This is an AppSumo issue. Can you please share your AppSumo account email address with us at [email protected] so we can ask them to investigate the problem?
We found out that AppSumo had disabled the add-on after our campaign ended which is why the option wasn't appearing for you. We've since asked them to turn it back on and they've confirmed it should be live now.
You can follow the steps listed here to complete the purchase: https://zcal.co/upgrade-appsumo-business-plan
Hi - you can add a custom question field for invitees to state the purpose of the meeting. Learn more at: https://help.zcal.co/invite-settings/custom-questions
Q: Multiple Domains
I have tier 1, can I use tier 1 with 2 different domains? And if so how do that work?
Thank you
Share zcal
Q: Website offline
The website seems to be offline for a while now, is the product still active?
Gurtaj_zcal
Mar 23, 2026A: The website is fully operational. Can you email us with your account email at [email protected] so we can check if it's an account issue?
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Q: Business Plan features
Is there a way to upgrade to Business Plan features right now? I see that appear Sold out. Thanks
Gurtaj_zcal
Mar 2, 2026A: AppSumo disabled the add-on after our campaign ended. We've since asked them to turn it back on and they've confirmed it should be live now.
You can follow the steps listed here to complete the purchase: https://zcal.co/upgrade-appsumo-business-plan
Please contact AppSumo support if you don't see the add-on on your AppSumo Products page.
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Q: I have a Tier 3 license. Can I get the add-on?
I want to buy the add-on but cannot do so when I go into the 'change plan' option of my existing license in appsumo. How can I get this resolved?
Gurtaj_zcal
Feb 12, 2026A: Hi! Yes you can purchase the add-on separately by following these steps: https://zcal.co/upgrade-appsumo-business-plan
Share zcal
That does not work. I am from a previous campaign of yours, before you had the add-on option. It does not give me a window to add the add-on.
Verified purchaser
This is an AppSumo issue. Can you please share your AppSumo account email address with us at [email protected] so we can ask them to investigate the problem?
Verified purchaser
We found out that AppSumo had disabled the add-on after our campaign ended which is why the option wasn't appearing for you. We've since asked them to turn it back on and they've confirmed it should be live now.
You can follow the steps listed here to complete the purchase: https://zcal.co/upgrade-appsumo-business-plan
me the same
Verified purchaser
I also need to purchase the addon. Thanks
Verified purchaser
AppSumo disabled the add-on after our campaign ended. We've since asked them to turn it back on and they've confirmed it should be live now.
You can follow the steps listed here to complete the purchase: https://zcal.co/upgrade-appsumo-business-plan
Please contact AppSumo support if you don't see the add-on on your AppSumo Products page.
Q: CalDAV connection outside of iCloud?
Can you connect a CalDAV calendar with an app password that's not in Apple, Google, or Outlook?
Gurtaj_zcal
Feb 23, 2026A: Hi - currently we only support Apple CalDAV connections. Adding support for other CalDAV connections is on our long term roadmap.
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Verified purchaser
I am looking for that too. Also I would like to have a purpose for the meeting box for them to say why we are having the meeting.
Verified purchaser
Hi - you can add a custom question field for invitees to state the purpose of the meeting. Learn more at: https://help.zcal.co/invite-settings/custom-questions