Snap meals, track carbs & A1c
Enter your goal weight to get your daily carb target. Then just snap your meals — AI estimates the carbs. Daily habit checks feed your scores. Supervised by a pro.
Get your daily carb target from your goal weight.
Build blood-sugar-care habits — no needles required.
Understanding blood sugar has traditionally meant wearing a
sensor on your arm. Glucose Challenge helps you build lasting
habits through your daily meals and actions — no sensor needed.
■ Start with your goal weight
Enter your current and goal weight, and we'll suggest a daily
carb target that fits you (Gentle 130g / Recommended 100g /
Strict 70g).
If you have a larger gap to close, we suggest starting with a
sustainable target and stepping down after a month. Strict
limits mean nothing if you can't keep them up.
That target becomes the goal line on your daily graph — so you
always know how much you have left today.
■ Built on data from 300+ participants
Since 2020, over 300 people have worn a medical glucose sensor
(FreeStyle Libre) while logging their meals and daily actions.
That data shows, in numbers, which habits raise blood sugar and
which ones help prevent spikes.
A healthcare professional reviews that data and turns it into
the actions you should take today.
■ Blood sugar isn't only about food
Sleep, exercise, stress — all of it affects your blood sugar.
So the habits you receive go beyond what's on your plate.
■ Two things to do each day
【1. Photograph your meal】
One photo is all it takes. AI estimates the carbs — no typing,
no calculating. Every entry stacks up on your graph, so you can
see at a glance whether you've passed your target.
【2. Check off today's actions】
"Vegetables first." "A short walk after eating." Habits arrive
each day. Just tap whether you did it or not.
■ These two become your scores
Your logged carbs and your habit completion rate feed into your
Glycation Score and Spike Score. Your estimated HbA1c and
5-year diabetes risk appear on the dashboard too.
No needles — and you can still see where you stand, in numbers.
That's what 300+ participants' real data makes possible.
■ The longer you go, the further you get
Your avatar evolves from Lv1 to Lv3 as your completion rate
rises, and each level unlocks the next stage of habits. You
start where you are, and build from there.
■ No more wondering what to eat
Pick your goal (clear skin, weight care, anti-aging, wellness,
diabetes prevention) and your situation (weekday lunch, dinner),
and you'll get specific options for convenience stores, dining
out, and home cooking.
Repeat it daily, and eventually you'll choose well without
opening the app. That's the goal of this program.
■ Also included
・Daily and weekly weight graphs with a goal line
・Carb breakdown per meal, plus advice to help prevent spikes
【Who this is for】
・You spend on skincare, but your skin still isn't where you want it
・You've tried diets before and gained it back
・Your blood sugar or HbA1c came up at your last checkup
・You're busy, and detailed logging or calorie counting never sticks
【Subscription plans】
A 3-day free trial gives you access to everything.
・Basic (¥1,100/mo): Unlimited AI photo analysis, daily habits,
dashboard
・Standard (¥1,650/mo): Basic plus meal programs for weight care,
beauty, anti-aging, and wellness
・Premium (¥2,200/mo): Everything, including the healthcare-
supervised diabetes-prevention program and 5-year risk insights
*Results vary by individual. No outcome is guaranteed.
【Medical disclaimer】
Estimated HbA1c, diabetes risk scores, and AI meal analysis in
this app are simulations based on the data you enter. This app
is not a medical device and does not provide medical diagnosis
or definitive test results. For accurate measurement or any
health concerns, please consult a physician.
Terms: https://health-app-policy.quiet-time.jp/kiyaku
Privacy: https://health-app-policy.quiet-time.jp
Chrome-Stats does not own this Apple app. Please use these information below to contact the Apple app developer.