There’s a multitude of to-do apps in the App Store, but I bet no other to-do app is as preoccupied with hashtags as Landasia Soft’s #todo. It is so preoccupied, in fact, that its latest update adds a dedicated tag manager, along with a few other enhancements.

Released early last month, #todo is not like most other apps of its kind in that it appears to be the only one that incorporates at least a couple of significant features inspired by Twitter. As suggested by the styling of its name, #todo makes use of hashtags, mainly to categorize tasks, assign generic due dates, and make lists. The app also lets you mention people from your contacts in your tasks with the @ prefix. Moreover, you can attach photos to your to-dos. See the app in action in the preview video below.

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As mentioned, the most recent update to #todo introduces a tag manager. This tag manager can be accessed by going inside search view and then opening the settings page. With the tag manager, you can easily delete tags and undo or finish all tasks associated with a certain tag.

Also introduced by the update is the ability to add a reminder to each to-do as well as the ability to view to-dos in post-it or list mode. Language support for Japanese and Korean and improved URL support in to-dos are thrown in, too.

Designed for iPhone, #todo is available in the App Store for $1.99. If you like your to-do app to assume Twitter-like functionalities, #todo is the way to go. Any interesting task-related hashtags in mind?