose whether to show 'Goto'/'Today' buttons. (Menu > Setting > UI Setting)(3) A new alarm clock dialog is provided. Note that if you want to use the alarm clock, don't enable power optimization for Shift Calendar.
New in Shift Calendar 1.62.3
Version 1.62.3(1) Add Action Bar for some pages.(2) The currency of LKR has been added.
New in Shift Calendar 1.58
(1) For Android M and above, a button is provided for disabling power optimization in Alarm Clock Customized Setting page. You can disable power optimization for Shift Calendar quickly now. This button will be shown only when you do not disable power optimization.(2) A button is added in the cloud account setting page for enabling the Contact permission quickly.
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