This is a great free app from GoTalk! Thanks to fellow seller Autism-And-Hormones-The-Middle-School-Years for asking me about creating a 25 symbol core board!
Here is a pdf tutorial that will help you create a 25 symbol core board that will work with the A Year of Core program and resembles the organization of the program core boards.
Also download the picture symbol zip file to use with the app on your iPad. You can find the zip file here (https://www.teacherspayteachers.com/Product/A-Year-of-Core-GoTalk-NOW-Lite-AAC-App-for-iPad-Symbol-Pictures-2110857)
This tutorial will also work with the full version of GoTalk Now. If using the full version you can create additional pages of fringe vocabulary for a more comprehensive dynamic display communication device.