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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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Devin
A
Skye
A
Windsurf
A
GitHub Copilot
B
TaglineCognition Labs' autonomous coding engineer.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.Codeium's agentic IDE. Cascade agent + strong free tier.Microsoft/GitHub's autocomplete. Deep VS Code + JetBrains integration.
CategoryAgentsAgentsCodingCoding
Pricing$500/moWaitlist / Beta (pricing not yet disclosed)Free + $15/mo ProFree (limited) + $10/mo Pro + $19/mo Business
Best forEngineering teams offloading tickets. Ops/platform work.iPhone power users who are frustrated that Siri is still reactive and want their home screen to actually anticipate their day.Developers who want Cursor-like power for less money.Teams with GitHub already. Devs who don't want to change IDEs.
Strengths
  • Works like an engineer — takes Slack tasks, opens PRs
  • Handles multi-hour engineering work
  • Reports back with what it did
  • Ambient, proactive intelligence delivered via native iOS widgets — no app-switching required
  • Cross-domain context: health, calendar, email, finances, and local recommendations in one layer
  • Works within iOS permission model (no jailbreak or sideloading), making App Store approval plausible
  • Strong pre-launch signal: 25k+ waitlist and backing from a16z, True Ventures, and SV Angel
  • Cheaper than Cursor
  • Cascade agent for multi-file tasks
  • Solid free tier
  • Great enterprise story
  • Works in your existing IDE
  • Chat + autocomplete
Weaknesses
  • Expensive
  • Best for well-scoped tasks
  • Not for solo hobbyists
  • Still pre-launch / beta — zero proven track record and no public pricing yet
  • iPhone-only by design, which immediately locks out half the smartphone market
  • Battery drain and privacy concerns from constant ambient context scanning are real and unresolved
  • Smaller community
  • Model selection more limited
  • Less agentic than Cursor/Claude Code
  • Model quality varies
Kai's verdictA-tier for the right use case. Not for solo devs. If you manage engineers, try one license.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.)A-tier. Close second to Cursor. If $5/mo matters, start here.B-tier. Solid for autocomplete but the category moved past it. Pick Cursor unless you can't.
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