I did not know there was a category called Institutional Purchase.
What it means is that somebody saw my app, liked it, and told his employer to make it available to all their Mac users.
The app is free so only those users who really like it/want to use multiple devices will pay for it. But this is a huge step that somebody liked the app so much that they asked their institution to make it available.
KeyPad is a side project. It feel awesome the way that it is growing through word of mouth. Thank you!