ZeroTwo is an AI app you use through a message box. You ask for something, and ZeroTwo answers, searches the web, makes images, works through tasks with tools or helps with code, depending on the mode you pick. It runs in a browser, as a desktop app, on iPhone and iPad, and on Android.
What can I do with ZeroTwo?
- Pick a mode. The tabs at the top of the chat switch between Chat, Work and Code. Work is the agent mode, where ZeroTwo takes on a task and uses tools to carry it out. Code is for programming tasks. The plans differ in what they include; Compare plans in Settings > Billing lists the differences.
- Use tools from the message box. The + button adds files and folders and offers tools: Create image and Web Search in Chat mode. Deep Research is a plugin you start by typing
/deep-researchin your message. Answers that cite sources show a Sources button you can select to see them. - Talk instead of typing. When the message box is empty, its send button becomes a voice button named "Start voice conversation".
- Keep your context. Projects in the sidebar (button: "New project") keep chats, files and custom instructions in one place. Settings > Personalization has Memory and Custom instructions.
- Connect your apps. Customize in the left rail holds Plugins, Skills and Connectors, which shape how ZeroTwo works with you. See Connectors and plugins for the apps you can connect.
Which models does ZeroTwo use?
ZeroTwo offers models from several AI providers rather than a single one. The model switcher in the chat header lets you choose. It also has an Auto option, which is ZeroTwo's own router rather than any provider's model and routes to a fast, low-cost model.
Where can I use ZeroTwo?
| Where | How to get it |
|---|---|
| Web | Open app.zerotwo.ai and sign in. |
| Desktop | Download from zerotwo.ai/download: macOS on Apple Silicon (.dmg), Windows x64 (the installer also runs on Windows on ARM through emulation), or Linux x64 (AppImage or .deb). |
| iPhone and iPad | The ZeroTwo app on the App Store. |
| Android | The ZeroTwo app on Google Play, for Android 12 or newer. See How do I install the ZeroTwo Android app from Google Play? |
The web, desktop and mobile apps sign in to the same account and share the same conversations.
Do I need an account?
Yes. If you open app.zerotwo.ai without being signed in, you are sent to the sign-in page, which is headed "Log in or sign up". There you can continue with Google, Apple or Microsoft, continue with a phone number, or enter your email address to receive a magic link that expires in 1 hour.
What does ZeroTwo cost?
ZeroTwo has a Free plan and paid plans named Plus, Pro, Pro 2×, Ultra, Ultra 2× and Business. Metered models, paid tools, images, video and deep research draw from a credit balance. Light chat uses very few credits, and purchased credits never expire.
A Free account starts with 100 welcome credits and gets 20 more each day you log in. To compare plans, open Settings > Billing and choose Compare plans. To see your usage, open Settings > Usage.
How do I get help?
Select the question-mark button ("Help and what's new") next to your name at the bottom of the sidebar, then choose Help. The submenu includes Documentation, Support, FAQs, Send Feedback and Report Bug. FAQs opens this Help Center.