Major scheduling bugs & impractical team Round-Robin
I purchased Tier 2 expecting a reliable team scheduler.
The Round-Robin only works if every team member creates their own account and upgrades, which multiplies cost and makes the feature impractical for real teams.
The UI/UX is unintuitive in several places, but the critical issue is reliability: the app repeatedly books meetings when I’m already busy — it fails to correctly read or respect my calendar availability, causing double-bookings.
I triple-checked my settings and integrations; there’s a small chance it’s my mistake, which is why I’m giving 2 stars instead of 1.
However, I’ve used many calendar apps (Calendly, Cal, etc.), and if this is user error the interface is still extremely confusing.

David_AppSumoOriginals
Sep 23, 2025Hey, axeljj22! Thanks for the honest review here.
To clarify, a single Agency Plan owner can set up a Round Robin booking type and invite *any* level of user. For example, they can invite Individual Plan, Free plan, or other Agency Plan users. So, no, it doesn't require account upgrades.
Also, it sounds like there's maybe a mis-connection or mis-configuration with booking over existing availability. This is a core feature of TidyCal, and it works well enough that 10,000+ bookings happen per day (I use TidyCal weekly myself). I would encourage you to reach out to support@tidycal.com so we can see where the error is, as there should never be double bookings and typically the only time we hear about it is if a setting is misconfigured in TidyCal (i.e. allow double bookings very explicitly) or an issue with the calendar (i.e. events marked as "free").