Apps similar to Koalendar include Thunderbird Appointment, which is free and open source. Other options are Cal.com, Lunacal, Doodle and Calendly. Appointment Schedulers like Koalendar are a crowded field, with more than 50 alternatives for the web, iPhone, Android, iPad and self-hosting.
Online appointment scheduling software that allows professionals and teams to create booking pages, manage calendars, accept online payments, send invoices and automate appointment reminders.
United States
What Time offers a free, cross-platform group meeting scheduler, providing seamless online appointments with an accessible calendar. No registration required - start coordinating your meetings effortlessly today.
Group scheduling made simple: share one link, everyone taps the times that work, and the best group time rises to the top. Free calendar invites.
United States
Set The Date is a modern, no-login-needed scheduling tool built for social planning. Organizers can propose multiple dates, share a link via WhatsApp or email, and let friends vote on each option as “Best”, “Maybe”, or “No.
United Kingdom
Cal24h is a Swiss-hosted online appointment scheduling software for independents, practices, and teams.
Switzerland
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.
Timetics is an AI-powered scheduling tool for online and offline meetings and events. Get personalized meeting recommendations, seat arrangements, event management, and more.
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.
Whether you're on a call, chatting, texting, or emailing back and forth, sometimes it's easier to jump on a web conference or schedule a call. With i.help, skip all the steps and say, "go to i.help/yourname.".
United Kingdom
The fun and easy way to make plans with friends who matter to you. See the best places to go, the next available times to meet and make plans quicker than ever before.
United Kingdom
Zencal is like Calendly, but free and with better teamwork. It allows you to add multiple teams and sync everyone’s calendars. It's easy to sell meetings as a subscription and multiple meetings in a batch.
Poland
EU
