It’s about a third. Imagine if your income went up by 30% in 24 hours, I reckon you’d be pretty happy about that.
Also - it tends to take months for a new version of iOS to reach a large number of users, and years to reach everyone. So a rapid growth rate (probably not 30%, but still fast) is likely to be sustained over quite a while.
The axis is somewhat misleading. A jump from 8k to 11k installs is nothing.
Edit: just saw from the comments this is the number of installs per day so its bigger than I thought
It’s about a third. Imagine if your income went up by 30% in 24 hours, I reckon you’d be pretty happy about that.
Also - it tends to take months for a new version of iOS to reach a large number of users, and years to reach everyone. So a rapid growth rate (probably not 30%, but still fast) is likely to be sustained over quite a while.