Send push notifications to your mobile device as reminder to clock in and/or clock out on a per user basis. Employees remembering to clock in and/or clock out is one of our biggest problems. 

I am aware there are shift reminders as early as 30 minutes before a shift, but a person can easily forgot to clock in because they aren't yet at work. And it does not act the same as a notification on your mobile device at the exact time you are supposed to clock in. Users could modify the reminder settings themselves; the day(s) of the week and the times they want to be reminded.

For example; if their shift is 8am-4:30pm Monday-Friday. The user could set a clock in notification to remind them 5/10/15/ minutes before 8am and a clock out notification at 4:30pm, Monday-Friday or Monday, Wednesday, and Thursday only if desired. Whatever the user would prefer.

OR a very simplified version of this could be to send a push notification to their mobile device at time of or 5/10/15 minutes before their scheduled shift, reminding them to clock in, and another notification at the end time of their scheduled shift reminding them to clock out.