Coming to Google Play

Your whole day.
One calm coach.

Sleep, steps, workouts, meals and habits in one place, scored every morning, with a coach that has actually read them.

For Android · Open source on GitHub

Good morning, Alex A
T
22F
23S
24S
25M
26T
27W
28
Today 19° · Partly cloudy
Recovery
Effort
Fuel
Morning brief · 07:30
Ready for the long run
Recovery is your best this week. Keep the first 3 km easy.
Oats, banana, whey
Breakfast · 08:10
520

Everything your body says.
Read in one place.

Fig. 01 · Cerebrum Sleep

It starts the night before.

Time asleep, quality and every stage, from whatever you sleep with. A short night is noticed, and today is planned around it.

7h 12m1h 42m deep
Fig. 02 · Cor Recovery

How ready you are, before you get up.

Resting heart rate and heart rate variability against your own normal. One number for whether today is a push or an easy day.

85
Ready to train
HRV 62 ms
Resting 52 bpm
Fig. 03 · Musculi Effort

A target that moves with you.

Workouts from your watch, strength sets in a tap, steps and active minutes. Well rested, it asks more. After a short night, it asks less.

  • Front squat4 × 6 · 80 kg
  • Easy run5.2 km
  • Steps8,412
Fig. 04 · Ventriculus Fuel

Eating to match the day.

Snap a photo, say it or scan a barcode. Values come from nutrition tables, so the same dish always gets the same numbers.

Paneer butter masala, rice612 kcal
Protein28 g
Carbs71 g
Fat24 g
Fig. 05 · Corpus Weight

Your trend, not the scale.

Step on a smart scale and it’s logged. The daily noise is smoothed into the one line that matters.

78.6kg
↓ 1.1 kg this month
Fig. 06 · Totum Your coach

One coach that reads all of it.

Ask anything and the answer starts from your night, your heart, your training and your plate.

“Short night and your HRV is down. I’ve moved Friday’s squats to Saturday. Today’s a 30-minute walk, and aim for 120 g of protein.”

Works with what you already wear, through Health Connect

Start the day
knowing where you stand.

Your watch, your meals and your habits, turned into clear answers you can act on.

Scores

Recovery, Effort and Fuel every morning, each against your own normal, with exactly what moved it.

The Recovery screen: a score of 85, ready to train, with sleep, resting heart rate and HRV below.

Food

Snap a photo, say it, or scan a barcode. Numbers come from nutrition tables, so the same dish gets the same values.

A logged meal, paneer butter masala with rice, with calories, protein, carbs and fat.

Coach

Ask anything. It knows your plan, your goal and how you slept, and can move a session for you.

A coach chat suggesting moving Friday’s strength session to Thursday after a short night.

Everything in one day.
Nothing counted twice.

Habits

Streaks that forgive.

One tap a day. Miss one and a freeze covers it, so a single off day never wipes out a month.

Two habits with their week of check-ins and streaks.
Strength

Log sets in a tap.

The strength logger with sets of front squats checked off.
Workouts

Every workout counts, once.

From your watch, merged when two apps saw the same one.

A 5.24 km run from Pixel Watch, with pace and heart rate.
Sleep

Every stage of the night.

Time asleep, quality and stages, from whatever you sleep with.

Last night's sleep stages, 6h 15m asleep at 96% quality.
Weight

Your trend, not the scale.

A weight trend of 78.6 kg, down 1.1 kg, with a month chart.
Weekly review

A Saturday read on your week.

A weekly review: a steadier week with more sleep and four active days.
Smart scale

Just step on.

Smart scale settings: listening, with a Weigh in now button.
Your coach

Pick how it talks to you.

Friend · warm and patient Commander · direct
Private by design

Your data stays yours.

  • Per-user security rules
  • No keys in the app
  • Meal photos kept as thumbnails
  • Progress photos end-to-end encrypted

Resurge is open source under the GPL-3.0. View the source →

Questions,
answered.

When can I get it?

Resurge is coming to Google Play. Join the waitlist and you'll get an invite to the test before it's out for everyone. The app is open source under the GPL-3.0.

Does it work with my watch?

Anything that writes to Health Connect: Fitbit, Pixel Watch, Samsung Health, Garmin and more. Workouts that show up from two sources are merged into one.

Where does my data go?

Your logs are stored under your account with per-user security rules, so only you can read them. The coach runs in Cloud Functions that call Claude; no API keys ship in the app. Or run your own backend.

Which phones are supported?

Android 8.0 or later. Steps, sleep and heart rate need Health Connect, which is built into Android 14 and newer and a free install before that.

Is there an iPhone version?

Not yet. Resurge is Android only for now.

Coming to Google Play

Join the waitlist

Resurge is coming to Google Play. Leave your email and you'll get an invite to test it first, and a note the day it's out.