Your hormones control your weight more than calories do. FemFast turns your cycle into a fat-loss plan - fasting, nutrition & AI built around your hormones.
Your hormones control your weight more than calories do.
Most women don't fail at diets because of willpower — they fail because generic plans ignore the hormonal shifts that change your metabolism, cravings and energy every single week. FemFast changes that.
FemFast turns your hormonal cycle into a personal weight-loss plan: the right fasting window, the right foods and the right workouts — for where your hormones are today.
HOW HORMONAL WEIGHT LOSS WORKS
- Cycle-Synced Fasting
Your body handles fasting differently across your cycle. FemFast recommends fasting windows that align with your hormonal phase — so you burn fat efficiently without tanking your energy or cortisol.
- Hormonal Nutrition
What you eat in your follicular phase should be different from your luteal phase. FemFast gives you daily food guidance that supports fat loss, stable blood sugar and real energy.
- More Energy, Less Cravings
Understand why cravings, fatigue and mood shifts happen — and get a plan that works with your hormones, not against them.
- Smart Symptom & Cycle Tracking
Track energy, mood, weight and cycle patterns in seconds. The more you log, the smarter your plan gets.
- Your AI Hormone & Weight Coach
Ask anything about fasting, nutrition, your cycle or hormones — anytime. Get answers tailored to your phase, your goals and your body.
FEMFAST IS FOR WOMEN WHO:
• Have tried diets but keep hitting a plateau
• Feel like their weight changes with their cycle — and want to use that
• Want to lose weight without starving or extreme restriction
• Are 30–50 and feel like their metabolism has shifted
• Want to understand what their hormones are actually doing
IMPORTANT DISCLAIMER
FemFast provides general educational information and wellness insights. It is not a medical device and does not provide medical advice, diagnosis, or treatment. Always consult a qualified healthcare professional regarding medical conditions.
Terms of Use: https://femfast.io/termsofuse
Privacy Policy: https://femfast.io/privacypolicy
Apple EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
FemFast is designed for users 17+ and is not intended for children.
I loved this app and it helped with my PCOS and cycle and it was great! But now, nothing. Can’t see any of the options on the Today or My Plan tab. Very disappointed. Hope they fix soon.
Developer Response
Thank you so much for your comment — and please accept our sincere apologies for the recent issue. You helped us uncover a bug that temporarily affected the Today and My Plan tabs. We’ve already fixed it, and the app is now back to working smoothly and reliably.We truly appreciate your support and are very happy to know that our app has helped you with PCOS and your cycle. You’re always welcome here 💛
Liars
freezetagrules
Said that there was a money-back satisfaction guarantee. I was not satisfied and asked for money back into 24 hours and they ghosted me.
Developer Response
Hi there,We’re sorry to hear you’re disappointed. Refund requests are handled according to our stated policy and require specific purchase details to process.If you haven’t already, please contact us at support@femfast.io, so our team can review your request properly. We’re happy to help clarify next steps.
Stability improvements and minor bug fixes.
Version 1.0.20
The developer, Vladimir Vassilevski, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
Identifiers
Data Linked to You
The following data may be collected and linked to your identity:
Health & Fitness
Contact Info
Identifiers
Sensitive Info
Privacy practices may vary, for example, based on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
Seller
Vladimir Vassilevski
Size
61.9 MB
Category
Health & Fitness
Compatibility
Requires iOS 15.1 or later.
iPhone Requires iOS 15.1 or later.
iPod touch Requires iOS 15.1 or later.
Mac Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
