FastArc
Offline 16:8 fasting timer with metabolic stages and lock-screen widget.
FastArc is a lightweight, zero-bloat intermittent fasting timer built specifically for the 16:8 protocol. Designed with an offline-first philosophy, it requires zero account creation, displays zero advertisements, collects zero telemetry, and operates completely without an internet connection.
KEY FEATURES
• Zero-Bloat 16:8 Protocol Engine
Track your 16-hour fasting window and 8-hour eating window with precision. Clear elapsed time, remaining countdown, and projected finish targets updated in real time.
• Real-Time Metabolic Stage Telemetry
Understand what happens inside your body as your fast progresses through 4 distinct physiological stages:
1. Digestion & Blood Sugar Stabilization (0h – 4h)
2. Glycogen Depletion & Fat Mobilization (4h – 12h)
3. Ketosis & Accelerated Fat Oxidation (12h – 16h)
4. Autophagy Threshold & Cellular Cleanup (16h+)
• Lock-Screen & Home-Screen Keyguard Widget
Check your fasting progress without unlocking your device. FastArc includes a native Android AppWidget compatible with both home screens and keyguard lock screens, displaying active fasting status, elapsed time, and metabolic stage at a glance.
• Public Lock-Screen Notification Live Tile
Optional silent, ongoing notification tile with Android Public Visibility lets you view your live fasting countdown and log water intake directly from your lock screen.
• One-Tap Quick Start Adjustment
Forgot to tap start right after dinner? Adjust your start time backward in one tap (-15m, -30m, -1h, -2h, or custom time) without resetting your history.
• Hydration Logger
Quickly log water intake in 250ml intervals to maintain optimal hydration during fasting windows.
• Working Dark, Light & Auto Themes
Built with athletic typography, high-contrast visual telemetry, and dynamic themes designed for instant readability indoors, outdoors, or in pitch darkness.
• True Native Android Performance
Written cleanly in pure native Android framework code. Under 1 MB total download size, instant cold start in under 50 milliseconds, and zero background battery drain.
Technical Specifications & Architecture
Frequently Asked Questions
Is FastArc completely offline?
Yes. FastArc operates entirely locally on your Android device without requiring internet connectivity or external server calls.
Does this utility collect any telemetry or personal data?
No. KimRosil App Studio adheres to a strict zero-telemetry standard. No analytics SDKs, advertising frameworks, or background trackers are included in the binary.
How do I install the direct APK?
Click the "Download APK" button above to get the signed APK binary directly from our verified GitHub Releases CDN. Open the downloaded file to install on your Android device.