Is Cal.com or Motion free?

Cal.com can be used for free (free plan, paid from $15 a month). Motion is paid.

Do I need to install Cal.com or Motion?

No. Both run in a web browser, so you can open either one and start.

Price, ratings and what each one does, side by side. Every fact here comes from their listings on Linkstore.

Open scheduling that you can host yourself.

Auto-schedules your tasks onto the calendar.

Cal.com

Motion

Share a booking link, connect your calendars and let people pick a time. Open source and extensible.

Motion takes a task list and places the work into open gaps on your calendar, then reshuffles when meetings move.

Apps that do a similar job, closest matches first.

Google Calendar
A calendar for your day, shared with other people.
ProductivityNewFree
Open
TickTick
A to-do list with a calendar and a pomodoro timer.
ProductivityNewFreemium
Open
Calendly
Let people book time with you without the back and forth.
ProductivityNewFreemium
Open
tasks
Capture daily tasks, track your progress, and sync between devices with WebRTC
Productivity5.0Free
Open
Notion Calendar
A fast calendar that sits on top of Google Calendar.
ProductivityNewFree
Open
Asana
Plan work and track who is doing what by when.
ProductivityNewFreemium
Open