For iPhone · Local-first nutrition tracker

Calories, macros and micro­nutrients

Logged in seconds, with a plan built around you. For people building muscle or losing fat.

Takes about a minute · no account needed

What's inside

Everything on the label. Nothing you don't need.

From your first plan to a scanned barcode to a Lock Screen glance, MacroLog keeps the whole day in one place, and it works fully offline.

01

A plan from your numbers

Onboarding estimates your maintenance with Mifflin-St Jeor × activity level, then sets a cut, maintain or lean-bulk target with goal-aware protein.

02

The daily log

A calorie ring and protein, carb and fat bars up top. Meals grouped into breakfast, lunch, dinner and snacks, plus a glass-of-water tracker.

03

Search & barcode scanning

Search Open Food Facts or point the camera at an EAN/UPC barcode. Favorites, recipes and manual entry cover the rest.

04

Meal photo estimates

Photograph a meal and review the estimate before it's logged. It runs on-device with Apple Intelligence or a downloaded vision model; signed-in accounts can estimate in the cloud, and photos are never stored.

05

Weight & trend

Daily weigh-ins with a trend chart, so you can see whether the bulk or the cut is actually working.

06

Apple Health, read-only

Opt in per type to import weight, steps and active calories, and optionally add today's activity to your calorie goal. MacroLog never writes Health data.

07

Streaks & calendar

A flame kept alive by logging each day, with two automatic streak freezes per run, and a month calendar to review history and jump to past dates.

08

Widget & Live Activity

A “Today's meals” home-screen widget shows calories per meal with progress rings and quick add, mirrored on the Lock Screen and in the Dynamic Island.

09

Sync when you want it

Sign in with a magic link, Google, Apple or as a guest to sync across devices. Guest accounts upgrade in place without losing data.

Beyond the big three

Micronutrients, measured against you.

MacroLog tracks twelve micronutrients against sex-specific reference intakes, not one generic number for everyone.

FiberSugarSaturated fatSodium PotassiumCalciumMagnesiumIron ZincVitamin CVitamin DCholesterol

MacroLog Facts

Tracked per dayper meal
Caloriesring vs. your target
Proteingoal-aware target
Carbohydratebar vs. target
Fatbar vs. target
Micronutrients12
Streak freezes per run2
Accounts required0
Works offlineYes

Food data by Open Food Facts. Micronutrient targets use sex-specific reference intakes.

Your plan

One question per screen. A plan that shows its work.

Setup asks only what it needs, then shows the real calculation with your numbers: resting burn, maintenance, deficit or surplus, and protein. Calories and protein can be adjusted anytime.

  1. GoalLose weight, maintain weight or build muscle.
  2. About youSex and birth year, optionally prefilled from Apple Health.
  3. Height & weightYour starting point. An estimate is fine.
  4. ActivityEveryday movement, not just workouts.
  5. Target & paceOptional. Each pace shows its daily calories.
  6. Your planDaily target, macros with reasons and a weight projection.
BMR (Mifflin-St Jeor)×activity level=maintenance±cut / lean-bulk adjustment→your daily target

Local-first

Your log lives on your phone.

An on-device SQLite database is the source of truth. The app works fully offline and without an account; signing in only adds cross-device sync.

0

Accounts required

Start logging right away. Sign-in is offered later, once there's a log worth backing up.

∞

Works offline

Logging, history and targets all run from the local database on your device.

↻

Optional sync

When signed in, changes push and pull across devices, and deletions propagate.

R/O

Health stays yours

Apple Health access is read-only and opt-in per data type.

Log in seconds. See the whole day.

MacroLog is coming to the App Store for iPhone.