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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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Cursor
S
DeepSeek
S
Skye
A
Perplexity
S
TaglineVS Code fork that made AI coding actually work.Chinese open-weight powerhouse. Crazy cheap, genuinely smart.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.AI search done right. Cited answers, not chat theater.
CategoryCodingChatbotsAgentsResearch
PricingFree + $20/mo Pro + $40/mo BusinessFree web + ultra-cheap API (~$0.14/M input tokens)Waitlist / Beta (pricing not yet disclosed)Free + $20/mo Pro
Best forDevelopers. Non-developers who want to ship working code.Developers + cost-conscious builders. Anyone fine with self-hosting.iPhone power users who are frustrated that Siri is still reactive and want their home screen to actually anticipate their day.Replacing Google for any question where you want a cited answer in seconds.
Strengths
  • Tab completion feels like mind-reading
  • Composer for multi-file edits
  • Runs Claude, GPT, Gemini — you pick
  • Open weights you can self-host
  • Strong reasoning + math
  • Near-free API pricing
  • DeepSeek-V3 / R1 are serious models
  • 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
  • Sources every claim
  • Fast, current answers
  • Pro Search runs multi-step research
  • Spaces for persistent context
Weaknesses
  • Can feel overwhelming for non-coders
  • Expensive at scale
  • Data goes to servers in China — privacy concerns for business use
  • Chinese policy filters
  • English polish trails Western models
  • 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
  • Not a general chatbot
  • Answers can be shallow on complex topics
Kai's verdictS-tier for coding. If you write code of any kind, this pays back the $20 in a day.S-tier for price/performance. A-tier for consumer use. If you build apps, this is the budget pick.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 search. I use it before Google now. If you're still Googling everything, try this for a week.
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