You can vary the size of text and Avaz allows a structured and gradual transition from pictures to text, using the Caption size setting. You can gradually move from Only images (no text) to Only text (no images) through a series of steps where the size of the text is varied. The ‘Only text’ (no image) setting develops sight-word reading and provides a good transition to text mode.

Tap Settings > Caption size(under Picture settings) to change the size of text in the buttons.