Thunderbird Appointment makes it easy to find a time to meet. So you can ditch the admin and streamline your day.


Simple Appointments is described as 'Highly customizable web application that allows your customers to book appointments with you via the web. It radically simplifies the process of scheduling events, meetings, appointments, etc. — It's free' and is a appointment scheduler in the office & productivity category. There are more than 25 alternatives to Simple Appointments for a variety of platforms, including Web-based, SaaS, iPhone, Android and Wordpress apps. The best Simple Appointments alternative is Thunderbird Appointment, which is both free and Open Source. Other great apps like Simple Appointments are Doodle, Calendly, TidyCal and Topmate.
Thunderbird Appointment makes it easy to find a time to meet. So you can ditch the admin and streamline your day.


Doodle is the worlds leading online scheduling tool with a rapidly growing user base of more than three million unique visitors per month across the globe. It takes the pain out of finding the right date and time for a group of people to meet and makes scheduling virtually...



Calendly can connect with up to six of your calendars to automatically check availability and help you connect with your best contacts, prospects and clients.




Web-based scheduling platform offering unlimited meeting booking types, seamless calendar, video conferencing, and payment integrations, cross-timezone support, easy setup, embeddable booking pages, API automations, mobile-friendly interface, and notifications.




Topmate is a tool that connects creators and experts with their audience through one-on-one sessions, allowing users to share knowledge and monetize their time. Users create a personal link, list services, set availability, and establish charges, which followers can use to book...




Easy!Appointments is a highly customizable web application that allows your customers to book appointments with you via the web. Moreover, it provides the ability to sync your data with Google Calendar so you can use them with other services.




Undock is a scheduling platform that integrates with Gmail, Outlook 365, Superhuman, LinkedIn, and Twitter. It functions as a calendar assistant, allowing you to share times or your entire calendar. It also enables instant meeting scheduling without checking your calendar.



Online platform providing 24/7 self-service booking for virtual classes, staff and resource scheduling, automated reminders, online payments, marketing automation, social media integration, deals, reviews, analytics, and calendar sync for engagement.



MyMeet.io simplifies scheduling, payments, and meeting handling for both professionals and clients, streamlining the entire process.




WordPress tool managing vast booking tasks with 16k weekly appointments, 20k monthly events. Offers integration with WooCommerce, customizable features, and real-time notifications. Simplifies bookings through a step-by-step wizard and supports online payment methods like PayPal and Mollie.







