Using iPhone bluetick app, anytime you put a due date in in responds with toxoids internal server error. Tasks can only be saved with no due date
since the Bluetick app is a third-party application, we can't guarantee its reliability. Please contact the Bluetick support and if it turns out that there's an issue with our API, we'll surely help solving it.
Also, we will soon introduce our own Todoist mobile solution, which shouldn't cause any issues.
We are pleased to announce that the Todoist Mobile application for iOS is now available at the App Store: http://itunes.apple.com/us/app/todoist/id476672770?ls=1&mt=8
It can be downloaded for FREE. It's compatible with iPhone, iPod Touch and iPad (requires iOS 3.0 or later). Beside all standard Todoist's features, Todoist for iOS also includes OFFLINE SYNC.
We will soon release the Android version as well and will notify you once it's been published.
Thank you for your patience and continued support, we hope this App will increase your productivity and provide a great extension for Todoist's functionality which we will continue to develop according to your suggestions and feature requests posted in our Votebox: http://todoist.com/Vote/
If you have any questions or suggestions for the improvement of this App or experience any issues with it, please post them in this thread: http://todoist.com/Support/showQuestion/720/
We appreciate any feedback.