[cbhl]

If you sign into the web interface and click settings, there's a "Premium" option for $24/year or $40/2 years. It would give you weekly text-only backups to Dropbox or email, increase the number of photos per post to 5, and allow you to customize your daily email.

[billzhuang]

still did not found, maybe has IP filter, different country has different payment strategy.

[cbhl]

Strange. It was in the right sidebar for me.

Maybe it is an IP filter. I remember having seen the option for the last few years, both in Canada and in the US.

[Slix]

Perhaps it has been taken down due to the shutdown announcement. But I never saw the option before.