My company has an internal app, where employees can install in there own devices by accessing a link. Devices are not managed. App's Provisioning profile is expiring in one month, is there a way to update provisioning profile without re-installing the app? Our app has more than 1000 users so it is difficult to get it updated by all users
How to update Provisioning profile without Apple store or MDM?
No, if you aren't using an MDM system, you'll have to use Xcode to rebuild the ipa file with the new provisioning profile, and each user will have to install the app again.