GTD planner is a type of software which can be used to cope with famous time management method invented and described by David Allen (Getting Things Done). Actually, any time management software can be called “ GTD planner ” if only it supports the main traits and stages of the David Alian's method:

• Defining purpose – this stage is about answering a question “why do I need to do this?”. As a result of this stage we define what a successful outcome is, we decide where we want to get, and obtain a motivational background. 
• Visioning outcome and brainstorming – it is about figuring out the ways of how we will achieve results that we want to get. You need to visualize the end outcome and brainstorm to generate some ideas on how to advance towards completion. Put your ideas on a paper (or into your electronic GTD daily planner) to clear your mind and let in some new ideas.
• Organizing ideas into practical steps – study and sort your ideas to translate them into definite doable actions. On this stage you are ploting the practical course towards predefined purpose (with a help of planner you can easily group your actions into sequences and by priorities).
• Identify the next steps – the necessary condition of planning is defining the next action following after every previous action, until your goals are achieved (with a help of task planner software you can easily build step-by-step sequences of actions and control the way of their performance).

Some specific examples of time planners for team and individual use:

VIP Organizer is a personal checklist management instrument providing functionality rich enough to be used as effective daily planner where you can freely group, prioritize and control your actions. Actually with a help of this tool you can perform planning of any scale so that you can use it for example as a weekly planner, along with forming up more specific daily to-do lists.

VIP Task Manager is a more professional time management solution that can work in a multi-user regime. It can work in multiple interface modes including agile Task List, Task Tree and Calendar, so you can easily use it as weekly planner for your business team where people can share and report their duties in real-time.