Thanks for considering my application. At present there are 980 (mostly Baháí) writings in the app.
Daily Baháí Writings will simply choose one randomly each time you click on the Next Scripture button.
Clicking the mail icon will populate an email with the current scripture if you have mail configured on your device.
Same for Facebook. However, If you have the facebook app also installed, it "may" not allow you to direct post.
You can also increase or decrease text to make it easier to read and It can even read it out loud for you if you like.
Enjoy!