Revert-chat app for iPhone and iPad

The platform offers an instant messaging service where users can create dedicated chat environments (chat-rooms) identified by topic using one or multiple hashtags. Each chat-room is initiated by the post originator when setting up the message’s topic and relevant distribution list. Such initial message (always identified by a topic/hashtag) is dispatched on a one-to-one private basis to all the selected recipients. All the interactions between the originator of the message and the recipients are at all times private one-to-one although gathered in the same chat-room feed for that topic. When the originator posts the initial message identified by a certain topic/hashtag, the App will open a chat-room accordingly which will gather all the one-to-one exchanges between the originator and the recipients about that topic, in the same feed, in chronological order.
The recipients as well, on their side, when receiving messages from different originators about the same topic (same hashtags) can gather the relevant exchanges in one chat-room identified by such hashtag(s).
All the exchanges are ALWAYS on a one-to-one, private, basis.