Hi Zcal team! 👋 I'm very interested in your app, especially the SMS reminder feature. Can you confirm if SMS reminders are also sent internationally (outside the US), and specifically to Europe? If yes, how many credits does one SMS cost in these countries?
I'm a Tier2 User, when I try to use the Custom domain feature I'm prompt to pay $12/ month. How do I get this feature under my Plan without a monthly subscription?
Founder Team
Gurtaj_zcal
Jan 12, 2026
A: Hi, you can purchase the Business plan add-on to access the custom domain feature. If you're already purchased Tier 2, please follow these steps to upgrade: https://zcal.co/upgrade-appsumo-business-plan
Hi - teams are a way you can split up your organization or different brands you manage. Each team can have their own name, URL, custom domain, email and branded colors. Users are the people you add to your teams - you can add a user to a single team or add them to multiple teams. Regardless of how many teams the user is on, one user = one seat
Q: What features should be included in a business plan?
Founder Team
Gurtaj_zcal
Jan 12, 2026
A: Hi the business plan includes the following: - A custom domain for your booking page (ex using "book.johnsmith.com" instead of zcal.co/johnsmith) - Custom email senders (ex sending all notification emails from bookings@johnsmith.com instead of notifications@zcal.co) - Double the number of SMS credits - Unlimited teams
Q: SMS Reminder in Europe
Hi Zcal team! 👋
I'm very interested in your app, especially the SMS reminder feature.
Can you confirm if SMS reminders are also sent internationally (outside the US), and specifically to Europe?
If yes, how many credits does one SMS cost in these countries?
Thanks a lot!
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Q: How to get the Custom Domain Fearture?
I'm a Tier2 User, when I try to use the Custom domain feature I'm prompt to pay $12/ month. How do I get this feature under my Plan without a monthly subscription?
Gurtaj_zcal
Jan 12, 2026A: Hi, you can purchase the Business plan add-on to access the custom domain feature. If you're already purchased Tier 2, please follow these steps to upgrade: https://zcal.co/upgrade-appsumo-business-plan
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Q: Tier 1 + The add-on vs Tier 3 + add-on
If I got tier 1 plus the add on ,what is the difference between this and buying tier 3 plus the add on?
I see no need for tier 3 , am I right?
Also , does the add-on paid once or annual fees?
Gurtaj_zcal
Jan 12, 2026A: Hi, the only difference between Tiers 1-3 is in the number of seats supported.
The Business plan add-on is a one-time payment.
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But the add on allow unlimited teams, does this mean un limited users? Or there is a difference between users and teams?
Verified purchaser
Hi - teams are a way you can split up your organization or different brands you manage. Each team can have their own name, URL, custom domain, email and branded colors. Users are the people you add to your teams - you can add a user to a single team or add them to multiple teams. Regardless of how many teams the user is on, one user = one seat
Q: Does the SMS service support Hong Kong?
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Q: What features should be included in a business plan?
Gurtaj_zcal
Jan 12, 2026A: Hi the business plan includes the following:
- A custom domain for your booking page (ex using "book.johnsmith.com" instead of zcal.co/johnsmith)
- Custom email senders (ex sending all notification emails from bookings@johnsmith.com instead of notifications@zcal.co)
- Double the number of SMS credits
- Unlimited teams
Share zcal
Thanks.