Metrics for Instagram (Photos, Videos, Carousels)
Views: The number of views of a post or account (view = 3s)
Impressions: A count of how many times the Instagram post has been viewed for at least 1 second (applies to photos, videos, stories and carousels)
Reach: How many unique accounts viewed your post on Instagram
Engagements: Likes + Comments
Likes: The total number of likes on a piece of content
Comments: The total number of comments on a piece of content
Saved: The total number of times the photo or video has been saved by a user
Average Reach/Post: The average number of people who have seen one of your posts for the time period selected
Engagement Rate: The sum of likes + comments of the post divided by the total followers on the account, expressed as a percentage.
Frequency: The average number of times each person saw your post. Frequency is calculated as impressions divided by reach.
View-Conversion Rate: The percentage of served impressions of a video that resulted in a view, 3-SecondViews / Impressions *100
Instagram Stories Analytics
Average Reach (Account Level): Average reach of all stories within the selected time frame
Impressions: A count of how many times the Instagram post has been viewed for at least 1 second (note this is equal to a "View" on Snapchat, as they both measure 1 second)
Peak Unique Reach: The largest number of unique viewers (reach) who watched your story at any time over the time period selected
Reach (Frame): Unique accounts who viewed the frame within a story
Reach (Story): Unique accounts who viewed the story
Taps Backward: The number of people who tapped the left side of the screen per frame and per story
Taps Forward: The number of people who tapped the right side of the screen per frame and per story
Exits: Exits are the number of people who left your story as the result of swiping left or right to go to the next/previous story or swiped up to exit story viewing mode all together.
Replies: The number of people who responded to a particular video or picture while in story mode by clicking the send message button in the bottom left hand of the screen. Replies are also the only metric that can be turned off.
Completion Rate: The % of unique viewers who viewed all frames of your story from the beginning to the end.