Compare AI tools

	Skye A	NotebookLM S	Replicate S	Sudowrite 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.	Google's research notebook. Turns your docs into a podcast.	Run any open-source AI model with an API call.	AI writing tool built specifically for fiction writers.
Category	Agents	Research	Dev Platform	Writing
Pricing	Waitlist / Beta (pricing not yet disclosed)	Free	Pay per second of compute	$19-$59/mo
Best for	iPhone power users who are frustrated that Siri is still reactive and want their home screen to actually anticipate their day.	Students, researchers, anyone with a stack of PDFs or a topic to learn.	Developers using open-source models (Flux, SDXL, Whisper, etc).	Novelists, screenwriters, fiction short-form writers.
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	Upload anything, ask questions, get cited answers Audio Overview turns docs into a 10-min podcast Great for studying	Tens of thousands of models (image, video, audio, LLMs) One-line API for any model Cog framework for custom model deploy	Brainstorm, expand, rewrite modes designed for fiction Story Bible for character + plot tracking Understands voice + tone better than generic chatbots
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	Google-only Can be slow on large corpora	Cold starts on less-popular models Pricing gets real at scale	Pricey for casual use Fiction-only focus — not for business writing
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.)	S-tier for study. The Audio Overview is a killer feature. Try it with three of your favorite PDFs.	S-tier for open-source model APIs. The default in this space.	S-tier for fiction. If you're writing a novel, this beats raw ChatGPT every time.
Link	Open →	Open →	Open →	Open →