TTalk vs Zero Degrees
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
TTalk
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TTalk - One Chat Room, Many Languages! Chat with the world — in your own language. TTalk is a new kind of messenger where people speaking different languages can talk together in the same chat room, each reading and writing in their native language. Multilingual group chats - 170 lunges include Japanese, Korean, English, Spanish… all welcome! Messages are auto-translated for every user Easily connect via QR code or link Supports voice input (STT) and voice playback (TTS) No matter the language, communication is possible. With TTalk, the world is just one chat away. [Caution] # Translation may differ from the intended audience's culture and intentions. # This service is not responsible for any issues arising from this. # Please use this service with understanding and consideration for the intended audience's culture and intentions. # If you feel the translation is out of place, please inquire to confirm whether it reflects the intended audience's intention. # Please refer to https://cloud.google.com/translate/docs/languages for supported languages. [Optional Access Permissions] # Microphone: Used to send messages via voice # Sppech Recognition: Used to share what you say in voice as text # Camera: Used to scan QR codes to join chat rooms and add friends # Notifications: Used to notify users of incoming messages and invite * You can still use the service even if you do not agree to optional access permissions. * If optional access permissions are restricted, some features may not function properly.
Zero Degrees
This app connects you with strangers who share similar thoughts through temporary, anonymous chat rooms. Choose between 'Think' mode for resonance or 'Debate' mode for counterpoints, with local on-device debate judging for privacy.
- Anonymous conversations
- Temporary chat rooms
- Think mode for resonance
- Debate mode for counterpoints
- On-device debate judging
- Encrypted chat messages
- No accounts or friends lists
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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.
Screenshots
Verdict
The clearest difference is iOS requirement: TTalk at 13.0 against Zero Degrees's 17.0. On price and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | TTalk | Zero Degrees |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 7 months | — |
| Ads | — | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | — | iPhone — better |
| Requires iOS | 13.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 49 MB | 2.4 GB |
| Age rating | 12+ | 4+ |
| Developer | Cloud Lab Co., Ltd | Bradley White |
In-app purchases
TTalk
No in-app purchases
Zero Degrees
No in-app purchases









