Speech Assistant AAC is a text-to-speech app designed for people who have speech impairments due to various conditions such as Aphasia, MND/ALS, Autism, Stroke, Cerebral Palsy, or other speech problems. The app allows users to create categories and phrases that are placed on buttons, which can be used to create messages that can be shown or spoken using text-to-speech. The app also has a keyboard feature that allows users to type any text they want.

The app is fully customizable to meet the needs and preferences of the user. It has various color schemes, and users can create their own personal color scheme. The size of the buttons, textbox, and text can be adjusted, and individual buttons with phrases can be given different colors. The app also has a full-screen feature that allows users to show their message with a large font, which is useful for communicating in noisy environments.

The app has a free basic version, and users can upgrade to the full version for a one-time payment. The full version has additional features such as an unlimited number of categories, backup and restore options, the option to select symbols from the set of 3400 Mulberry Symbols, history for quick access to previously spoken phrases, and the ability to create user profiles for different languages, situations, or persons. The app does not require an internet connection, and users can contact the developer for feedback or questions.

The app uses the voice installed on the user's device, and users can change the selected voice in the voice settings of the app. The app also has a feature that allows users to connect a Bluetooth keyboard and create shortcuts for the functions Speak, Clear, Show, and Attention Sound. The app has an undo option in case of unintentionally tapping the clear button, and an attention sound button on Main and Full screen.