Support
MarzsAI is a chat app for iPhone, in beta on TestFlight. One person builds it and one person reads this mail, so a reply can take a few days.
Write about anything
A bug, something confusing, a reply that was wrong, or a request to delete data. All of it goes to the same place.
Asking for an invite
Send mail to the same address with the email you use for the App Store, and say a little about what you would use the app for. Places are limited and they go out by hand, so this is not instant and it is not automatic.
Your address is used to send the TestFlight invite and nothing else. It does not go on a list.
Deleting your data
Conversations are kept on your phone, so you can delete them yourself. Swipe a thread in the list to remove one, or use Settings to remove all of them. Deleting the app removes them too. None of that needs anything from us.
For anything held on the server, which is described in the privacy policy, write to the address above.
Elsewhere
Instagram. Mail is read more reliably.