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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
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Skye
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TaglineCognition Labs' autonomous coding engineer.Terminal-based AI pair programmer. Git-aware, model-flexible.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.Build a full app from a prompt. Stripe-ready.
CategoryAgentsCodingAgentsDesign
Pricing$500/moFree (open source) + whatever API you useWaitlist / Beta (pricing not yet disclosed)Free + $25-$100/mo
Best forEngineering teams offloading tickets. Ops/platform work.Developers who want open-source tooling with full control.iPhone power users who are frustrated that Siri is still reactive and want their home screen to actually anticipate their day.Non-devs + solopreneurs shipping MVPs.
Strengths
  • Works like an engineer — takes Slack tasks, opens PRs
  • Handles multi-hour engineering work
  • Reports back with what it did
  • Works in any terminal
  • Auto-commits changes with meaningful messages
  • Works with any model (Claude, GPT, local)
  • Minimal learning curve
  • 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
  • Generates full apps + DB + auth
  • Good for non-developers
  • Ships faster than hand-coding
Weaknesses
  • Expensive
  • Best for well-scoped tasks
  • Not for solo hobbyists
  • Terminal-only
  • Less agentic than Claude Code
  • Setup on Windows is fiddly
  • 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
  • Complexity ceiling
  • Can generate brittle code
Kai's verdictA-tier for the right use case. Not for solo devs. If you manage engineers, try one license.A-tier. The right answer if you want open-source + terminal-native + model-agnostic.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. The strongest 'no-code' AI builder right now. Great for founder MVPs.
LinkOpen →Open →Open →Open →