Calorie Tracking

Calorie counting, without the typing.

Snap a photo and get calories, carbs, protein, fat, and fibre in seconds. No database to search, no portions to slide. Built for the people who tried calorie counting before and gave up by week three.

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SNAQ app on iPhone showing a meal's calories and full nutrition breakdown

WHAT IS A CALORIE COUNTING APP

What is a photo-based calorie counting app?

A calorie counting app records the energy content of meals, usually to support weight management or general nutrition awareness. SNAQ is a calorie counting app that logs a meal from a single photo, returning calories along with carbs, protein, fat, and fibre in seconds. It also supports voice, barcode, nutrition-label, and saved-meal logging, lets you set daily targets for any nutrient, and can pair with a CGM such as Dexcom or FreeStyle Libre to show how each meal relates to your glucose. Its meal recognition has been evaluated in peer-reviewed studies and a randomised controlled trial.

The problem

Most people quit calorie counting within weeks.

The counting is rarely the problem. The data entry is. Search the database, pick the brand, guess the portion, then do it again for the next item and the next meal. Across health and fitness apps, only about 3% of people are still active a month in. SNAQ keeps the calories flowing because the input is a photo, and for anyone watching glucose or on a GLP-1, it tracks the context generic counters leave out.

Photo → calories

Calories and macros from a photo, not a database search.

Point your camera at a plate and SNAQ estimates calories, carbs, protein, fat, and fibre in seconds. Set daily targets for the nutrients you care about, or skip targets and just track. Every estimate is editable, so the final number is one you agree with.

Calories + full macros Targets for any nutrient Optional glucose context

Log your weight by hand or sync it from Apple Health or Health Connect, and the trend lines up with what you actually ate.

See how it works →

SNAQ app showing photo-based meal logging with calories and macros

Why it works

The numbers you need, without the pressure.

−38%

Fewer carb estimation errors than self-counting

In a 2024 head-to-head study of 53 adults with T1D, SNAQ cut carb estimation errors by 38% versus manual estimates. Calories and macros use the same volumetric AI.

JDST, 2024

Targets

Daily targets, if you want them

Set a calorie target, or targets for carbs, protein, and energy, and watch meals add up through the day. Or log without any goal attached.

Your numbers, your call

Protein

Built for smaller GLP-1 portions

When appetite drops on a GLP-1, protein is the first thing to fall. SNAQ surfaces protein at every meal so smaller plates still cover what your body needs.

For Ozempic, Wegovy, Mounjaro

Common scenarios

Where photo calorie counting earns its keep

Logging restaurant meals and homemade plates that have no nutrition label to scan
Keeping protein up while overall calories fall on a GLP-1 medication
Tracking calories and macros without weighing every ingredient
Setting a daily calorie or protein target and watching meals add up against it
Watching a weight trend alongside intake, synced from Apple Health or Health Connect
Seeing how a meal relates to glucose when a CGM is connected

Clinical Evidence

+6.6%

Time in Range (the proportion of time glucose stays within a healthy target range) · eClinicalMedicine · 2025

One of the few nutrition apps with peer-reviewed accuracy research behind its numbers.

Validated in a randomised controlled trial with T1D patients on automated insulin delivery. Participants spent more time in their blood sugar target range.

Source: eClinicalMedicine (The Lancet), 2025 · 53 T1D participants.

Read the full research →

Common questions.

How accurate is photo-based calorie counting?

SNAQ estimates calories along with carbs, protein, fat, and fibre from a meal photo using AI portion analysis and a large food database. Its carb estimation has been validated in peer-reviewed research, with a mean absolute error of 5.5 g across 48 meals (JMIR mHealth, 2020), and calories and macros use the same volumetric approach. Every estimate is yours to review and adjust before you save it, so you stay in control of the final number.

Can I set a daily calorie or macro target?

Yes. You can set daily targets for calories and for individual nutrients like carbs, protein, fat, and energy. As you log, each meal counts toward the target so you can see where the day stands. Targets are optional; plenty of people just log meals and review the totals without a goal attached.

Is SNAQ a good calorie counter if I'm on a GLP-1?

It can be. On a GLP-1, appetite and portions drop, which makes protein easy to under-eat. SNAQ shows protein at every meal alongside calories, so you can keep intake up even as overall eating falls. You can also log your weight by hand or sync it from Apple Health or Health Connect to watch the trend alongside what you eat.

Do I need a CGM to count calories with SNAQ?

No. Calorie and macro tracking work camera-only, with no device required. If you do connect a CGM such as Dexcom or FreeStyle Libre, SNAQ overlays each meal on your glucose curve, context that calorie-only apps miss.

Is SNAQ free?

SNAQ is free to download and includes a 7-day free trial of Premium on the App Store and Play Store. Web purchases include a 30-day money-back guarantee, and Premium starts from $2.66/month on the annual plan.

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