Yes, both Planzer.io and Aisle Planner offer a Free Trial.
Planzer.io is designed for Large Enterprises, Medium Business and Small Business.
Aisle Planner is designed for Individuals, Large Enterprises, Medium Business and Small Business.
Pricing for Planzer.io Starts at $10/Month whereas for Aisle Planner Starts at $39.99/Month.
Some top alternatives to Planzer.io includes Week Plan, Office Tracker, Social Tables, SoPlan, ToEvent, Groupize, WeekToDo, Atomicly, Calendar and Calendarist.
Some top alternatives to Aisle Planner includes HoneyBook, Planning Pod, Event Always, EventBookings, Let's Plan, SoPlan, Expodoc, OnePlan, Bitpod Event and EventPro Software.