Compare AI tools
Side-by-side: what they do, what they cost, what Kai actually thinks. Pass up to 4 tools via ?tools=claude,chatgpt,gemini.
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| Tagline | An agentic iPhone home screen that replaces your static icon grid with AI widgets that proactively surface health, calendar, finance, and local context — without you having to open a single app. | Run any open-source AI model with an API call. | Vercel's AI-powered UI generator. Prompt to shadcn component. | VS Code fork that made AI coding actually work. |
| Category | Agents | Dev Platform | Design | Coding |
| Pricing | Waitlist / Beta (pricing not yet disclosed) | Pay per second of compute | Free + $20/mo | Free + $20/mo Pro + $40/mo Business |
| Best for | iPhone power users who are frustrated that Siri is still reactive and want their home screen to actually anticipate their day. | Developers using open-source models (Flux, SDXL, Whisper, etc). | Frontend devs, PMs prototyping UIs, anyone on Next.js. | Developers. Non-developers who want to ship working code. |
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| Kai's verdict | The concept is genuinely compelling — turning the home screen into a living AI layer is a smarter bet than yet another chat interface — but this is vaporware until it ships publicly and we see whether Apple's sandbox lets it breathe. (Verdict pending Phi's full review.) | S-tier for open-source model APIs. The default in this space. | S-tier. If you're on Vercel/shadcn, this is cheating. | S-tier for coding. If you write code of any kind, this pays back the $20 in a day. |
| Link | Open → | Open → | Open → | Open → |