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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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Skye
A
Cursor
S
Grammarly
A
Hugging Face
S
TaglineAn 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.VS Code fork that made AI coding actually work.Grammar check + tone + AI drafting, everywhere you type.The GitHub of AI. Models, datasets, spaces — all in one.
CategoryAgentsCodingWritingDev Platform
PricingWaitlist / Beta (pricing not yet disclosed)Free + $20/mo Pro + $40/mo BusinessFree + $12-$15/mo Premium + team plansFree + $9-$20/mo + enterprise
Best foriPhone power users who are frustrated that Siri is still reactive and want their home screen to actually anticipate their day.Developers. Non-developers who want to ship working code.Non-native English writers, business email, anyone who types a lot.Any ML/AI developer. Hobbyists exploring open models.
Strengths
  • 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
  • Tab completion feels like mind-reading
  • Composer for multi-file edits
  • Runs Claude, GPT, Gemini — you pick
  • Works in every browser/app
  • Now has generative AI (GrammarlyGO)
  • Tone detection + suggestions
  • Largest open-source AI model hub
  • Hosted inference via Spaces + Inference Endpoints
  • Great community
Weaknesses
  • 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
  • Can feel overwhelming for non-coders
  • Expensive at scale
  • Can feel naggy
  • Premium features gate basics
  • Privacy concerns (reads your writing)
  • Overwhelming for beginners
  • Hosted inference pricing varies
Kai's verdictThe 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 coding. If you write code of any kind, this pays back the $20 in a day.A-tier for non-native English speakers. B-tier if your English is already strong — Claude does better with tone.S-tier infrastructure. The one platform every AI dev eventually uses.
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