Skip to main content
Astra Zenith宸星科技

We are Astra Zenith

Astra means stars. The zenith is the point directly overhead when you look up. We want our AI to work the same way: a clear direction at the moment you need to speak.

What we do

Most AI writing tools are good at writing but know nothing about the person you're replying to. Astra Zenith focuses on personalized communication: the AI first understands who you're talking to, your relationship and the context, and only then writes a draft.

That idea became three AI reply keyboards for dating, business and repeat questions. It has since grown into AI marketing services that bring the same understanding to a brand and its audience.

Astra Zenith logo

How we build products

Every product we make follows these principles.

It drafts, it never sends
The keyboard writes the reply. Pressing send is always up to you.
Know the person first
Replies are drafted from your relationship and the conversation, not from canned lines.
It asks before it learns
Learning your tone or saving a new reply as an answer starts only with your consent.
Your data is not our product
You can delete your account and data inside the app at any time.

Want AI to speak for your brand?

Tell us about your product and goals, and we'll look at where AI reply keyboards or marketing automation can help.