Avaz Français and Avaz Svenska have accents in the Avaz keyboard, that are accessible through the long press action on the keyboard. 

If you are using switches for the app, and are having problems in configuring the switches for activating the accents, take a look at this video - The video was created by Lucas Steuber, who uses Avaz at his clinic (Language Craft, at Portland). And he had graciously offered to create a video on how to do this, when one of our customers sought our help to set up the switches. 

Click here to know more - How to set up switches for long press, to activate accents in the Avaz keyboard