Your sleep, stress, and schedule affect your cravings more than discipline. Circado shows you the connections so you can finally break the cycle.
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Log Caffeine
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Fasting Stages
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Research shows these factors affect your cravings more than willpower:
Circado tracks all of this — so you can see your personal patterns and work with your body, not against it.
No more switching between 5 different apps
Take a photo, get calories and macros instantly. Powered by advanced AI — no manual searching.
16:8, 18:6, or custom. See which fasting stage you're in — from Fed State to Deep Ketosis with scientific explanations.
Know when to drink coffee based on your cortisol rhythm. Avoid the 400mg daily limit. Track 9 different drinks.
Get a 0-100 score based on duration, quality, and awakenings. Understand how sleep affects your diet.
See your fasting timer and nutrition at a glance. No need to open the app every time.
Earn achievements for consistency, not perfection. Day Warrior, Sleep Master, Early Bird, and more.
Also includes:
Log meals (with AI or manually), sleep, coffee, and workouts. Takes seconds, not minutes.
See correlations between your sleep quality and cravings. Discover your personal patterns.
Get insights based on your data. Know which days are risky and what to do about it.
Every feature is backed by peer-reviewed science
6 metabolic stages from Fed State to Deep Ketosis, based on research by Anton et al. (Cell Metabolism, 2018) and de Cabo & Mattson (NEJM, 2019).
View on PubMed →Optimal coffee timing based on cortisol awakening response. 400mg daily limit from FDA guidelines.
FDA Guidelines →Poor sleep increases ghrelin (hunger hormone) and decreases leptin (satiety). Research shows 45% higher obesity risk with sleep deprivation.
View on PubMed →Other apps focus on just one thing. Circado connects the dots.
| Feature | Other Apps | Circado |
|---|---|---|
| Fasting Timer | ✓ | ✓ |
| Meal Logging | ✓ | ✓ |
| Weight Tracking | ✓ | ✓ |
| AI Food Scanner | ⚠️ | ✓ |
| Sleep Tracking | ✗ | ✓ |
| Caffeine Tracking | ✗ | ✓ |
| Health Correlations | ✗ | ✓ |
| Plateau Detection | ✗ | ✓ |
| Circadian Rhythm Focus | ✗ | ✓ |
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No judgment. Just data.
