Facebook has a call-to-action feature that helps Pages drive business objectives. These call-to-action buttons link to any destination on or off Facebook that aligns with a business’s goals.
Page admins can select from a group of call-to-action buttons:
For services or apps, you should use the "Watch Video" one. Video is flooding the online marketplace and is quickly becoming a marketing standard to convey your message. If you don't have a video yet, visit SSW's Video Services pages to make a creative and engaging video for your company.
✅ Figure: Good Example - Take the Facebook visitor to watch your video