AI Nutrition Coach
Track what you
actually eat.
Inside WhatsApp.
Snap a photo, type a sentence, or record a voice note. Your AI coach logs every calorie, learns your habits, and nudges you when it matters. No app. No login. Just the chat you already use all day.
5 sec
to log a meal
24/7
coach
<$1
per day
0
apps to install
📸 Photo → macros
in 4 seconds
Remembers you 🧠
every convo
Real coaching
not scripts
Sunn
typing…
12:31
just had this for lunch 🍽️
12:31
Grilled chicken salad 🥗
protein
42g
carbs
28g
fat
22g
520 kcal · logged
1,180 / 1,650 kcal today
12:32
Nice pick — you're 40g ahead on protein for the week. Want me to plan something lighter for dinner?
12:32
Try it. No signup
Tap a meal.
Watch Sunn think.
This is exactly what happens in the real app. Choose a meal to send. We'll run it through the live flow right here in the page.
Sunn
online
Ready when you are. What did you just eat?
11:58
How it works
Three taps. No app. Honestly.
No app. No login. No food database.
You text your coach the way you text anyone. Open the chat you already leave open all day and snap, type, or speak. Works in 40+ languages. Nothing new to download or remember.
Sunn
online
two eggs, sourdough toast with butter, and half an avocado
7:48
Eggs, toast & avocado 🍳
kcal
480
P
22g
C
36g
F
28g
Solid breakfast. That's 30% of today's protein already.
7:48
also a flat white ☕
7:49
Logged. Whole milk or oat? (oat = +30 kcal)
7:49
Calories and macros, in 4 seconds.
No barcode scanning. No weighing. AI identifies every ingredient, handles ambiguity, and asks only when it matters ("small or large fries?").
520
Calories
42g
Protein
4s
Time
Sunn
last seen just now
0:08
19:42
Got it — 2 slices pepperoni pizza and a beer.
19:42
calories
740
protein
28g
Totally fine — you banked 300 kcal at lunch. Enjoy 🍕
19:42
Nudges that know your life.
Your coach remembers you skip breakfast Mondays, snack when stressed, and crush protein on leg day. It coaches you. Not a generic avatar.
🧠 What Sunn remembers about you
- Skips breakfast on Mondays
- Prefers chicken over fish
- Snacks when stressed (Wed, Thu)
- Target: lose 12 lb by June
Sunn
online
how am i doing this week?
9:15
You're on target 5/7 days. Protein avg is 108g — up from 82g last week 🔥
9:15
One thing I noticed:
You under-eat on Wednesdays (avg 1,050 kcal). Want me to send lunch ideas the night before?
9:15
yes pls 🙏
9:16
Done. I'll nudge you Tuesday night.
9:16
Features
Built for the messy middle —
not the honeymoon phase.
A coach that actually knows you.
Every other diet app starts from zero every session. Sunn remembers preferences, patterns, and goals. The more you chat, the sharper it gets.
What Sunn remembers about Priya
- Hatesfish, mushrooms
- Skips breakfastMondays
- Stress-snacksWed + Thu
- Targetlose 12 lb by June
- Protein focusleg day
Snap. Send. Done.
Restaurant plate, home-cooked, takeout. Point and shoot. We handle portion size, mixed dishes, and hidden oil.
"I had pizza and a beer."
Hands full? Driving? Talk, don't type.
$6.67 / month
Billed annually. 7-day free trial. Cancel with one tap.
Your coach answers at 3am.
Every day. Replies in under 3 seconds.
Your data stays yours.
End-to-end encrypted. GDPR & HIPAA-grade. Delete everything in one tap.
Sunn vs. the diet-app graveyard
Tired of apps that don't stick?
We built Sunn after trying — and abandoning — every diet app on the market. Here's why this one's different.
Real people, real plates
24,000 of them. And counting.
“I tried MyFitnessPal for seven years. Seven years. Sunn is the first thing that just… stayed in my life. Because it lives where my life already is.”
Maya R.
Lost 18 lb in 4 months
“Voice notes are a cheat code. I record on the walk back from the gym. By the time I'm showered, macros are logged and my coach has already planned dinner.”
Deven K.
Gained 9 lb lean mass
“The memory thing is unreal. It knows I hate fish, skip breakfast Mondays, and snack when stressed. It coaches around me — not at me.”
Priya S.
Down 3 pant sizes
“My dietician costs $180/hour and forgets what we talked about last week. This costs $6 a month and remembers everything. Not close.”
Tom W.
First 5k in years
“The Sunday recap is the feature. One message and I know exactly what to fix this week. No shame, no "just try harder." Actual data.”
Aisha L.
Hit protein target 94 days straight
“My doctor recommended it. I was skeptical — a WhatsApp chatbot? — but my labs just came back normal for the first time in 6 years.”
Jorge M.
Off blood pressure meds
Pricing
Less than a Starbucks run — per month.
Starter
Try the magic
- Photo & text logging
- Daily macro tracking
- Basic coaching nudges
- 1 meal per day
Sunn
The real deal
- Everything in Starter
- Unlimited meals & voice notes
- Full memory & coaching
- Weekly deep-dive review
- Personalized meal suggestions
- Priority support
Coach+
For serious goals
- Everything in Sunn
- Monthly 1:1 w/ a dietician
- Custom macro & training plans
- Bloodwork integration
- Dedicated account lead
7-day free trial · Cancel in one message · 30-day refund
Questions
Stuff people ask all the time.
Will my friends see Sunn messages in my WhatsApp?
No. Sunn is a private one-on-one chat with our verified Business account. It shows up in your chat list only, the same way a chat with any one friend would. It never posts to groups, never appears in a friend's chat history, and we don't touch any of your other conversations.
What happens when my 7 days are up?
Your plan starts automatically at the price you picked ($6.67/mo annual or $12/mo monthly). You can cancel any time before the trial ends by sending "cancel" in the chat. No forms, no phone call, no fine print.
What if I don't lose weight?
Message us within 30 days of your first payment and we'll refund you in full, no questions asked. If Sunn isn't the first tracker that actually stuck for you, we haven't earned the money.
Does it connect to Apple Health, Fitbit, or Oura?
Apple Health sync is in beta for iOS (join the waitlist in-chat). Fitbit and Oura are on the near roadmap. Today, you can tell Sunn your steps or training load in chat and it'll factor them into your daily target, same result, zero setup.
Wait, it's really just WhatsApp?
Yes. No app to download, no new password, no new icon on your home screen. If you can text a friend, you can use Sunn. We also have a web chat if you prefer desktop.
How accurate is photo tracking?
Accurate to within 10 to 15% for most foods. On par with a careful manual entry and much faster. When something's ambiguous ("small or large fries?"), Sunn asks. You can always tap "edit" and correct it in one line.
Will it judge me?
No. Sunn is trained to be direct and kind, never preachy. Logged a pint of ice cream? "Noted. Want a protein-heavy breakfast tomorrow?" That's it.
How is this different from MyFitnessPal or Noom?
MyFitnessPal is a food database. Noom is a CBT course. Sunn is a coach that lives in your pocket, learns your patterns, and replies in seconds. No database to search. No modules to finish.
Is my data private?
Yes. Everything is end-to-end encrypted. We don't sell or share data. You can export or delete everything with a single tap. GDPR and HIPAA-grade infrastructure.
Can I cancel anytime?
Yes, with one tap in-chat. No forms, no "talk to an agent," no fine print. 7-day free trial, no card required to start.
Your coach is
ready when you are.
Two-minute setup. Personalized plan. 7-day free trial. Everything from inside WhatsApp.
7 days free · No card · Cancel anytime