Catcher
Sign up My account
Private beta · Android

An ally
by your side.

Training, nutrition, sleep, lab work and video technique analysis — all in one app. You talk to it, send photos, upload videos; the AI coach logs, analyzes and acts for you.

Create free account Download the app How it works

Free during the beta · No credit card · Android · Early users keep a lifetime discount

Local-first Ad-free No data selling
Explore AI coach Live voice Realtime Smart training Health team vs. the rest
AI coach
0+ skills
Real actions it runs for you — powered by Gemini
Food databases
0sources
FatSecret · USDA FoodData · Open Food Facts
Lab work
0 biomarkers
Recognized from your PDF results
Privacy
100% local-first
Your data lives on your phone
Compatible with
🏃 Strava ⚖️ Withings ⌚ Garmin ❤️ Health Connect ✨ Google Gemini 🍎 FatSecret 🌍 Open Food Facts 🥗 USDA FoodData Central ☁️ Google Drive
What Catcher does

One app for your health. No more juggling five.

Log with voice, photo or video — the AI does the work. Training, nutrition, sleep, lab work and technique analysis, all connected and conversational.

AI coach that acts for you

It doesn't just answer — it executes. Generates training and nutrition plans, logs by voice, builds shopping lists, saves AI-powered notes and remembers your context between sessions.

Log with voice, photo or video

Photo your plate and it recognizes the food. Photo your grocery receipt and it loads the purchase. Voice to log workouts, meals or notes in seconds.

Training measured seriously

Exercise catalog, sessions with sets, reps and RPE, volume per muscle group, composite fatigue index (SIQ) and muscle-by-muscle recovery.

All your lab work in one history

Upload the PDF and the AI recognizes dozens of biomarkers. Multi-year trends and cross-references with weight, body composition and sleep.

Analyze your technique on video

Upload your squat, bench press or row. The coach counts reps, evaluates your form and flags what to correct.

A coach that remembers you

It remembers you're vegetarian, your injury and what you left pending — across conversations. Transparent: open the Memory Inspector to see, edit or delete anything it knows about you.

Build your own tools

Describe the tool you want — "show my breakfast protein trend" — and the coach builds it. Preview it, install it, even schedule it to run on its own.

Your health team, connected

Share your data with your doctor, coach, nutritionist, partner, family or friends. Two-way, granular and revocable.

Mood, sleep and recovery

Log how you feel in one tap. The coach reads your mood, sleep and body battery to adjust tone and training — comprehension first, pushing second.

Local-first. Works offline.

Your database lives on your phone: the gym basement, the plane, everywhere. Optional cloud backup to restore everything on a new device — and your data is never sold or used to train AI.

AI Coach

Reasons over your context. And acts.

Watch what happens inside the coach: it pulls your data, runs the right skills, computes the answer, and shows the report — in seconds.

The demo below is scripted — create your account and the coach answers with your real data.

A coach with character — it reacts to how you're actually doing.

See more coach examples
Live voice mode

A real call with your coach.

Double-tap the coach button and just talk. Catcher greets you first — it already knows today's plan — logs what you ask for, and even navigates the app for you, lighting up the real buttons on screen.

Hands-free, mid-set

Talk while you train, cook or drive. Interrupt it naturally — it stops and listens, like a real call. Say "done" and it hangs up.

It greets you knowing your day

Every call starts fresh, but the coach already knows your plan, your rest and your latest numbers — no need to explain yourself.

It acts, out loud

Ask for your routine and it loads it, log your weight and it saves it — confirming sensitive actions by voice before touching anything.

Live call 00:00 Gemini Live
Good morning! Push day today: bench press, 4×6 at 72.5 kg. Ready to start?
Yes — and log that I weighed 78.2 this morning.
✓ Weight logged · 78.2 kg
Saved. Rest timer set to 90 seconds — tell me each set and I'll log it for you.
Illustrative demo — real sessions run on Gemini Live
Realtime coach

It doesn't wait for you to ask.

Catcher watches what you log — sets, meals, sleep, mood — and steps in with the right suggestion at the right moment. You always have the last word.

Initiative without control

The coach proposes; you accept, reject or snooze with one tap. It never changes your data on its own.

Right moment, right context

It reads your plan, sleep, meals and mesocycle before acting. No generic advice — every suggestion cites your real data.

It knows when to stay quiet

Quiet hours at night, no interruptions in meetings, and it never insists after a "no". Proactive, not invasive.

Today with Catcher watching
Morning briefing 07:30

Today's plan is ready

Push day: 4 exercises, ~45 min. Weights anchored to your last real lifts.

View plan Later
Done
During your workout 18:12

Adjustment suggested

Your 3rd squat set slowed down. Drop 2.5 kg to keep your form clean.

Apply Ignore
Done
Post-workout 19:05

Anabolic window open

You finished 20 min ago and you're 32 g short on protein today — a shake would cover it.

Log it Later
Done
Risk detected 08:45

Low sleep + heavy day

You slept 5 h 40 m and today was heavy legs. I suggest a reduced version of the session.

Accept Keep plan
Done
Smart training

Periodization that detects itself.

No forms, no phase selector: Catcher reads your training history, detects your mesocycle phase and plans today's session with the weights you actually lift.

Real weights, not templates

"@72.5 kg" means you lifted it last session. New exercise? It estimates and marks it with "~" — honest numbers, always.

Deload when you need it

Accumulated fatigue or reduced frequency → the coach proposes unloading and the plan adapts automatically. ACWR and strain watch your back.

Coach and home always agree

One deterministic planner feeds both. The plan you preview is exactly the plan that loads — no surprises.

Strength · Week 6 Detected from your training
Today · Push 4 exercises · ~45 min
Bench press 4×6 @72.5 kg
Incline dumbbell press 3×8 @28 kg
Overhead press 3×8 ~40 kg
Dips 3×AMRAP BW
= your last real lift · "~" = estimated. What you preview is what gets loaded.
Activity Replay

Re-run your activity, kilometer by kilometer.

Open any cardio session and watch it replay on the map: every KM, your live heart rate, pace, calories — synced second by second. Catcher uses this same timeline to match your runs and project recovery.

Frame-perfect

Every second on the map.

Heart rate, pace and elevation tied to GPS. Scrub to any point and the stats jump with you.

KM splits

See where you broke pace.

Markers per KM with split time and pace delta. Spot the climb that cost you 12 seconds.

Matched runs

Compared to your past.

Catcher detects when you ran the same loop before and overlays your PR ghost so you race yourself.

Comparison

Catcher vs. the rest.

Others log. Catcher analyzes, connects, plans and acts on your data.

Catcher MyFitnessPal Whoop Strava
Multi-modal logging (photo, voice, receipt) ✓ Partial — —
Training metrics (volume, SIQ, recovery) ✓ — Global —
Multi-year lab work timeline ✓ — — —
AI coach with skills that run actions ✓ — — —
Real-time voice call (hands-free coaching) ✓ — — —
Proactive coach — acts without being asked ✓ — Partial —
Automatic mesocycle detection ✓ — — —
Video technique analysis + rep counting ✓ — — —
Network for doctor, coach, family ✓ — — —
Ad-free · data on your phone ✓ — ✓ —

Based on each product's public features as of May 2026. Names belong to their respective owners.

Catcher Network

Your health team, connected.

Share routines, meals, lab work and progress with your coach, doctor, nutritionist, training partner or family. Bidirectional, granular and revocable in one tap — no spreadsheets, no screenshots.

Send & receive

Routines, meals, labs.

Your coach pushes a workout plan, your nutritionist a meal plan, your doctor a follow-up note. All applied with one tap.

Granular permissions

Decide what each one sees.

Per role, per metric, per date range. Your doctor sees lab work; your coach sees training. Family only sees the streak.

Revocable

One tap and the link is cut.

Disconnect a contact and any past view permission is gone. No data lingers on the other end.

Integrations

Connect what you already use.

Centralize your data: your Strava cardio, your Withings weight and body composition, your Garmin activity and your Health Connect metrics flow in automatically — and the coach uses all of them in every answer.

🏃
Strava
Outdoor cardio
⚖️
Withings
Weight · composition
⌚
Garmin
Activity · sleep
❤️
Health Connect
14 Android metrics
✨
Google Gemini
AI coach engine
🍎
FatSecret
Food database
🥗
USDA FoodData
Reference nutrients
How to start

Three steps. Five minutes.

01
Step 1

Create your account

Email + password or continue with Google. Same account for web and app.

02
Step 2

Install the app

Log in with the account above and connect your wearables in 30 seconds.

03
Step 3

Talk to the coach

By chat or voice, in real time. It knows your HRV from last night, your blood work and what you told it last week.

Who it's for

For anyone who takes their health seriously.

Catcher isn't built for a single profile — it adapts to what you need to measure and who you want close.

Log workouts with sets/reps/RPE, upload videos so the coach evaluates your technique, track volume per muscle group and recovery. Share progress with your coach or training partner.

If you train seriously

Upload years of lab work in PDF: the AI recognizes biomarkers, builds the timeline and explains what each parameter means. Arrive at your appointment with context, not screenshots. Share with your doctor when you want.

If you want to organize your medical history

If you're a doctor, coach or nutritionist, connect with your users via the Catcher network and review their progress: nutrition, training, sleep, lab work — without asking them for screenshots or spreadsheets.

If you work with patients or athletes
Data stays on your phone
No AI training on your data
Local-first
Validated physical formulas
No data selling
Founding member — lifetime discount at launch

Join the private beta.

Free. No credit card. No ads. Your data lives on your phone — not on our servers.

Create account Download the app

Free during the beta · No credit card · Android

QR code to download Catcher
On your computer?
Scan with your phone to get Catcher for Android.
Important

Catcher is an informational tool, not a medical device. It does not replace diagnosis or treatment from a healthcare professional. For any serious symptom, consult your doctor.

Free private beta No card · No ads
Start