How it works
Three steps. Zero friction. From plate to tracked in seconds.
Snap or speak
Take a photo of any meal — or just describe it with your voice. Say "I had a chicken burrito with guac and rice" and MacroSnapper handles the rest. No typing, no searching, no food databases.
AI analyzes in seconds
Our advanced vision AI identifies every ingredient, estimates portion sizes, and calculates a precise nutritional breakdown. Not a generic food database lookup — real visual intelligence.
Track and adjust
Your macro bars update instantly. Need to adjust a serving? Slide it up or down and all macros recalculate proportionally. Every entry is editable — your food log, your rules.
Why MacroSnapper
We built the calorie tracker we always wanted — one that uses cutting-edge AI instead of tedious manual entry. Here's what makes it different.
Advanced vision AI — not a food database
Most calorie trackers rely on barcode scanning or manual database lookups with 500,000+ generic entries. MacroSnapper is fundamentally different. We use the most advanced multimodal vision AI available, which visually identifies every ingredient on your plate, estimates portion sizes from visual cues, and calculates a precise macro breakdown. It understands home-cooked meals, restaurant plates, ethnic cuisines, and complex dishes that no barcode database could ever cover.
Voice logging — just talk to it
Don't feel like taking a photo? Just hold the mic button and say what you ate. "Two scrambled eggs, a slice of sourdough with butter, and a glass of orange juice." MacroSnapper's AI parses natural speech, identifies each food item, estimates standard serving sizes, and logs everything in one shot. You can even make corrections by voice — "actually, make that three eggs" — and it recalculates instantly. It's the fastest way to log food, period.
Real-time serving adjustment
The AI's initial estimate is a starting point, not the final answer. Every logged entry has an adjustable serving weight slider. Drag it from 200g to 350g and watch all four macros — calories, protein, carbs, and fat — recalculate proportionally in real-time. This means you're always in control. Had a bigger portion than what the AI estimated? Just bump up the weight. It takes one second.
Live macro bars with dual view
Your dashboard shows animated progress bars for calories, protein, carbs, and fat that fill up as you log meals throughout the day. Toggle between two views: "remaining" (how much you have left to hit your goal) or "consumed" (how much you've eaten so far). Each macro is color-coded — green for calories, blue for protein, yellow for carbs, red for fat — so you can glance at your phone and instantly know where you stand.
Custom goals — manual or auto-calculated
Set your daily calorie and macro targets manually, or let MacroSnapper auto-calculate them based on your body stats, activity level, and fitness goal (lose fat, maintain, or build muscle). The auto-calculator uses the Mifflin-St Jeor equation — the gold standard in sports nutrition — to generate precise targets. Switch between manual and auto anytime. Your goals, your way.
100% private — everything stays on your device
No accounts. No sign-ups. No cloud sync. Your food diary is stored entirely on your iPhone using local storage. The only time data leaves your device is when a photo or voice description is sent for AI analysis — and that happens with your explicit consent. We don't collect analytics, we don't track you, and we don't sell your data. Your nutrition journey is nobody's business but yours.
Built for real life
MacroSnapper works the way you actually eat — not the way food databases wish you did.
Gym & fitness goals
Whether you're bulking, cutting, or recomping — MacroSnapper makes it dead simple to hit your protein targets. Snap your post-workout meal, confirm the serving size, and your macros are logged before you leave the gym. No more guessing if you hit 165g of protein today.
Home-cooked meals
This is where barcode scanners completely fail. You can't scan a homemade stir-fry or your grandma's lasagna. MacroSnapper's AI visually breaks down every ingredient it can see — the chicken, the vegetables, the rice, the sauce — and gives you a real nutritional estimate. It works on any plate.
Eating out
At a restaurant with no calorie info on the menu? Just snap a photo of your plate when it arrives. The AI recognizes common dishes, estimates portion sizes based on plate scale, and gives you a solid macro breakdown. Way better than blindly searching "burger" in a database and hoping for the best.
Weight loss journeys
The #1 reason diets fail is that logging food is tedious. People quit after a week. MacroSnapper removes that friction entirely — a photo takes 2 seconds, voice logging takes 5. When tracking is this easy, you actually stick with it. And consistency is everything.
Hands-free logging
Driving home from the gym? Cooking dinner? Just hold the mic and say what you ate. "A protein shake with two scoops of whey, a banana, and almond milk." The AI parses your description, calculates the macros, and logs it — all without touching the screen. Perfect for when your hands are full.
Macro-conscious athletes
If you're serious about hitting specific macro splits — say 40/30/30 or a strict 2g protein per kg — MacroSnapper's custom goal system and real-time progress bars keep you dialed in. Set your targets manually or let the auto-calculator figure them out based on your stats and goals.
MacroSnapper vs. the rest
Traditional trackers make you search databases and scan barcodes. We let AI do the work.
Frequently asked questions
How accurate is the AI?
The AI uses the most advanced multimodal vision model available to analyze your food. For common meals, accuracy is comparable to a trained nutritionist's estimate. For best results, make sure your plate is well-lit and all items are visible. You can always fine-tune serving sizes after the analysis.
Does it work with home-cooked meals?
Yes — this is one of MacroSnapper's biggest strengths. Unlike barcode-based trackers, our AI visually identifies individual ingredients in any dish, whether it's a casserole, a stir-fry, a salad, or a multi-course home-cooked meal. No recipes or barcode required.
How does voice logging work?
Tap the microphone button and describe what you ate in natural language. For example: "A grilled chicken breast, about 6 ounces, with a cup of brown rice and steamed broccoli." The AI interprets your description, identifies each food item, estimates portions, and logs the full macro breakdown.
Is my data private?
Your food diary is stored entirely on your device — not in the cloud. The only data that leaves your phone is the photo or voice description you send for AI analysis, and that only happens after you give explicit consent. We don't have accounts, we don't track you, and we don't sell data.
Can I adjust the AI's estimates?
Absolutely. Every logged entry includes an adjustable serving weight. Slide it up or down, and all four macros (calories, protein, carbs, fat) recalculate proportionally in real-time. You can also edit any entry manually if you want full control.
What's included in the free version?
You get 3 free AI photo snaps to try it out, plus voice logging, custom macro goals, and full on-device privacy. Upgrading to Pro unlocks unlimited photo snaps, unlimited voice logging, and complete history & progress tracking.
Simple pricing
Unlock unlimited tracking. Cancel anytime.
Monthly
Full access, pay as you go
- Unlimited AI photo snaps
- Unlimited voice logging
- Full history & progress
- Custom macro goals
Annual
Save 17% — best deal
Just $8.33/month
- Unlimited AI photo snaps
- Unlimited voice logging
- Full history & progress
- Custom macro goals