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Twitter has been completing the migration of third party applications, such as Tweed, to use their new authentication methods. (For more on the authentication details, please see Twitter’s developer docs.)
One result of this change is that the free version of Tweed no longer works. As we have noted in the past, we are no longer supporting the free version of Tweed, so we will not be upgrading it to work with Twitter’s new authentication scheme.
We understand this will frustrate many Tweed users. For a limited time, the paid version of Tweed will be available for $0.99, in all markets. This price change should appear in the App Catalog soon.