Compare AI tools

	Skye A	Grok A	Perplexity S	NotebookLM S
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.	xAI's chatbot. Real-time X/Twitter data + fewer refusals.	AI search done right. Cited answers, not chat theater.	Google's research notebook. Turns your docs into a podcast.
Category	Agents	Chatbots	Research	Research
Pricing	Waitlist / Beta (pricing not yet disclosed)	Free + $30/mo SuperGrok + included with X Premium	Free + $20/mo Pro	Free
Best for	iPhone power users who are frustrated that Siri is still reactive and want their home screen to actually anticipate their day.	Breaking news, live event tracking, users already on X.	Replacing Google for any question where you want a cited answer in seconds.	Students, researchers, anyone with a stack of PDFs or a topic to learn.
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	Live access to X posts for real-time events Less restrictive on edgy questions Fast inference on Grok-3 and up	Sources every claim Fast, current answers Pro Search runs multi-step research Spaces for persistent context	Upload anything, ask questions, get cited answers Audio Overview turns docs into a 10-min podcast Great for studying
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	Writing quality trails Claude/ChatGPT Political bias debates Ecosystem is just X	Not a general chatbot Answers can be shallow on complex topics	Google-only Can be slow on large corpora
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.)	A-tier for real-time. B-tier for everything else. Worth checking when news breaks.	S-tier for search. I use it before Google now. If you're still Googling everything, try this for a week.	S-tier for study. The Audio Overview is a killer feature. Try it with three of your favorite PDFs.
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