Private by design · Works offline · You hold the keys

A private, data-driven
companion for your
mental wellbeing.

Between therapy sessions, PearMind listens to your voice notes, moods and check-ins — then quietly connects the dots: what's fueling your anxiety, what's lifting you, and what's worth bringing to your next appointment. All on your phone. Nothing uploaded, nothing trained on. Your therapist sees only what you choose to share.

Private by design Works offline You hold the keys No cloud, ever

Good morning

Maya.

Small signals add up. Start with one.

Check in

How are you
right now?

😐
Rough6/10Great

Journal

On-device · never uploaded

A sentence is plenty.

Recent entries

Text·1d ago
sleep

Slept four and a half. That's two in a row. Cutting caffeine tomorrow.

Text·2d ago
workanxiety

Stand-up landed fine. Still felt behind. Told my brain to quit it.

Latest insight

CLUSTER14 journal entries · embedding clusters

A 'review / manager / Slack' theme shows up in 8 of your last 14 entries.

The embedding cluster around work-evaluation language is your most frequent this month, and 6 of those 8 entries sit on your lower-mood days. It's the biggest signal in your journal.

More noticed this week

Recommended for you

9:41
No cloud·On-device AI·End-to-end encrypted·You hold the keys·Built on open protocols
The Locked Box Protocol

Your data never
leaves your body.
Our protocol.

Most "privacy" apps just promise. PearMind makes it impossible for us to break the promise — your phone holds the only keys, sharing expires on a timer you set, and we never run a database with your story in it.

Patient device

Locked box

Audio · encrypted
Transcripts
Vectors
Facts
private_key · local only

Decryption permit

wrapped_key: 0x8f2a…c41d

ttl: 90 days

scope: snapshot_v2

Expires in87d 4h

Therapist device

Clinical snapshot

Sentiment trend
Distortion counts
Value–action gaps
Red flags
key unwraps · until TTL

When the permit expires, the patient's device refuses to re-issue the session key — rendering the therapist's local copy unreadable.

Local-first

Built on Pear Runtime

Audio, vectors, transcripts, and facts live on your device — not in our database.

Peer-to-peer

Holepunch tunnels

Sessions traverse NATs via DHT. We can't wiretap what we never see.

Time-limited

TTL-enforced access

Every share is a permit with an expiration. Revoke at any time, in one tap.

How it works

From your phone to your therapist.

You check in, journal and practice. PearMind quietly turns it all into patterns about what's driving how you feel. You choose what, if anything, your therapist sees. Nothing leaves your phone without your permission.

1
You

Check in, journal, practice

Two minutes a day. A mood tap in the morning, a one-minute voice note when something's on your mind, a mindfulness exercise your therapist shared.

  • Rate your mood
  • Record voice journals
  • Do mindful practices
2
PearMind

Patterns quietly emerge

On-device AI connects the dots across days and weeks — what's fueling your anxiety, what's lifting your mood, what's worth a closer look.

  • Runs on your phone, no cloud
  • Clusters themes & moods
  • Surfaces what matters
3
With your therapist

Share only what you choose

Walk into your next session with a clear snapshot. Your therapist sees moods, patterns and practice progress — only the parts you approve.

  • You decide what to share
  • Time-limited access
  • Revoke any time

For patients

A companion that learns your patterns —
not your passwords.

PearMind isn't an AI therapist. It's a quiet companion that notices the patterns in how you feel over time — so you understand yourself better, and your therapist can help you faster. Your story stays on your phone. You choose what, if anything, to share.

🎙️

Voice-first journaling

Speak for a minute. Your phone turns it into a calm, searchable record of mood, themes and context — on the device, never uploaded.

🌿

Patterns, surfaced gently

Over weeks, PearMind quietly notices what affects you most — sleep, people, places, habits — and shows you the patterns you'd miss on your own.

🧘

Guided mindful practices

Short, science-backed practices your therapist hand-picks for you — thought records, breathing, grounding, gratitude — guided right on your phone.

📽️

Private video sessions

Meet your therapist over a direct, end-to-end encrypted connection. Nothing is recorded to a cloud.

🪪

You choose what to share

Your story stays on your phone. Share a snapshot with your therapist on a timer you set — and take it back any time.

🔋

Light on your phone

Designed to stay out of the way. Fast, battery-light, and works offline — even on airplane mode.

For therapists

Data-driven care,
without the data hoarding.

Every session opens with a Clinical Snapshot — a structured, signed summary of the patient's 14 days. Spend less time reconstructing; more time helping.

Clinical Snapshot

Structured JSON, not raw audio. Sentiment trajectory, distortion counts, value-action gap, flagged behaviors.

Evidence-based library

35+ mindful practices across CBT, DBT, ACT, and Positive Psychology — shared with your patient in a tap.

Automatic red flags

Automatic alerts when sleep and mood both dip over several days — plus 14 other clinical markers worth catching early.

Pseudonymous caseload

Patients by code. Zero identifiable data at rest. Fully HIPAA-compatible architecture.

Session transcripts, privately

Your notes stay on your device. The patient's transcript stays on theirs. No shared cloud buckets.

Permit-based access

When a patient ends treatment, keys expire. Their chapter of data closes cleanly.

Mindful practice library

35+ evidence-based
mindfulness practices.

Curated with clinicians. Adapted for phones. Selected by your therapist based on your snapshot — and shipped via peer-to-peer sync.

CBT

Cognitive Behavioral Therapy

Thought records
Behavioral activation
Cognitive restructuring
Exposure hierarchies

DBT

Dialectical Behavior Therapy

Box breathing
5-4-3-2-1 grounding
Distress tolerance diary
TIPP crisis skills

ACT

Acceptance & Commitment

Values-alignment check
Cognitive defusion
Committed-action plan
Workability matrix

Positive

Positive Psychology

Gratitude journal
Kindness logs
Three good things
Strengths spotting

The promise, in plain English

Your story, under
lock and key — yours.

These aren't marketing claims — they're the way PearMind is built. Your phone does the work, your phone holds the keys, and we can't look inside even if we wanted to.

Runs on your phone

The whole app lives on your device. No sign-ins to a cloud dashboard, no servers crunching your data in the background.

AI that stays with you

Your voice notes and check-ins are read, summarized and searched on your phone. Nothing leaves it unless you choose to share.

Patterns built from your life

PearMind learns from your own history — so the patterns it surfaces are about you, not the average user.

Your records stay yours

Everything is stored encrypted on your device. No copies sit in our database for anyone to subpoena, leak, or mine.

Direct, encrypted sessions

Video calls with your therapist go straight between your devices. There's no middle server to record, listen in, or go down.

Quiet and offline-first

Journaling and insights work on airplane mode. Fast, battery-light, and there when you need it — no signal required.

Built on open, auditable protocols. If you want the engineering details, they're all in the open — not hidden behind a sales call.

· On your phone ·No cloud· End-to-end encrypted ·You hold the keys· Share on a timer ·Works offline· HIPAA-ready ·Open by design
· On your phone ·No cloud· End-to-end encrypted ·You hold the keys· Share on a timer ·Works offline· HIPAA-ready ·Open by design

Questions, answered

You'll ask these.
So will your security team.

No — and it's not an AI therapist either. PearMind is a quiet companion that helps you notice patterns in how you feel over time, so the work you do with a licensed therapist goes deeper and faster. It's always meant to be used together.