No, you upgrade apps individually—create as many Personal apps as you'd like, and upgrade just the apps that need more features or capacity.
A public app can be used by anyone in the world—anyone who visits your app can use the app without signing in, or they can sign in with any email address, depending on your app's security setting. These apps can have unlimited users.
A private app limits access by password or email address. Its price depends on the number of users that log in and use the app each month.
We count the active users for your private app, based on the unique email address they sign in with.
We do not count the number of emails in your allow list—you are charged for actual users, not potential users.
We do not count the number of devices used. If the same user uses the app on desktop, tablet, and a phone, this is still one user.
Your app will downgrade to Personal, and your account will be credited for unused time.
A Google Sheet reload happens whenever your Google Sheet is changed by a person, either by editing it in Google Sheets, or by doing something in your app that edits your Google Sheet. Whenever this happens, Glide reloads your entire Google Sheet to show the latest info in your app.
Yes, you can learn more and apply here.