HeyVal provides two sets of text
analysis tools to review the contents of any public Twitter timeline or
text from a message, email, web page or PDF.
Protected Twitter accounts cannot be parsed.

The UI vocabulary is based on the classic definition of a
computer:
input -> process -> output
When the app is launched the Input screen will appear first
Tapping the input text area will bring up the keyboard, from there you can type in any text or paste in the contents of the clipboard.
You can paste in the contents of a text message, web page, email, or PDF. All text processing is done locally on the device so text contents and processing results are never sent anywhere else and never leave your phone.
To parse the timeline of a Twitter user, type in the @handle of the username you wish to review in the Source text box. When you select mood or grade level analysis, you can then choose the most recent 50, 100, or 200 tweets to be ingested. Communication with Twitter is direct from your device and does not go through any other servers.
The tweets are then loaded and processing begins.
Mood and grade reading level analysis done with the Twitter timeline
Mood and grade reading level analysis done with the text of the Declaration of Independence
Acknowledgements