If you can see in Appbot that your rating count is dropping, there are a few common causes that we recommend investigating.
Check the rating count in the relevant app store
Go to the app store and check that the number matches what you see at the top of the Ratings page in Appbot. Your overall ratings count in the app store will look something like this:
Ratings can be updated or deleted
The reviewer can change or delete their rating at anytime in the app stores. Also the App Stores has a moderation system for ratings, whereby if they determine ratings are fraudulent/spam/invalid/etc. they may remove them. They also may reverse that decision and add them back. This causes a fluctuation where your ratings can go up and down. If you reload the page, we fetch data from the App Store again, and the data may change in the mean time.
Review the Ratings Over Time for Rating Count
For more information on Ratings…
Check out these resources on Ratings, how to interpret them, how to use the Appbot tools, and how ratings and reviews are different.
You can see our experience with the iOS ratings prompt here.