FAQ

General

What is 9xChat?

A private, agentic AI workspace. Chat with every major model, search the live web, write notes, generate images and build your own agents, with your work kept on your own device.

Which platforms are supported?

Windows, macOS and Linux on desktop, and Android and iOS on mobile. One UID and one plan work across all of them.

Do I need to sign up or log in?

No. There is no email, no password and no form. On first run 9xChat creates a private UID, your account credential, and asks you to save it. Paste it on your other devices instead of creating a new one. See Your UID and devices.

How quickly can I start?

In under a minute. Install the app, choose Create my free UID, and ask your first question. Your welcome credit means no API key is needed to start.

Do I need technical knowledge?

No. 9xChat works out of the box with cloud models. Local models, your own API keys, tools and MCP servers are there when you want more control.

What makes 9xChat different from a regular AI chat app?

It is a workspace, not a chat box. Every major model in one place, live web search with citations, agents with their own tools and memory, notes with an AI Editor, an image studio, a Code workspace and Handoff between your devices.

Trial and pricing

Is there a free trial?

Yes. Every UID created in the app includes a 3-day trial with all Pro features plus $1.00 of AI credit. No card is needed, and nothing is deleted when it ends. See Free and Pro.

Is 9xChat free?

Yes. Chats, notes, agents, prompts, knowledge, memories and the image playground are free. Pro adds live web search, agentic tools, voice chat, multiple tabs, the Quick Assistant, the Code workspace, Handoff and use on 3 devices.

Do I need an API key to get started?

No. New UIDs get $1.00 of AI credit to try cloud models straight away. You can also bring your own key at any time.

What are welcome credits?

The $1.00 of AI credit that comes with a new UID. It pays for real requests to 9xChat models, so you can try them before buying credits or adding your own key.

How does pricing work?

Two separate things: Pro unlocks the app's paid features, and credits pay for AI usage when you use 9xChat's own models.

• Pro: $4.99 a month, $24.99 a year, or $49.99 once for lifetime.
• AI credits: $1 each. Add them at checkout with any plan, or top up whenever you want. They do not expire.

Pro prices vary by country, as with 9xBuddy. AI credit prices are unchanged and have no regional discount. Pro + AI is no longer sold on the web; existing purchases keep their Pro access and credits.

Does Pro renew automatically?

No. Pro is bought as time, on every platform, and nothing renews on its own. Add more time whenever you choose.

Can I bring my own API key?

Yes. Add keys for OpenAI, Anthropic, Gemini, DeepSeek, Mistral, Grok or OpenRouter under Library → Models. You pay your provider directly, and models on your own key are never locked on any plan.

Features

Which AI models can I use?

Models from OpenAI, Anthropic (Claude), Google (Gemini), xAI (Grok), Mistral, DeepSeek and more, through 9xChat credits or your own keys. On desktop, add local models through Ollama.

Does 9xChat support local models?

Yes, on desktop. The built-in Local Models manager downloads open models such as Llama, Qwen and Gemma and shows which ones fit your computer. Local models are free and private. See Local models with Ollama.

Can it search the web?

Yes, with Pro or during the trial. Answers come with citations you can open. See Web search.

Can I move a conversation from desktop to my phone?

Yes. Handoff sends a chat with a 6-digit code over an encrypted connection, without storing it on a server.

How does the mobile app differ from the desktop app?

Both have every cloud model, web search, tools, agents, notes, images and voice. Desktop adds local models, the Code workspace, the browser pane, the Quick Assistant and the tray. See 9xChat on Android and iOS.

Devices and account

How many devices can I use?

One on a free account or during the trial, and up to three with Pro. See Your UID and devices.

I see "Device limit reached". What now?

Remove a device you no longer use with Manage Devices, or on iOS from the license page. Then sign in on the new device again.

I bought Pro on my iPhone. Does it work on my computer?

Yes. A plan belongs to your UID, so every device that signs in with the same UID gets it.

Are my chats synced between devices?

No. Chats, notes and memories stay on the device where you made them. Move one chat with Handoff, or everything with a backup from Settings → Data & exports.

Still stuck?

Try Troubleshooting, or reach out through support.