Akiflow is a to-do and calendar app that brings together a daily schedule for you.
Things 3 packs in tasks and personal projects into a beautiful, minimal to-do app.
Todoist is one of the best to-do list applications with all-round natured features.
Superlist wants to be a to-do list, notes, projects and team collaboration app.
Use boards, timelines, calendar and more to plan and manage projects with your team.
Taskade is a project management software designed for small teams dosed with AI.
Routine is a daily planner app with tasks, calendar, light note-taking & meetings.
TickTick is a feature-heavy, well-built personal to-do list application.
Evernote is a note-taking application with tasks, calendar and AI features inside.
OmniFocus 4 is a place for busy professionals to manage tasks and sort projects.
Motion is an AI-focused to-do list app with calendar, meetings & auto-scheduling.
Nozbe is a simple project management tool to manage work and life tasks.
Getting Things Done Apps & Tools
Understanding GTD Apps More
GTD apps are very simply tools and apps that align with the concept of Getting Things Done by David Allen. The concept was developed in the 1990s by David Allen, but tools and apps can be adapted to it, to better align with your day-to-day GTD use.
GTD or Getting Things Done as a concept is free to consume. The book itself is priced between $7.99 and $14.99 depending where you buy it, David Allen's company "The David Allen Company" (the company behind it GTD) does offer courses and resources for free and paid workshops to help implement GTD within teams.
There are a range of task management apps you can use with GTD but tools like Evernote as a note-taking tool help you align to GTD too, it depends on what systems you tend to use day-to-day.