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Pulsyn
Agentic Health Intelligence

Meet Milo

Your Always-On Health Agent

Milo is the Pulsyn Agent — an autonomous AI that reasons about your health data, catches what you miss, and optimizes your timing. Private by design, powerful by nature.

"I noticed your HRV trending down — here’s what I’d check…"
On-device AI included free Data anonymized, never sold Agentic reasoning with tool use

An engineer for your body

Milo doesn't just respond — it reasons. Every insight follows a structured thinking process: analyze, cross-reference, and synthesize.

Think
plan_actions

What’s affecting your energy?

Identifies the right question and selects which tools to invoke.

Analyze
analyze_sleep

Sleep score: 62 · Deep sleep: 45min

Pulls last night’s architecture and compares to your baseline.

Search
search_history

Found: “Coffee at 4pm” in journal

Finds correlating lifestyle factors from your journal entries.

Insight
generate_insight

Late caffeine suppressed deep sleep by 34%

Synthesizes into actionable guidance: caffeine before 2pm this week.

Powered by RAG memory, health tools, and multi-step reasoning

A full-stack health agent

From raw sensor data to actionable wisdom — Milo handles the full pipeline.

Waypoints: Your Timing Advantage

Milo predicts your peak focus, optimal exercise window, caffeine cutoff, and wind-down based on your circadian data. Updated daily.

Catches What You Miss

Background anomaly detection and illness prediction — alerts only when it matters.

Ask Anything

Natural language questions about your health with data-backed, contextual answers.

Remembers Everything

Milo cross-references months of health history and journal entries to spot patterns you’d never notice.

Works, Not Just Talks

Analyzes sleep, predicts trends, searches your history, and updates your journal autonomously.

Intelligence at the Edge

On-device anomaly detection and illness prediction run directly on your ring — no cloud needed. Free for every user.

See Milo in Action

Step through real conversations to see how Milo turns your health data into personalized guidance.

Milo
Morning Briefing
Good morning, Milo! How did I sleep?
✓ analyze_sleep
Sleep Score 87/100
Deep Sleep 1h 42m
HRV 58ms (above baseline)
Recovery Fully recovered

Good morning! Here’s your overnight summary:

You had one of your best nights this week.

Mission 1 of 5

Waypoints: Your day, optimized

Milo predicts your body's ideal windows for focus, exercise, caffeine, wind-down, and recovery — updated daily based on your biometrics.

Peak Focus

9:00 – 11:30 AM

Your cognitive peak based on sleep quality and circadian phase.

Recovery Window

1:00 – 2:00 PM

Best time for a nap or meditation based on your sleep debt.

Caffeine Cutoff

2:00 PM

Last safe caffeine intake to protect tonight’s deep sleep.

Exercise Window

4:00 – 6:00 PM

Optimal training window from recovery score and HRV trends.

Wind Down

9:30 PM

Begin winding down based on your ideal sleep onset.

Your data, your choice

Free keeps everything on-device. Pro unlocks cloud power — only if you opt in.

$0/month

Free Plan

Everything stays on your phone

  • On-device AI processing (Pulsyn Agent 3B)
  • No internet required for core features
  • All data stored locally on your phone
  • Zero data transmission
Local-only privacy
$10/month Cloud-Powered

Pro Plan

You control your data

Keep Local
Cloud Sync

You control the switch

100x more power
Faster speeds
  • Agentic AI with tool use & proactive monitoring
  • Cloud models for deeper insights
  • Anonymized & encrypted when cloud is used
Control your privacy mode

Never sold

Your data is never sold to third parties

Never trained on

Your data is never used to train AI models

Never disclosed

Your data is never shared with anyone

Always deletable

Full data deletion on request, immediately

Whether you choose local-only or cloud-enhanced, your privacy is protected. Pro users who enable cloud sync get anonymized, end-to-end encrypted processing — and can switch back to local-only at any time. We will never sell, share, or monetize your health data.

Read our full privacy policy

How Milo works under the hood

A hybrid intelligence stack that keeps your data private while delivering cloud-grade insights.

You

Waypoints · Alerts · Chat · Reports · Journal

Free On-Device Processing

Pulsyn 0.8B + 4B Agents

0.8B always-on + 4B full on-device — fully private

Zero data leaves your device
Pro Cloud-Enhanced Agent

Pulsyn 4B + 27B Agents

4B cloud (fast) + 27B cloud (deep analysis)

Anonymized & E2E encrypted

Milo Core

RAG Memory · Health Tools · ReAct Reasoning

Ring Sensors

Sleep · Heart Rate · HRV · Temperature · SpO2 · Activity

All data is anonymized before cloud processing. Raw biometrics never leave your device.

Pulsyn 0.8B · 4B · 27B are domain-specific finetunes of Qwen 3.5, optimised for agentic health reasoning.

Milo notices what you miss

Milo runs in the background analyzing your data. When something matters, you'll know.

+0.8°C temp

Early illness signal detected

Your skin temperature rose 0.8°C above baseline while HRV dropped 22%. Consider resting — you may be fighting something off.

89 → 64

Recovery declining — 3-day trend

Your recovery score has dropped from 89 to 64 over 3 days. Training load is outpacing adaptation. Milo recommends a recovery day.

–28% deep sleep

Your sleep architecture changed

Deep sleep down 28% this week. Correlates with later bedtimes (avg shifted 45min). Milo suggests an earlier wind-down Waypoint.

3 days elevated

Elevated stress detected

Resting HR elevated during work hours for 3 consecutive days. Journal entries mention deadline pressure. Consider scheduling recovery breaks.

Milo connects the dots between your biometrics, journal entries, and daily patterns — so you don't have to.

Simple, honest pricing

Every Pulsyn ring ships with on-device AI. Upgrade to Milo Pro for cloud-powered intelligence.

On-Device AI

Free with every ring
  • 0.8B always-on model + 4B full on-device model — fully private, no cloud needed
  • Daily health summaries (on-device)
  • Sleep, HR, HRV, and temperature tracking
  • Basic Waypoints (Peak Focus, Wind Down)
  • On-device anomaly detection
  • Local RAG memory
Included with every ring

Included with Rune 1

Milo Pro

Cloud-Powered
$10 /month
  • Everything in On-Device AI, plus:
  • 4B cloud model (fast responses) + 27B cloud model (deep analysis)
  • Milo conversational agent with tool use
  • All 5 Waypoint types + dynamic adjustments
  • Proactive illness detection & multi-week trend analysis
  • Weekly AI-generated health reports
  • Web-augmented insights (latest research)
Premium AI experience

Ready to meet Milo?

An always-on health agent that thinks, reasons, and respects your privacy. Free on-device AI with every ring.

On-device AI features included free with every Pulsyn Rune 1. Milo Pro available for $10/mo.