You can install GitHub Apps in your personal account or organizations you own. By default, only organization owners can manage the settings of GitHub Apps in an organization. You can install a GitHub App on your personal repository.
Installation access tokens are limited to specified repositories with the permissions chosen by the creator of the app.
By contrast, users authorize OAuth Apps, which gives the app the ability to act as the authenticated user. You can authorize an OAuth app to have access to resources.
An OAuth access token is limited via scopes.