SATTY gives you hormone-aware, stress-protective fasting guidance — built for real women (and men), not internet trends.
I am
♀Female
♂Male
My primary goal
⚡Hormone balance
🔥Fat loss
🌱Gut health
🧠Mental clarity
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🌸
Your hormonal picture
This is where SATTY truly personalises. Answer honestly — the app adapts around you.
Menstrual status
Regular cycle
Irregular cycle
Perimenopause
Menopause
Stress level
Low 😌
Moderate 😐
High 😓
Very high 🔴
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⏱️
Your fasting experience
No experience is needed. SATTY starts where you are, not where Instagram says you should be.
Fasting background
New to fasting
Intermittent (12–16 hrs)
Extended fasting experience
Previous reactions (select any)
Anxiety 😰
Fatigue 😴
Hair shedding 💇
Insomnia 🌙
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✦
Your personalised fasting window
Based on your high stress, regular cycle, and intermediate fasting experience.
13–14
hours · recommended window
Cortisol protection is prioritised. Longer fasts only recommended in your follicular phase (days 6–13). No-fast days are built in for luteal phase recovery.
✓ Hormone-aware✓ Stress-protective✓ Cycle-aligned
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Good morning,
Sarah
SL
🌱
Follicular phase · Day 8
Optimal fasting window today
›
Current fast
Fasting
11:42
84% of 14h
06:12
Started
20:12
Target end
2h 18m
Remaining
Today's insights
⚡
Longer fasts tolerated
Follicular phase boosts insulin sensitivity
💪
Strength training day
Optimal muscle-building window this week
🍳
How to break your fast
Protein-first protocol ready for you
Daily check-in — how do you feel?
⚡Energy
😊Mood
😴Sleep
🌸Hormones
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Your cycle
Cycle day 8 of 28
🔴 Menstrual · Days 1–5
Gentle 12h fasts. Rest and warmth are prioritised. Iron-rich foods support recovery.
Fast window: 12h max
🌱 Follicular · Days 6–13
You are here
Longer fasts are well-tolerated. Higher insulin sensitivity makes this your peak metabolic window. Strength training is highly encouraged.
Fast window: 13–16h
🌕 Ovulation · Days 14–16
Peak energy and libido. Moderate fasts. Prioritise protein for muscle repair. Social and collaborative energy is high.
Fast window: 12–14h
🌒 Luteal · Days 17–28
Shorter fasts protect progesterone. Higher protein and minerals are essential. Optional no-fast days are built in.
Fast window: 11–13h
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Break your fast
Nourish — don't restrict
Protocol for today
Start with protein + fat to stabilise blood sugar
Avoid sugar or refined carbs for the first 60 minutes after breaking your fast. Your follicular phase supports faster metabolic recovery.
Eat first — tap to learn more
🥚
Eggs
Complete protein · gentle on digestion · supports cortisol balance
🥑
Avocado
Healthy fats · potassium · anti-inflammatory
🐟
Salmon
Omega-3 · hormone support · anti-inflammatory
🫐
Berries
Low-glycaemic · antioxidants · gut support
🥜
Almonds
Magnesium · healthy fats · blood sugar stable
🧀
Cottage cheese
High protein · calcium · easy absorption
💧
Electrolytes before eating
Salt, magnesium or coconut water first
Avoid in first 60 minutes
✕
Sugary drinks or fruit juice
✕
Refined carbs or white bread
✕
Large meal volume all at once
✕
High-caffeine drinks immediately
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Your progress
Trends, not obsession
🔥
12
Day streak
Best streak: 21 days · Keep going
⚡
8.2
Avg energy score
↑ +0.4 this week
⏱️
13.4h
Avg fast length
↑ On target
😴
7.1h
Avg sleep
→ Stable
😊
7.8
Avg mood score
↑ +1.2 vs last week
This week — energy, mood & sleep
Energy
Mood
Sleep
🤖 AI pattern detected
You fast better on lower-stress days. Your energy scores are 1.8 points higher when you sleep before 10:30pm the night before.
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🌿
Ask SATTY
Your hormone-aware guide
🌿
Hi Sarah! I'm SATTY — your personalised fasting and hormone guide. 💚
Tap a question below, or ask me anything about fasting, your cycle, or how to nourish your body right now.