In-App Messaging

[KOB]

I am trying to build an app for a non-profit that teaches kids how to read bikes. We offer a series of summer camps. 

I would like to have in-app messaging system (so that coaches do not have to share their personal cell phone with parents) as well as allow a a coach to communicate with their specific group of camper for events (weather changes, etc).

In addition I would like to be certain that only those parents actively engaged in camp can access this public app

[WillowMobileSys]

You didn't ask a question but I assume you want to know what in-app messaging capabilities there are. 

First, there is not a chat feature.  You could implement something that operates a little like a chat.

Built-in features include sending Text/SMS messages, Push notifications and email

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@KOB wrote:

In addition I would like to be certain that only those parents actively engaged in camp can access this public app

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It's a bit of a contradiction to say you want a public app but then only want certain people to have access to it!!   

There are Public apps which allow anyone to access to the app who has the link.  They require no login so the app will not know who the current user is.

Secured apps require authentication so the app does know who the current user is.  These apps come in two flavors - 1) apps limited to only a white-listed set of users - no else can access the app.  2) apps that allow ANY authenticated user.    

It seems to me you would want the white-listed secured app based on your post.

I hope this helps!

[KOB]

Thanks!

How do I implement the "Built-in features include sending Text/SMS
messages, Push notifications and email".

I think the Text/SMS messages could be great.