Microsoft Bookings app allows you to schedule appointments and keep track of it. The app is now available for Android beta testers. However, you will need to own an Office 365 Business Premium subscription.

You’ll never miss an appointment. And you’ll have fewer no-shows

With the Bookings app you can:

• View and manage your calendar
• Create bookings or make changes to existing ones on-the-go
• See real-time availability of your staff members
• Respond to customers quickly and easily
• Quickly get directions to where your next booking is
• Manage your customer list

You can signup for the beta app here and download the app from Play Store.