Apps similar to zcal include Thunderbird Appointment, which is free and open source. Other options are Cal.com, Notion Calendar, Doodle and Calendly. There's no shortage of Appointment Schedulers like zcal, with more than 50 alternatives for the web, Android, iPhone, self-hosting and Mac.
Open-source, AI-native scheduling platform merges all calendars into a conflict-free system with a single link, team round-robin, routing forms, group polls, reminders across channels, Stripe integration, and self-hostable Docker deployment for private control.
United States
SlotPicker pulls your real Mac calendar onto a weekly grid, lets you paint the times you are open, and copies them as tidy text for any email, Slack or message.
Callendo is a scheduling application designed for organizing appointments, meetings, and events with video! Get up to 85% more meetings!.
Open your office 24/7 and manage your appointments with a solution tailored for agents and agencies. Share booking link with potential buyers, track visits, and never miss an opportunity.
Discover Dlopo, a scheduling tool designed to simplify life. Whether setting up personal appointments or coordinating with others, Dlopo helps manage it all in one place.
CalendHub syncs your calendars across Google Calendar and Outlook in real-time. See all your events in one unified view, avoid double-booking, and share scheduling links so others can book time with you. Privacy-first with full control over what gets synced.
Breely is the most flexible online booking system, allowing you to build the exact appointment and class scheduling, forms, and workflows for your business.
AI scheduling assistant you can CC on email to handle coordination and calendar. Also has booking page and polls. The most affordable of its kind.
Canada
Create a shared event link, let participants mark free time without accounts, and use the resulting heatmap to find group overlap. The mobile-friendly tool handles local time zones and supports games, rehearsals, calls, study groups, and family events.
United States
Use your time efficiently by speaking to people when it is convenient for both of you, without scheduling a meeting. TAG allows you to make and receive calls only when you actually have the time to do so.
Sweden
EU
User-friendly online booking page with iOS and Android apps to manage appointments for service professionals and their teams.
SpainEU
Switzerland
