Hello vs Zero Degrees

Imagine a world without language barriers. A world in which all people could communicate easily, bypassing the hurdles of linguistic differences. That world is now a reality; say hello – to Hello. • Chat with anyone in their native language. • Connect fluently with new people via participation in PenPals. • Send automatically translated voice messages. • Create multilingual group chats with up to 10 people. • See untranslated originals or voice message transcriptions with a simple long press on any message. • Support for 50+ languages. • Sign up in seconds with phone number verification.

0° is a new kind of anonymous conversation app. You are not seven degrees away. In a global world, someone else may be thinking the same thing right now. Type one thought. If someone else is thinking the same thing, or something close enough, 0° opens a temporary room so you can talk. Use Think mode when you want resonance. Use Debate mode when you want the counterpoint. In the iOS app, debate judging runs on-device, so the score is decided locally instead of sending the conversation to a server LLM. 0° is intentionally lightweight: - No accounts - No friends list - No follower graph - No permanent room history - Chat messages encrypted with client-side key agreement before relay transport - Random session names - Temporary rooms - Local text safety gate for obvious abuse patterns before posting - Report and dissolve controls 0° is for strangers who want to think out loud without turning every conversation into a profile, performance, or permanent record.