/ˈsin.trə.pi/ · the inverse of entropy

Order, built
from chaos.

Syntropy reads your training, meals and recovery as one living system. Snap your thali, log your sets, and see exactly what your body needs today. Open source, private, on your phone.

Try the web demoAndroid APK
<2sPhoto to macros
1,324Guided exercises
170Indian foods built in
0Accounts or servers
Food log with calorie ring, water and meals
Home with the homeostasis dial
Roti × 2210 kcal · 94% match
Scanning a thali with Gemini Vision
AI nutrition · built for Indian plates

One photo.
Every roti counted.

Most calorie apps were built for sandwiches and salads. Syntropy is tuned for how India eats, from a Monday thali to a Sunday biryani.

01Snap the plateGemini Vision names every dish on your thali and estimates each katori, roti and bowl — in about two seconds.
02Confirm in pieces, not gramsAdjust the way you actually eat: 2 roti, half a katori of rice, one bowl of dahi. Values come from a 170-food Indian table.
03Add the second helpingHad two more roti after the photo? Add them to the same meal in two taps, or just type “2 more roti and a katori dahi”.
Target physique

Targets shaped by the
body you are building.

Pick the physique you want and a pace you can keep. Syntropy turns it into calories, protein, carbs, fat and water from your own body (Mifflin-St Jeor), then adjusts every Sunday from your real weight trend and training load.

Lean & definedRecompositionLean muscleMaintain
2,100 kcalTraining day
150 gProtein
3.5 LWater
Target physique and daily targets
Training · Recovery · Fuel

Two halves of one loop.

Heavy leg day yesterday? Your carb target rises today. Lats still fatigued? Your plan knows. Syntropy connects what you lift with what you eat.

Fatigue map
See which muscles are still recovering before you pick a session. Built on OpenGym's recovery model.
Log every set
Rest timer, RPE, progression that tells you the weight before you walk to the bar, and a form guide for the big lifts.
Workout logger with rest timer
Energy homeostasis
Meals, training and basal burn on one dial. No red warnings, just clear numbers.
−272
kcal net balance
Deficit
Surplus
Energy in 2,170Energy out 2,442
Coach intro with the orb
Coach chat with one-tap actions
AI Coach · Gemini

A coach
trained on you.

Ask what to eat for dinner, why you feel tired, or to plan next week. Coach reads a summary of your own logs, never invents numbers, and offers one-tap actions you approve.

Grounded in your dataToday's meals, targets, water, readiness and recent sessions — summarised on the phone, nothing else.
Photos and PDFsShare your trainer's diet plan or a photo of lunch and ask how today compares.
Weekly check-inCode adjusts your targets by at most 150 kcal from your trend; Coach explains why. You accept or keep.
Widgets · Water · Rest timer

Your day,
one glance away.

The things you check fifty times a day live on your home screen, not three taps deep.

Calories left, at a glanceThe Today widget shows kcal left, protein and water.
Water in one tapAdd a 250 ml glass straight from the home screen.
Rest timer that follows youA notification tells you when rest is over, even with the screen off.
Quick add roti, dahi, chaiYour most eaten foods, one tap from the widget.
9:41
Thursday, 24 September
80kcal left
TODAYProtein115 / 150 gWater2.25 / 3.5 LToday · Pull Day
Scan plateThali, tiffin, anything
WATER2.25of 3.5 L+ 250 ml
QUICK ADDPull · resume+ Roti105+ Dahi95+ Chai80+ Dal170
Private by design

Your body data is yours.

Local-firstWorkouts, meals and photos stay on your phone. No account, no server. Export a backup whenever you like.
Fingerprint lockUnlock with your fingerprint, face or screen lock. Nothing to remember, nothing to leak.
You stay in controlYour own free Gemini key lives in Android secure storage. Every AI estimate waits for your confirmation.

Start building order.

Free and open source under the AGPL. Try it in your browser, install the Android app, or build it yourself.

Try the web demoDownload APKStar on GitHub