Kindroid

Kindroid lets you build your own AI character rather than pick one from a catalogue. You write its personality, backstory and key memories, choose an avatar, and design a custom voice from a short description. The same character can be a friend, a mentor, a study buddy or a roleplay partner for interactive stories, and its long-term memory carries what you have told it from one conversation to the next.

Conversation goes beyond text. Real-time voice calls handle interruptions and switch languages mid-sentence, and live video calls show the avatar lip-syncing and reacting, with the option to share your camera or screen. A proactivity setting lets the character message first, send a voice note or a selfie, or call you, on a schedule you control. Rooms bring friends and their Kindroids into one invite-only space for group chat, collaborative storytelling or worldbuilding, and several of your own characters can share a group chat or call. The AI can also search the web, open links and look at images and video you send.

Kindroid runs on iOS, Android and the web. The app is free to download with no ads, some features require a subscription, and the company states that chat data is encrypted and never sold.