Compare AI tools

	Skye A	Grammarly A	NotebookLM S	Claude Code 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.	Grammar check + tone + AI drafting, everywhere you type.	Google's research notebook. Turns your docs into a podcast.	Anthropic's CLI agent. Opus-powered, operates on your repo directly.
Category	Agents	Writing	Research	Coding
Pricing	Waitlist / Beta (pricing not yet disclosed)	Free + $12-$15/mo Premium + team plans	Free	Part of Claude Pro/Max/Team plans
Best for	iPhone power users who are frustrated that Siri is still reactive and want their home screen to actually anticipate their day.	Non-native English writers, business email, anyone who types a lot.	Students, researchers, anyone with a stack of PDFs or a topic to learn.	Developers who want an agent, not autocomplete. Large refactors, tests, docs.
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	Works in every browser/app Now has generative AI (GrammarlyGO) Tone detection + suggestions	Upload anything, ask questions, get cited answers Audio Overview turns docs into a 10-min podcast Great for studying	Runs locally, edits your actual files Strong on large codebases with 1M context Great at multi-step tasks
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 naggy Premium features gate basics Privacy concerns (reads your writing)	Google-only Can be slow on large corpora	Terminal-based — learning curve Can't be used without Claude subscription
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 non-native English speakers. B-tier if your English is already strong — Claude does better with tone.	S-tier for study. The Audio Overview is a killer feature. Try it with three of your favorite PDFs.	S-tier if you live in the terminal. Different shape than Cursor — complementary, not replacement.
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