Glucose Challenge : Carb Log

No needles needed. Snap your meal to log carbs, check off daily actions, and see your glycation score move. Based on real sensor data from 300 people.

No needles. Build blood sugar habits that stick.

Understanding your blood sugar has always meant wearing a sensor on your arm. Glucose Challenge helps you build the habits without one.

■ Built on data from 300 real people

Since 2020, over 300 participants wore medical-grade continuous glucose monitors (FreeStyle Libre) while logging every meal and daily action. That data shows which behaviors tend to raise blood sugar, and which ones help keep it steady.

Medical professionals reviewed that data, and now it comes back to you as the actions to take today.

■ Blood sugar isn't only about food

Sleep, movement, stress — all of it matters. So the daily actions you get go beyond what's on your plate.

■ Two things to do

【1. Snap your meal】 One photo. The AI estimates your carbs. No typing, no counting. Everything stacks up on a graph so you can see instantly whether you've gone past your target.

【2. Mark today's actions】 "Vegetables first." "Move after eating." Simple actions arrive each day. Just tap whether you did them.

■ These two become your score

Your logged carbs and your action completion rate generate a glycation score and a spike score. Your estimated A1c and 5-year diabetes risk appear on the same dashboard.

You see your own numbers without wearing a sensor. That's what 300 people's real data makes possible.

■ Keep going, and it evolves

Your avatar levels up from Lv1 to Lv3 as you complete actions, and each level unlocks the next stage of habits. You start where you are and build from there.

■ Never wonder what to eat

Pick your goal (clear skin, weight, anti-aging, general health, diabetes prevention) and your situation (weekday lunch, dinner), and you'll get specific suggestions for convenience stores, restaurants, or cooking at home.

Do it long enough and you'll start choosing well without opening the app. That's the goal.

■ Also included ・Carb targets you set yourself (relaxed 130g / recommended 　100g / strict 70g) ・Daily and weekly weight graphs with your target line

【Who this is for】 ・You spend on skincare but your skin still isn't where you 　want it ・You've dieted repeatedly and gained it back ・Your A1c or fasting glucose came up at a checkup ・You're too busy for calorie counting and manual logging

【Subscription plans】 A 3-day free trial gives you access to everything. ・Basic (¥1,100/mo): Unlimited AI photo analysis, daily 　actions, dashboard ・Standard (¥1,650/mo): Basic plus meal programs for weight, 　skin, anti-aging and general health ・Premium (¥2,200/mo): Everything, including the 　medically-reviewed diabetes prevention program and 5-year 　risk assessment

*Results vary by individual and are not guaranteed.

【Medical disclaimer】 Estimated A1c, diabetes risk scores, and AI meal assessments are simulations based on the data you enter. This app is not a medical device and does not provide medical diagnoses or definitive test results. For accurate measurement or any health concerns, please consult a physician.

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