One product. Five ways to receive it.
Sentinel is a single early-warning system. The tiers differ in how loudly we tell you, how fast we deliver, and how deeply you can extend it. Everyone gets the same receipts.
- Public dashboard, read-only
- Eagle Eye public page (full access)
- Daily digest email — 1 receipt/day, 24-hour delayed
- Web access only — no push, no SMS
- Email signup only — no credit card
- Geographic Pulse (read-only, 24h delayed)
- Everything in Quiet Watch
- Real-time email alerts for Heads Up and Red Alert events
- Web push to browser and PWA
- Full receipt archive (back to v0.9 launch)
- Regional filters (set up to 3 watch regions)
- 30-day refund window, no questions
- Geographic + Sector Pulse, real-time. Watch up to 3 cells
- Everything in Heads Up
- SMS alerts — priority delivery within 60 seconds of human clear
- 3 named watchlists (region + cohort + signal-threshold)
- API read access — 100 requests/day
- Receipt PDF export with personalized watermark
- Founder’s Cohort pricing available (below)
- Pulse with live updates, unlimited watches, snapshot-to-share, morning brief email
- Everything in Red Alert
- 5 team seats included (additional seats $39/mo each)
- Dedicated Slack channel with our team
- Custom cohort definitions (we build them, you use them)
- Full API — 10,000 requests/day
- Webhook delivery for any alert tier
- White-label receipt exports (your logo, your domain)
- Pulse with team-shared watch lists, custom cells, webhook delivery
- Everything in Operator, with custom terms
- On-premises deployment options
- 99.95% SLA with named incident response
- Custom signal weights and private cohort models
- Dedicated analyst hours (8 / 16 / 40 per month)
- Procurement-friendly contracts (NET-60, redlines welcome)
- Private Pulse instances with custom cell taxonomies
“$9 forever — even on Red Alert.”
The first 100 people to subscribe to any paid tier get Red Alert pricing locked at $9/month for life. No price increases. No re-negotiation. You're underwriting the early product — we don't forget.
Share your receipts. We credit you a month.
Every receipt you share carries a quiet attribution link. When someone joins Sentinel through one of your receipts, we credit you one free month at your current tier — up to 12 months per year. It is not a referral program. It is a thank-you for being a node in the network.
rendered by the same pipeline that signs your receipts
When a receipt you got beats the news, we make it provable.
When a Red Alert you received is later corroborated by mainstream news within 24 hours, you get a shareable badge with the receipt hash and the exact time delta you beat the press cycle. Pin it to your X bio. Print it on a hoodie. We don't care — it's yours.
Recent receipts ranked by how long they led the news. Updates daily. No usernames — only receipt IDs and time deltas.
Send a month to someone who’d get it.
Every paid member can gift up to 3 free months per calendar month. The recipient activates with email only — no card required. Gifts cost you nothing. We built this for the people who want their friend / sibling / colleague / source to see what they see.
Available in your account settings after subscribing · try the flow →
Canceling is one click. We'll ask one question on your way out — what's one receipt that would have made it worth keeping — and the best anonymized answers eventually show up here, in their authors' own words.
Thirty-day refund on every paid tier. No questions. No retention call.
To refund, reply to any Sentinel email with the word “refund”. We process it the same business day.
No. We read public radio signals broadcast under federal mandate from aircraft and vessels operating in public airspace and waters. Every receipt is reproducible from public records. We are observers, not insiders. The full methodology — sources, model, and disclosures — is documented at /method.
Because real-time costs us money to deliver and is the upgrade signal. The 24-hour delayed feed is still useful — and journalists tell us it's the right window for context-rich reporting.
No. You can subscribe to Red Alert and disable SMS in settings. You'll still get priority email and push, plus the API access and watchlists.
Heads Up and Red Alert are personal. Operator includes 5 named seats. If you want to share Sentinel with your team, that's what Operator is for.
We've baked a clause into our incorporation: any acquisition must preserve the public Eagle Eye demonstration and the public receipt-share artifacts indefinitely. The viral artifacts are not for sale.
You get the rest of the cycle, then a downgrade to Quiet Watch. No surprise charges, no data deletion — your archive stays accessible forever.
Yes — email students@sentinel.app with a .edu address. We give 50% off Heads Up or Red Alert. No academic verification theater.
No. Not for ideological reasons — for brand reasons. Sentinel is a civic, public-interest product. Crypto signals speculation, which is the opposite of what we are.
The Founder's Cohort, while it lasts. $9/mo locked for life. After the first 100 slots, the next option is the standard $9 Heads Up tier, then $29 Red Alert.
Anyone who'd like a quiet, evidence-backed heads up before the next storm, market shock, or crisis hits the news. We don't have an opinion about what you do with that information — we just want you to have it as early as we can responsibly deliver it.
Pulse is the divergence map — Sentinel's daily surface that visualizes where the news is paying attention vs. where movement is actually happening. Receipts are the rare artifact; Pulse is what you check every morning. Most subscribers we've talked to wanted an ambient layer they could open daily, not just a notification product. Pulse is that layer.
Get the next receipt before the news does.
We write back within 5 business days. No marketing list. No follow-up spam.