Some of my clients are using a great ADHD management tool & it's currently free to try! I'm registered as a coach with Skoach so clients can share their info with me so we can work together on scheduling & task planning.
Skoach is so much more than a scheduler. As well as for keeping track of appointments, it's fantastic for planning & scheduling tasks. It has a "Task Tree" function whereby tasks can be broken down into manageable steps. It's a very visual format, with everything colour coded. There's a function whereby you create a colour coded "template" week which acts as the backdrop to the calendar function. I've been encouraging my clients to make similar templates for a while now so i was impressed to find that Skoach had this facility.
It has a visual timeline which lets you gauge your progress, great for staying on task! It even keeps track of interrupted or unfinished tasks, puts them back in the task list & lets you record last/next action which helps you get back on track quickly.
Skoach adapts well to many organising methods, including GTD, or goal based systems. It even sends you reminders by email (also by text if you live in the USA). You can even email Skoach to add to your task list/schedule.
Anyway, a huge thumbs up from me! Let me know what do you think (add your comments below or email me!). Hope you like Skoach as much as I do!