🍋 Life after added sugar

Quit added
sugar without
going sour.

Scan any product, see the hidden sugar in teaspoons, and build a streak that survives the slip-ups. Sour makes cutting sugar feel less like a diet and more like a win.

Coming soon

Download on theApp Store

Get it onGoogle Play

Sour home screen showing 30 days unsweetened and this week's progress

What's inside

Everything you need to
break up with sugar.

Scan & see the truth

Point your camera at any label. Sour translates the grams into teaspoons and flags every hidden sugar — maltodextrin, juice concentrate, the works.

Streaks that forgive

One slip doesn't burn it all down. Sour keeps your momentum through the bad days — because quitting sugar is a long game, not a clean record.

Beat the craving

Hit a wall at 3pm? Log the craving, name the trigger, and ride it out. Most urges fade in 10 minutes — Sour counts every one you beat.

How it works

Real screens. Real habits.

The scanner

No more reading labels in the aisle.

That "healthy" oat milk? Four teaspoons of added sugar a glass. Sour gives you a one-glance verdict so you can decide in two seconds, not two minutes.

Grams converted to teaspoons you can picture
Every hidden sugar named and totalled
A plain-English verdict, no judgement

Sour scan result for Oatly Original showing 1¾ teaspoons of added sugar and two hidden sugars found

The craving log

Cravings aren't failures. They're data.

When the urge hits, name what's behind it — stress, boredom, late nights. Sour helps you see your patterns and reminds you that the feeling always passes.

Tag the trigger in one tap
A gentle "it'll pass" pause — most soften in 10 minutes
Watch your beaten-craving count climb

Sour craving log asking what the craving felt like, with an intensity scale and trigger tags

Your daily fuel

Calories, without the obsession.

Sour counts calories too — but as a gentle guide, not a cage. See the energy that keeps you steady, built from your body and your day. A number to aim around, never a rule to obey.

A maintenance target you can eat around
A balanced split — protein, carbs, fat — at a glance
Want to trim? A kind nudge down, not a crash

Sour daily fuel screen showing a 2,360 kcal maintenance target and a balanced macro split

Good questions

The honest FAQ.

Is Sour just another calorie counter?

Not just another one, no. Sour does track calories — but as a gentle guide, not a cage, and you’ll never get shamed for going over. Added sugar is still the star: we show you where it hides, in teaspoons you can picture. Calories are there when you want the fuller picture, without the obsession.

What happens when I slip up?

Nothing dramatic. A single sugary day won’t reset your streak to zero — Sour is designed to keep you going, not punish you. Two in a row is a nudge to check in, not a failure.

Does the scanner work on everything?

It reads barcodes and nutrition labels for the vast majority of packaged products. For anything it doesn’t recognise, you can snap the label and Sour will pull the numbers from the panel.

Is Sour free?

You start with a 3-day free trial — the whole app, nothing held back. After that, Sour is a single subscription: pick monthly or annual (annual works out cheaper). Cancel any time before the trial ends and you won’t be charged a cent.

Will it work for my diet?

Keto, low-carb, plant-based, or just sugar-curious — Sour focuses on added sugar, so it sits alongside whatever you already eat. No meal plans, no rules to follow.

Sweet enough
already.

Cut added sugar the kind way. Try Sour free for 3 days — then monthly or annual.