Fastinja
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About this app
Fastinja: Simple. Private. No Nonsense.
Fastinja is a lightweight, privacy-focused tool designed to help you track your fasting windows, hydration, weight, and mood without the noise of subscriptions, ads or data tracing and harvesting.
Why choose Fastinja?
🚀 Privacy-First: No accounts. No cloud servers. No data harvesting. Everything you log stays exclusively on your phone.
🚀 Instant Start: No onboarding interrogation. Download the app and start your first fast in seconds.
🚀 Offline by Design: No internet connection required. Your data is yours, forever.
🚀 No Subscriptions: One-time access to a clean, focused experience. No monthly fees, ever.
Key Features:
🚀 Circular Fasting Timer: A beautiful, high-resolution view of your progress, goals, and logs in one glance.
🚀 Smart History: Visualize your journey. Review past fasts to see which goals you met.
🚀 Hydration Log: Customize your drink types—water, black coffee, or tea—and stay hydrated.
🚀 Weight Trends: Track your body transformation with clean charts focused on long-term progress (kg/lbs).
🚀 Mood Tracking: Fasting affects the mind and body. Log how you feel to find the fasting window that maximizes your energy and mental clarity.
🚀 Full Data Ownership: Export your entire history to a JSON file for manual backups or to move your data to a new device.
A Healthier You, A More Private World.
Fastinja is designed for those who want a professional tool for Intermittent Fasting (IF) without giving up their personal privacy.
Whether you are doing 16:8, OMAD, or custom fasting windows, Fastinja provides the precision you need.
Disclaimer: Fastinja is a tracking tool and does not provide medical advice.
Consult a healthcare professional before starting any new fasting routine.
Fastinja is a lightweight, privacy-focused tool designed to help you track your fasting windows, hydration, weight, and mood without the noise of subscriptions, ads or data tracing and harvesting.
Why choose Fastinja?
🚀 Privacy-First: No accounts. No cloud servers. No data harvesting. Everything you log stays exclusively on your phone.
🚀 Instant Start: No onboarding interrogation. Download the app and start your first fast in seconds.
🚀 Offline by Design: No internet connection required. Your data is yours, forever.
🚀 No Subscriptions: One-time access to a clean, focused experience. No monthly fees, ever.
Key Features:
🚀 Circular Fasting Timer: A beautiful, high-resolution view of your progress, goals, and logs in one glance.
🚀 Smart History: Visualize your journey. Review past fasts to see which goals you met.
🚀 Hydration Log: Customize your drink types—water, black coffee, or tea—and stay hydrated.
🚀 Weight Trends: Track your body transformation with clean charts focused on long-term progress (kg/lbs).
🚀 Mood Tracking: Fasting affects the mind and body. Log how you feel to find the fasting window that maximizes your energy and mental clarity.
🚀 Full Data Ownership: Export your entire history to a JSON file for manual backups or to move your data to a new device.
A Healthier You, A More Private World.
Fastinja is designed for those who want a professional tool for Intermittent Fasting (IF) without giving up their personal privacy.
Whether you are doing 16:8, OMAD, or custom fasting windows, Fastinja provides the precision you need.
Disclaimer: Fastinja is a tracking tool and does not provide medical advice.
Consult a healthcare professional before starting any new fasting routine.
Updated on
Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
No data collected
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What’s new
• Light theme — switch between dark and light in Settings
• App Walkthrough — interactive guide explaining every screen (auto-starts on first launch, re-run anytime
from Config)
• Clock glass icon now always visible — shows "🥛 -" when no drinks logged yet
• Bug fixes and display improvements
• App Walkthrough — interactive guide explaining every screen (auto-starts on first launch, re-run anytime
from Config)
• Clock glass icon now always visible — shows "🥛 -" when no drinks logged yet
• Bug fixes and display improvements
Everyone
Learn moreApp support
About the developer
Pawel Bednarski
dev@classcell.com
5 Esthwaite Close
MANCHESTER
M24 5AT
United Kingdom
