Track your calories
with just a photo
Snap a picture of your meal. Calsy's AI calculates calories, protein, carbs, fat — and tells you if what you're eating is actually good for you.
Calsy 新增功能
21 天重置
這不僅是另一個連續天數計數器——而是一個內建的 21 天計畫。四個階段、六條規則、一個終點線。而且每條規則都會根據您的記錄自動勾選，因此無需仰賴自律。
終點線
距離9還有X天
掃描 2 頓飯
第 2 頁，共 2 頁
多喝水
2,000 毫升（共 2,000 毫升）
10,000 步驟
10,418 / 10,000
B級或更高級別的餐食
今日最低：A
控制在預算範圍內
1,640 / 1,900 千卡
45 分鐘鍛煉
45 / 45 分鐘
隨着您登錄，規則會自動勾選。
觀看
第 1–3 天掃描兩餐、喝水、走 5,000 步。目前沒有任何限制——只需記錄你實際吃下的食物即可。
清理一下
第 4–9 天餐點評分、您的熱量預算以及 30 分鐘的活動量都將加入其中。
擰緊它
第 10–14 天B 級或以上、10,000 步、45 分鐘的運動。
證明一下
第 15–21 天全部六項規則，持續運動整整一小時，一路堅持到第 21 天。
接著逐步晉級：完成「基線」層級以解鎖「嚴格」層級，再解鎖「完整」層級。
免費下載 · 第一天就從現在開始
自動勾選的規則
無需手動勾選。每項規則皆會根據您的餐點掃描、飲水紀錄及步數自動驗證——您無需自行勾選。
硬性規定
若連續一天未使用，重置功能將暫停。次日完成任務即可恢復。連續兩天未使用將終止當前進度——這正是「第 21 天」之所以重要的原因。
進行中的檢查要點
第 1、8、15 和 21 天的體重測量可追蹤趨勢，而第 1 天的可選照片將在第 21 天與其另一半配對。
How it works
Calorie tracking that takes seconds, not minutes
Snap a photo
Take a picture of your meal — breakfast, lunch, dinner, snack, anything. That's literally all you need to do.
AI does the work
Calsy's AI recognizes every food on your plate and calculates exact calories, protein, carbs, and fat. Instantly.
Reach your goals
Track your daily intake, build streaks, and watch your progress. Calsy makes hitting your goals effortless.
Why choose Calsy?
The smartest way to track what you eat
Stop wasting time on manual entry
Point your camera at any meal or scan a barcode. Calsy's AI plus a 300,000+ product database means every calorie and macro is tracked — instantly.
Know your macros without the math
Protein, carbs, fat — all calculated automatically with every meal. See exactly where you stand at a glance.
Stay hydrated effortlessly
One-tap water logging with daily intake tracking. Hit your hydration goals without thinking about it.
Build habits that actually stick
Daily streaks and goals keep you accountable. Most users say Calsy is the first tracker they've stuck with for more than a week.
Scan any packaged food
Barcode scanner gives you instant nutrition info for any packaged food. No manual entry needed.
Know if your food is actually healthy
Every meal gets a Health Score from A to E. Calsy analyzes food quality — not just calories — so you know if your diet is helping or hurting your goals.
Health Score
Not all calories are created equal
Two meals can have the exact same calories — but completely different effects on your body. Calsy is the only tracker that understands this.
Grilled salmon & vegetables
520 kcal
Fast food burger & fries
530 kcal
Almost the same calories. Completely different impact.
AI-powered food quality analysis
Every meal gets a score from 0-100 and a grade from A to E. Not based on calories — based on real nutritional value.
Flags 100+ harmful additives
Calsy detects concerning food additives like nitrites, artificial colors, and preservatives that other trackers completely ignore.
Understands food context
30g of protein from salmon is not the same as 30g from a hot dog. Calsy's AI knows the difference — and scores accordingly.
Processing level detection
See how processed your food really is. Calsy classifies every meal from minimally processed to ultra-processed.
Why people switch to Calsy
Other trackers count calories. Calsy understands your nutrition.
Other trackers
Calsy
People who switched to Calsy don't go back
“Calsy completely changed how I track my food. The AI is shockingly accurate — I just snap a photo and it knows exactly what I'm eating.”
Sarah M.
Fitness enthusiast
“I've tried every calorie counter out there. Calsy is the first one that actually sticks because it's so effortless. The photo AI is like magic.”
James R.
Marathon runner
“As a nutritionist, I recommend Calsy to all my clients. The accuracy of the AI food recognition is impressive and the interface is beautiful.”
Emily K.
Certified Nutritionist
“Finally an app that makes calorie tracking actually enjoyable. The streaks keep me motivated and the weekly insights are so helpful.”
David L.
Lost 12kg in 4 months
“The barcode scanner combined with the AI photo feature means I can track literally everything I eat in seconds. Game changer.”
Maria G.
Busy mom of 3
“I tried MyFitnessPal, Lose It, Yazio — nothing stuck. Calsy stuck because snapping a photo takes zero effort. I've been using it daily for months.”
Alex T.
Software engineer
“Calsy completely changed how I track my food. The AI is shockingly accurate — I just snap a photo and it knows exactly what I'm eating.”
Sarah M.
Fitness enthusiast
“I've tried every calorie counter out there. Calsy is the first one that actually sticks because it's so effortless. The photo AI is like magic.”
James R.
Marathon runner
“As a nutritionist, I recommend Calsy to all my clients. The accuracy of the AI food recognition is impressive and the interface is beautiful.”
Emily K.
Certified Nutritionist
“Finally an app that makes calorie tracking actually enjoyable. The streaks keep me motivated and the weekly insights are so helpful.”
David L.
Lost 12kg in 4 months
“The barcode scanner combined with the AI photo feature means I can track literally everything I eat in seconds. Game changer.”
Maria G.
Busy mom of 3
“I tried MyFitnessPal, Lose It, Yazio — nothing stuck. Calsy stuck because snapping a photo takes zero effort. I've been using it daily for months.”
Alex T.
Software engineer
“Calsy completely changed how I track my food. The AI is shockingly accurate — I just snap a photo and it knows exactly what I'm eating.”
Sarah M.
Fitness enthusiast
“I've tried every calorie counter out there. Calsy is the first one that actually sticks because it's so effortless. The photo AI is like magic.”
James R.
Marathon runner
“As a nutritionist, I recommend Calsy to all my clients. The accuracy of the AI food recognition is impressive and the interface is beautiful.”
Emily K.
Certified Nutritionist
“Finally an app that makes calorie tracking actually enjoyable. The streaks keep me motivated and the weekly insights are so helpful.”
David L.
Lost 12kg in 4 months
“The barcode scanner combined with the AI photo feature means I can track literally everything I eat in seconds. Game changer.”
Maria G.
Busy mom of 3
“I tried MyFitnessPal, Lose It, Yazio — nothing stuck. Calsy stuck because snapping a photo takes zero effort. I've been using it daily for months.”
Alex T.
Software engineer
“Calsy completely changed how I track my food. The AI is shockingly accurate — I just snap a photo and it knows exactly what I'm eating.”
Sarah M.
Fitness enthusiast
“I've tried every calorie counter out there. Calsy is the first one that actually sticks because it's so effortless. The photo AI is like magic.”
James R.
Marathon runner
“As a nutritionist, I recommend Calsy to all my clients. The accuracy of the AI food recognition is impressive and the interface is beautiful.”
Emily K.
Certified Nutritionist
“Finally an app that makes calorie tracking actually enjoyable. The streaks keep me motivated and the weekly insights are so helpful.”
David L.
Lost 12kg in 4 months
“The barcode scanner combined with the AI photo feature means I can track literally everything I eat in seconds. Game changer.”
Maria G.
Busy mom of 3
“I tried MyFitnessPal, Lose It, Yazio — nothing stuck. Calsy stuck because snapping a photo takes zero effort. I've been using it daily for months.”
Alex T.
Software engineer
FAQ
Frequently asked questions
Just snap a picture of your plate. Calsy's AI identifies every food item, estimates portions, and calculates calories, protein, carbs, and fat — in under 3 seconds. No typing, no searching, no manual entry.
Reset 21 是 Calsy 內建的 21 天計畫。 該計畫分為四個階段——「觀看」（第 1–3 天）、「清理一下」（第 4–9 天）、「擰緊它」（第 10–14 天）、「證明一下」（第 15–21 天）——每天最多有六項規則，例如掃描兩餐、達到飲水量和步數目標、確保餐點品質評級達標，以及維持在熱量預算內。 系統會根據您的記錄自動核對規則完成狀況，體重檢測點設於第 1、8、15 和 21 天，若出現一天未記錄，計畫將暫停；若連續兩天未記錄，則計畫結束。
Calories only tell half the story. Two meals can have 500 kcal but completely different effects on your body. The Health Score (0-100, grades A through E) analyzes food quality — protein source, fiber, sugar, additives, processing level — so you know if your meal is actually helping or hurting your goals.
Yes. Calsy automatically flags over 100 concerning additives like E250 (nitrites in bacon and hot dogs), E171 (titanium dioxide, banned in the EU since 2022), and E951 (aspartame in diet drinks). Each one is classified by risk level — so you see what's in your food before you eat it.
Other trackers make you search databases and type everything manually — that's why most people quit within a week. Calsy is photo-first: snap a picture, done. Plus it goes beyond calories with Health Score, additive detection, and food processing analysis. It's the tracker people actually stick with.
Calsy's AI recognizes thousands of foods and dishes worldwide — home-cooked meals, restaurant dishes, multi-ingredient plates, even street food. Plus, the barcode scanner gives you instant access to a database of over 300,000 verified products with exact nutritional data.
Calsy works in over 35 languages including English, Spanish, French, German, Japanese, Korean, Chinese, Portuguese, Italian, Polish, and many more. AI food recognition works across all supported languages.