Compare AI tools

	Taskade B	NotebookLM S	Symphony A	Skye A
Tagline	AI project management with agents for each team.	Google's research notebook. Turns your docs into a podcast.	OpenAI's open-source daemon that turns your Linear board into an always-on coding agent factory — tickets go in, pull requests come out.	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.
Category	Productivity	Research	Agents	Agents
Pricing	Free + $8-$20/user/mo	Free	Free (open-source)	Waitlist / Beta (pricing not yet disclosed)
Best for	Small teams wanting AI baked into project management.	Students, researchers, anyone with a stack of PDFs or a topic to learn.	Engineering teams already using Linear + OpenAI Codex who want to stop babysitting agent sessions and instead let the issue tracker drive autonomous coding at scale.	iPhone power users who are frustrated that Siri is still reactive and want their home screen to actually anticipate their day.
Strengths	Custom AI agents per project Doc + tasks + kanban in one Affordable for teams	Upload anything, ask questions, get cited answers Audio Overview turns docs into a 10-min podcast Great for studying	Fully autonomous ticket-to-PR pipeline: every open Linear issue gets its own isolated Codex agent without manual supervision Fault-tolerant Elixir/OTP architecture automatically restarts crashed agents and manages hundreds of concurrent runs WORKFLOW.md keeps all orchestration policy version-controlled inside the repo, so agent behavior is reproducible and reviewable like code Proven internal results: OpenAI reported a 500% increase in landed PRs on some teams within three weeks Open spec encourages community re-implementations in any language, not just Elixir	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
Weaknesses	Feature sprawl AI agents need tuning to be useful	Google-only Can be slow on large corpora	Currently only supports Linear as an issue tracker — GitHub Issues and Jira integrations are not yet official Only OpenAI Codex is officially supported as the agent runtime; other model integrations are community-contributed and incomplete Self-hosted, Elixir-dependent engineering preview with no built-in sandboxing — not suitable for untrusted or production environments out of the box	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
Kai's verdict	B-tier. Solid product but crowded market. Try it if Notion AI feels too generic.	S-tier for study. The Audio Overview is a killer feature. Try it with three of your favorite PDFs.	Symphony is the most architecturally serious 'issue tracker as control plane' approach yet — 15K GitHub stars in weeks confirms the idea resonates — but it's still a rough, self-hosted engineering preview that demands Elixir chops and a Linear-only workflow. (Verdict pending Phi's full review.)	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.)
Link	Open →	Open →	Open →	Open →