
Fastelle: Intermittent Fasting
Intermittent Fasting for Women
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About
Built for your body, not his.
Most fasting apps were designed around male physiology. One window, same hours every day, applied to everyone. That's not how your body works. You have a cycle, and your hormones change pretty much everything: hunger, energy, sleep, how recovery feels.
Fastelle is built around that cycle instead of pretending it doesn't exist.
Fasting that moves with your cycle
Your hunger in week one is not the same animal as your hunger in week three. Fastelle knows where you are in your cycle and adjusts your windows accordingly. During your period it pulls things back. Through follicular and ovulation, when most women feel strongest, it lets you push a bit. Then in the luteal stretch, when cravings and fatigue usually spike, it eases off again. You stop white-knuckling through fasts that were never written with you in mind.
See what's actually happening
The timer walks you through the six stages of a fast, from rising blood sugar through fat burn into autophagy. Hour 14 looks different from hour 16, and the app shows you why, so the time stops feeling like dead waiting.
Food that follows the same logic
Log meals, calories, protein, carbs and fat in one place. Your daily targets shift with your phase, because day 2 you and day 14 you are basically two different people, nutritionally speaking.
A plan that's actually yours
No off-the-shelf protocol pulled from someone else's body. Your week is shaped by your cycle, your goals, and what you can realistically handle right now. You can see what's coming in the next phase, which makes it easier to plan groceries, workouts and social stuff around it.
Progress you can see
Fasting streaks, weekly hours, hydration, weight trend, nutrition. All in one view, so you can tell whether what you're doing is actually working.
For PCOS, irregular cycles, and bodies that don't behave
Fastelle works whether you've been fasting for years or you're just trying it this week. It doesn't assume your cycle is textbook regular. It doesn't assume your body is the same every day. For most women, it isn't.
Download Fastelle.
Full access to Fastelle requires an active subscription. Plans are available as a monthly or annual subscription with a 14-day free trial. Pricing is displayed on the subscription screen before any purchase is made. Payment is charged to your Apple ID at confirmation of purchase. Subscriptions automatically renew unless cancelled at least 24 hours before the end of the current period. Manage or cancel your subscription at any time in your Apple ID account settings.
Terms of Use: https://fastelle.github.io/legal/terms
Privacy Policy: https://fastelle.github.io/legal/privacy
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What's New in Fastelle
1.1
June 17, 2026
- Refined experience for steady-plan users (PCOS with irregular cycles, perimenopause, postmenopause, hormonal contraception, thyroid, and others) - PCOS users on the flat plan can log a new period in one tap - Bug fixes
MoreSubscription plans
Fastelle Pro Monthly
Weekly subscription
$5.991 Month
14 Days trial



