Five things, in the order you live them. None of them takes long, and the last one is what the others are for.
Log what you eat
Search a food or scan its barcode, pick a portion or type what the scale says, and it is in your day. Everything you log waits at the top of the list next time, opening on the portion you had, so a normal breakfast takes a few seconds.
Portions the way the pack describes them, or grams from your kitchen scale.
Foods from public databases: the products on Romanian and Swedish shelves, plus national food tables from around the world.
Your own recipes, weighed once, logged by the plate for ever after.
Watch the day fill up
The day opens on rings: calories eaten against your target, then protein and fat, and carbs if you want them. Each meal is a card, and each entry a line you tap to change how much of it there was.
The same thing logged twice counts up instead of filling the list. Four cappuccinos are one line reading 4 × 250 ml, and tapping it takes you back to the portion and the count to change your mind.
Weigh in when you like
A single reading is mostly water, so the app never reacts to one. It smooths your weigh-ins into a trend and reads that instead. Skip a week and nothing breaks; the trend simply picks up where you left it.
Check in once a week
Once a week you are shown what happened: what you ate on average, what your trend weight did, and what that says about the energy you actually burn. From that comes a new target, moved a little from the old one, never a lurch, and never below a safe floor.
A calculator gives a population average and hopes. This gives your number, and gets it wrong by less every week.
A target that fits
You choose whether to lose, hold or gain, and how fast, as a percentage of your weight a week. The app shows the date that pace lands you on, warns when it is faster than most people should go, and splits the target into protein, fat and carbs you can adjust or leave alone.