Microsoft To-Do, the best cross-platform to-do app has been updated on all platforms (Windows 10, Android and iOS) with file attachment support.
It was a top feature request and as per the company, they were working on it for months. It will allow you to add file or photo attachments to your task. The file size limit of each attachment is 25mb.
A few days ago, Microsoft To-Do got Cortana integration as well as Outlook.com integration. It got updated with many new features for all platforms recently and now this. It looks like, the To-Do team is rapidly crossing tasks from their to-do list one by one.