The exact time actually varies depending on various factors, but it is usually between 15 and 30 seconds.
There could be additional delay introduced by other factors in the path. For example:
Mobile devices sometimes fail to upload in a flaky or particularly slow Internet connection
Corporate network firewalls sometimes block connections to Bugfender
Our servers might be under an unusually high load
In all cases, the Bugfender SDK will try to resend logs if they were not acknowledged by our servers.