Yes, LustSeek does offer in-app messaging. The messaging feature allows users to communicate with potential matches quickly and easily. You can send messages, photos, or videos directly to other users and even include an "icebreaker" message if you're feeling brave. The app also offers a chat room where you can talk with multiple matches at once - perfect for group conversations! Communication is completely secure and all messages are encrypted end-to-end. So, while external communication channels may be available, LustSeek provides plenty of options for staying connected within the app.