Trello

Infinitely flexible. Incredibly easy to use. Great mobile apps. It's free. Trello keeps track of everything, from the big picture to the minute details

PRICING

Free tier available. Paid accounts start from $9.99 per user/per month (billed annually)

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Key Features

Unlimited boards, lists, cards, members, checklists, and attachments.
Add team members and collaborate on various boards
Create project due dates and assign tasks to various members of your team

Great for

Organise and view the progress of your project
Having a central location to upload images and attachments for your team
Assign and track projects with your team members
Create to-do lists for projects

Be aware that

On the free tier you are limited to 10MB attachment uploads

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