Lekki: weight loss in 6 weeks

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About this app

Weight loss in 6 weeks, with no diet and no calorie counting.

Lekki is a 42-day programme that helps you lose weight by changing a few habits, one day at a time. Nothing to weigh, no calories to log, no forbidden food. This isn't a diet, it's a handful of small changes that add up.

A DAY WITH LEKKI
A large glass of water when you wake up. Coffee or tea, unsweetened. A little activity before eating. A waiting time before your first meal. Three well-spaced meals. And cold exposure if you want it, in the shower or just on your legs.

Every morning the app shows you today, and nothing else. You tick off what you do and skip what you don't.

WHAT YOU GET
• A programme that fits you: 3 levels (easy, medium, hard), and you choose what to keep, the cold, the caffeine, the strength work
• 4 quick counters: carbs, fruit, water, green tea
• Weight tracking, with a trend line that ignores day-to-day swings
• Guided breathing exercises, one step at a time
• Recipe ideas for the way you eat: omnivore, pescatarian, vegetarian or vegan
• Timers and reminders for the waiting periods

WHAT THERE ISN'T
No calories to count. No subscription. No ads. No account to create. No photos of your plate.

EVERYTHING STAYS WITH YOU
Lekki works fully offline and sends nothing anywhere. No account, no sign-up, no connection. Your answers, your weigh-ins and your days never leave your phone. Use it on a plane, on the train, abroad.

QUESTIONS PEOPLE ASK
Is this a diet? No. Nothing is forbidden and nothing gets weighed, it's about building habits.
Do I have to fast? You push your first meal back. It isn't a strict fast, and the length follows your level.
What if I miss a day? Nothing breaks. You pick it up the next day and your history stays.
Do I need a smart scale? No, you type your weight in whenever you like.
Does it work without a connection? Yes, completely.

IN FRENCH AND ENGLISH
The app follows your phone's language, in kilograms or pounds, Celsius or Fahrenheit. Both settings can be changed by hand.

WHO'S BEHIND IT
Lekki is made by Julie Gri, a food blogger since 2017 and a mobile app designer since 2012.

DISCLAIMER
Lekki is not a medical device and does not replace professional advice. The programme combines morning fasting, cold exposure, caffeine and limited carbohydrates. Talk to a doctor before you start, in particular if you have a heart condition, high blood pressure or diabetes, if you are pregnant or breastfeeding, or if you have a history of disordered eating. Adults only.

LAUNCH VERSION
Lekki is completely free. This first version is here to gather your feedback and improve the programme.

6 weeks to feel lighter, one day at a time.
Weight loss in 6 weeks: build habits, track your weight. Fully offline.
Updated on
Oct 4, 2026
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Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • No data shared with third parties
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  • No data collected
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What’s new

Your day now shows as a percentage, in the middle of the ring.

A new drawing for the glass of water, in the counter and in the wake-up task, and every icon now has the same line weight.

The About page now links to juliegri.fr.
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Everyone
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App support

About the developer
JULIE MARIE GRIENENBERGER
julie.grien@gmail.com
81 Rue Principale 67870 Bischoffsheim France