Have you tried Apple's Shortcuts?
We thought the new Shortcut feature on iOS devices would be a handy feature for people who use AAC apps to know about. It enables you to automate messages to be sent out and to trigger actions to be played at certain times or on command. Find out more here about shortcuts, actions and automation: What is a shortcut? A shortcut is a quick way to get one or more tasks done with your apps. Apple's Shortcuts app lets you create your own shortcuts with multiple steps or "actions". What is an action?
An action is the component of a shortcut. In essence, it is a single step in a task. You can mix and match actions to create shortcuts that interact with the other apps and content on your iPhones and iPads, as well as interact with content or services online. Each shortcut is made up of one or more actions.
What is automation?
Automation is a particular type of shortcut that’s activated automatically by an event, rather than manually.
How can I use Shortcuts? If you’re looking for ideas for new shortcuts, or if you want to see what’s possible and how particular shortcuts are built, check out the Gallery in the Shortcuts app.
Read more here: https://support.apple.com/en-gb/guide/shortcuts/welcome/5.0/ios