A formula for intelligence.
Your whole AI stack. One subscription. None of your data.
72-hour free trial · No credit card required
AI shouldn't cost this much, sprawl this far, or know this much about you.
It's expensive
A typical AI subscription runs $20+ a month — per tool. Stack two or three and you're paying more for AI than for your phone plan.
It's fragmented
One app to chat, another to take notes, another to learn. Your work scatters across tools that don't talk to each other.
It's hostile to privacy
Most AI products route your data through their servers and train on what you give them. You shouldn't have to trade your privacy for intelligence.
One ecosystem. One subscription. Your keys, your data.
Neurolayer Labs is a family of AI tools built on a single formula: you bring your own API keys, your data stays on your device, and the whole ecosystem costs less than one typical AI subscription.
One continuous intelligence pipeline.
Four products. One formula.

NeuroBrowse
Intelligence on every page.
One-click AI summaries, cross-tab research, vision, and content tools in your browser sidepanel — 20+ AI models, your own keys.
Explore NeuroBrowse
NeuroNotes
Intelligence in every note.
Smart sticky notes that live in your browser — image capture, voice memos, 12 icon themes, 10 animated card patterns. Bundled with NeuroBrowse.
Explore NeuroNotes
NeuroLearn
Intelligence in every lesson.
Interactive lessons with quizzes, built on the same formula — your keys, your pace, your data. Gold lessons free on every account.
Explore NeuroLearn
NeuroFit
Intelligence in every step.
The ecosystem's analytics layer — productivity and health in one picture, not just fitness. Currently in development.
Sneak peekBuilt on principles, not promises.
Privacy-first, BYOK
Your API keys, your direct line to the AI providers. We never sit between you and your data.
Fair pricing
$10 tops — the whole ecosystem, never more. Most AI subscriptions run $20+ for a single tool.
Local-first
Your notes, summaries, and history live on your device — not on someone else's server.
Built by a user
Every product starts as something David needed himself. No committees, no dark patterns — just tools that earn their keep.
Privacy isn't our policy. It's our architecture.
Hey, I'm David.
Solo founder, self-taught builder, art background. I build privacy-first AI tools from the Indianapolis area because I got tired of choosing between paying too much and giving up my data.
Fair pricing. No surprises.
Every plan starts with a 72-hour free trial — full ecosystem access, no credit card required.
NeuroBrowse + NeuroNotes
- Students: $3/month with a .edu email
- You bring your own API keys
- Cancel anytime
Adds NeuroLearn
- Everything in the $5 tier
- Students: $6/month with a .edu email
Coming soon — Complete Ecosystem
- $8/month for students
- All products. One subscription.
- Unlocks when NeuroFit launches.
Honest math: plans run $5–$10 a month, and $10 is the ceiling — the whole ecosystem, never more. You also pay your own AI provider API costs on top — most users spend under $2 a month, and many start at $0. You control both sides of the bill.