Crystal-clear voice and video
Start a voice call with one tap from any chat, or go face-to-face on video. Calls ring natively on your phone — answer from the lock screen like a normal phone call.
Switch to video mid-call
Started with voice and want to see each other? Turn your camera on during the call and Haydai invites the other side to join on video — no hanging up, no starting over.
Your call history, useful
Missed, received and dialed calls stay organized, and you can call someone back straight from your phone's own recent-calls screen.
Frequently asked questions
Are Haydai calls free?
Yes — voice and video calls are free and use your internet connection (Wi-Fi or mobile data).
Can I switch a voice call to video?
Yes. Turn your camera on during the call and the other person is invited to join with video.
Do calls work in the background?
Yes — incoming calls ring like normal phone calls, even when the app is closed.
Explore Haydai
Private messaging
Messaging that feels effortless
Channels
One post, everyone sees it
Groups & communities
Your people, one place
Status
Share the moment, not the archive
Video notes & voice effects
Say it with your face — or a funny voice
Privacy & safety
Your space, your rules
Coins & marketing cards
Built-in tools to promote what you do