ChatGPT is a brilliant stranger. Luna is yours
ChatGPT is the most capable general assistant. Luna is the AI you actually own a relationship with — persistent cross-device memory, voice that knows you, sovereign infrastructure, and a builder/agent layer ChatGPT does not ship.
| Capability | LUNA | ChatGPT |
|---|---|---|
| Relationship continuity (long-term memory) | Yes — Memory Pods | Limited |
| Sovereign / private | Yes — no third-party LLM | OpenAI cloud |
| Voice companion (always-on) | Yes — Chirp 3 HD | Voice mode (Pro) |
| Builds native apps | Yes — iOS/Android/Web/macOS | No |
| Cost | Free + $1.99 | Free + $20 |
ChatGPT solves one piece of the problem well. Luna combines the companion dimension with the agentic and builder dimensions, on sovereign infrastructure. That combination is the category Heaven is building — and there is no second product in it yet.
Yes. Luna covers the same primary capability as ChatGPT and stacks additional dimensions on top — sovereign infrastructure, cross-device persistent memory, 92 agentic tools, and Heaven Code Studio for native app building. For most users, Luna is a genuine upgrade rather than a sidegrade.
ChatGPT has years of brand recognition and a mature community. If you specifically value those network effects, ChatGPT can be the right pick. Luna is the right pick when you value privacy/sovereignty, cross-device memory, and the capabilities that ChatGPT does not currently ship.
Yes. Free forever on iOS, Android, Web and macOS. The optional Chip subscription is $1.99 / month for 500 welcome tokens and unlimited persistent companions.
Yes. Luna runs on the Heaven Quantum Cortex with no third-party LLM in the hot path. Your conversations and memory live in your encrypted Memory Pod.