Built for the food you actually eat.

From burgers to nasi lemak, pasta to pho. Snap your plate, answer one quick question about the oil, sauce or sugar a photo can't show, and watch every meal turn into progress.

Join the beta See how it works

Nasi lemak

530kcal

Protein14 g

Carbs64 g

Fat25 g

How rich was the santan?

LightNormalRich

Most calorie apps guess from a photo and miss what you can't see: the oil in the pan, the cream in the sauce, the sugar in your coffee. Step outside burgers and salads and it gets worse.

In a University of Sydney study, AI food apps undercounted the calories in pearl milk tea by up to 76% and overcounted beef pho by 49%. A few hundred missing calories a day is the difference between losing weight and wondering why you aren't.

Chen et al., University of Sydney, 2024, via Nutrition Insight

Same teh tarik. Three different drinks.

A photo can't taste your tea. Foursight asks once, in one tap. Try it.

How sweet was it? Kurang manis Normal Extra manis

115kcal

About 2 teaspoons of added sugar

150kcal

About 4 teaspoons of added sugar

175kcal

About 6 teaspoons of added sugar

Foursight's estimates for one 250 ml glass.

Four taps from plate to progress.

No weighing, no searching through ten versions of "chicken rice".

Snap your plate.

Point and tap. Foursight finds every part of the meal, from the rice to the sambal, and estimates how much is there.
Answer one quick question.

How rich was the santan? How sweet was the drink? One tap covers what a photo can't see, and you can fix any item in a second.
See how good it was.

Calories, protein, fibre and sugar, plus a score from 1 to 10 that tells you whether it's a meal worth repeating.
Watch your progress.

Your weight, sleep and energy side by side, with the one habit to fix next. Small changes you can see week to week.

See it move. Up or down.

Losing fat or building muscle, your weigh-ins draw a line to your goal and tell you when you'll get there.

Losing weight Gaining weight

−6.6 kgin 12 weeks

On pace for 74 kg in about 3 weeks

+3.9 kgin 12 weeks

On pace for 63 kg in about 3 weeks

Example data. In the app, the chart uses your own weigh-ins, from Foursight or Apple Health.

Food is one of four.

Sleep, stress, diet and exercise feed each other. Foursight scores all four every day and shows you the one to fix first.

Sleep

From Apple Health, every night.

Stress

A two-second check-in.

Diet

Snap, answer, done.

Exercise

Steps and workouts, synced.

Why I built Foursight

Looking healthy isn't the same as being healthy.

I train, I eat decently, and people tell me I look fit. Then one random day, a nurse offering free checks at a mall ran a few quick tests. My blood pressure came back high, and from my results she told me I might have up to 70% blockage in my heart's arteries.

That one moment made me look at my whole routine: my sleep, my stress, what I eat, not just the gym. I changed a lot, and I started keeping an eye on my heart health. Foursight is the app I wish I'd had that day.

CurtisFounder

Healthy arteryBlood flows freely.

Early buildupNarrowing, but still reversible.

About 70% blockedOnly a small gap for blood to get through.

A quick mall test can't actually see inside your arteries, and a blockage like that is very unlikely at my age. But it was definitely a wake-up call.

Simple illustrations, not medical images.

Even the dishes other apps get wrong.

Everyday food from everywhere, plus 108 Asian dishes and drinks most trackers barely know, from hawker stalls to kopitiams. More every month.

Ais kacang444 kcal Asam laksa324 kcal Ayam goreng berempah312 kcal Bak kut teh445 kcal Beef rendang276 kcal Cendol492 kcal Char kway teow749 kcal Chicken curry298 kcal Chicken satay440 kcal Curry laksa552 kcal Curry puff179 kcal Hainanese chicken rice604 kcal Kopi138 kcal Kopi-O75 kcal Mee goreng mamak630 kcal Mee rebus600 kcal Milo ais231 kcal Nasi briyani728 kcal Nasi goreng578 kcal Nasi lemak532 kcal Roti canai320 kcal Roti telur402 kcal Sirap bandung245 kcal Teh tarik150 kcal Teh-O90 kcal Thosai168 kcal Wantan mee480 kcal Pad thai with chicken154 kcal / 100 g Pad thai with meat160 kcal / 100 g Pad thai with prawns147 kcal / 100 g Vegetarian pad thai165 kcal / 100 g Fresh spring roll112 kcal / 100 g Glutinous rice cake with beans185 kcal / 100 g Pho77 kcal / 100 g Vegetarian pho37 kcal / 100 g Adobo with rice181 kcal / 100 g Almond chicken195 kcal / 100 g Beef and broccoli160 kcal / 100 g Beef and vegetable stir-fry147 kcal / 100 g Beef fried rice178 kcal / 100 g Beef in soy-based sauce187 kcal / 100 g Beef lo mein129 kcal / 100 g Bubble tea55 kcal / 100 ml Chicken and vegetable stir-fry95 kcal / 100 g Chicken chop suey83 kcal / 100 g Chicken fried rice173 kcal / 100 g Chicken lo mein130 kcal / 100 g Chicken with mushrooms, stir-fried69 kcal / 100 g Chow mein131 kcal / 100 g Crab rangoon314 kcal / 100 g Egg drop soup27 kcal / 100 g Fried dumplings192 kcal / 100 g Fried rice174 kcal / 100 g Fried spring roll (chicken)266 kcal / 100 g Ais kacang444 kcal Asam laksa324 kcal Ayam goreng berempah312 kcal Bak kut teh445 kcal Beef rendang276 kcal Cendol492 kcal Char kway teow749 kcal Chicken curry298 kcal Chicken satay440 kcal Curry laksa552 kcal Curry puff179 kcal Hainanese chicken rice604 kcal Kopi138 kcal Kopi-O75 kcal Mee goreng mamak630 kcal Mee rebus600 kcal Milo ais231 kcal Nasi briyani728 kcal Nasi goreng578 kcal Nasi lemak532 kcal Roti canai320 kcal Roti telur402 kcal Sirap bandung245 kcal Teh tarik150 kcal Teh-O90 kcal Thosai168 kcal Wantan mee480 kcal Pad thai with chicken154 kcal / 100 g Pad thai with meat160 kcal / 100 g Pad thai with prawns147 kcal / 100 g Vegetarian pad thai165 kcal / 100 g Fresh spring roll112 kcal / 100 g Glutinous rice cake with beans185 kcal / 100 g Pho77 kcal / 100 g Vegetarian pho37 kcal / 100 g Adobo with rice181 kcal / 100 g Almond chicken195 kcal / 100 g Beef and broccoli160 kcal / 100 g Beef and vegetable stir-fry147 kcal / 100 g Beef fried rice178 kcal / 100 g Beef in soy-based sauce187 kcal / 100 g Beef lo mein129 kcal / 100 g Bubble tea55 kcal / 100 ml Chicken and vegetable stir-fry95 kcal / 100 g Chicken chop suey83 kcal / 100 g Chicken fried rice173 kcal / 100 g Chicken lo mein130 kcal / 100 g Chicken with mushrooms, stir-fried69 kcal / 100 g Chow mein131 kcal / 100 g Crab rangoon314 kcal / 100 g Egg drop soup27 kcal / 100 g Fried dumplings192 kcal / 100 g Fried rice174 kcal / 100 g Fried spring roll (chicken)266 kcal / 100 g

Open the calorie guide

Free means free.

Free plan

No card needed, no time limit

3 photo scans a day
Unlimited barcode and manual logging
Water, sleep and Apple Health
Meal scores and your weight chart
At most one clearly labelled sponsored card per screen

Pro

US$59.99 a year with a 7-day free trial, or US$9.99 a month. Local prices in the App Store.

Unlimited photo scans
Weekly insights and experiments
A health summary to share with your doctor
No sponsored cards

A reminder before you pay

If you start a free trial, we remind you the day before it ends.

Cancel in a few taps

Manage or cancel your plan from inside the app, any time.

A real person replies

Email us and hear back from the founder, usually within 24 hours.

Questions, answered.

Is Foursight free?

Yes. The free plan includes 3 photo scans a day, unlimited barcode and manual logging, water, sleep, Apple Health, meal scores and your weight chart, with no time limit. Pro adds unlimited photo scans, weekly insights and experiments, and a health report you can show your doctor.

Does it work with the food in my country?

Yes. Foursight logs everyday food from anywhere, scans packaged food by barcode, and lets you type or photograph any meal. It goes deeper than most apps on Asian food, with local dishes like nasi lemak, roti canai and teh tarik, and it asks about the things a photo can't show: oil, sauce, santan and sugar.

How accurate are the calories?

Every number is an estimate, and Foursight shows it that way. The AI only identifies what's on the plate and how much; the calories come from the food database, adjusted by your answers. You can change any item or amount in one tap.

Do I need an Apple Watch?

No. Foursight works on its own. If you use Apple Health, it reads your steps, sleep, workouts and weight automatically, from an Apple Watch or just your iPhone.

Is it on Android?

Not yet. Foursight is on iPhone first. Join the waitlist and pick Android, and we'll tell you when it's ready.

What happens to my photos and data?

Your data is used to run the app for you, never sold, and you can export or delete all of it from the app. Meal photos are sent to our AI provider only to read the meal, after you agree to it.

Is Foursight medical advice?

No. Foursight is a general wellness app that helps you build healthier habits. It doesn't diagnose or treat anything. Talk to a doctor about medical concerns.

How do I cancel Pro?

Any time: in the app, go to You, then Data & account, then Subscription, or use your iPhone's Settings under your name, then Subscriptions. Deleting the app doesn't cancel a subscription, so cancel there first.

Be one of the first to try it.

Join the beta and we'll email you an invite. You'll need an iPhone and the Apple ID you use for the App Store.