J-Skin: Mole & Skin Tracker

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About this app

J-Skin — Mole Tracker & Skin Cancer Awareness App

J-Skin is a mole tracker and skin checker that helps you monitor moles and skin lesions over time. Photograph, measure, and compare your moles following the ABCDE
rule — the dermatologist-recommended method for early melanoma detection and skin cancer awareness.

MOLE TRACKING & SKIN MONITORING
• Mark moles on an interactive body map (front & back view)
• Take consistent mole photos using a reference coin for real-world scale
• Compare any two mole photos — slider, blink, or press-and-hold comparison modes
• Track mole changes over weeks, months, and years
• Get automatic mole measurements in millimeters

ABCDE SKIN SELF-EXAM
• Guided ABCDE self-check: Asymmetry, Border, Color, Diameter, Evolution
• Symmetry analysis with mirror view
• Color analysis with posterization
• Border regularity scoring (8-sector clock method)
• Diameter trend chart — track mole growth over time
• Change heatmap — visualize differences between two mole photos
• "Ugly duckling" comparison — view all your moles side by side

CONSISTENT MOLE PHOTOGRAPHY
• Ghost overlay shows your previous mole photo while shooting — match the same angle every time
• Auto-alignment overlays old and new photos precisely
• Locked exposure & white balance for accurate skin tone across sessions
• Multi-coin calibration: 1 PLN, 1€, 2€, US Quarter, £1, 1 CHF, 1 Kč

MOLE CHECK REMINDERS
• Set custom check-up intervals per mole (default: every 6 months)
• Get notified when a mole is overdue for a new photo
• Log symptoms: itching, bleeding, crusting
• Self-exam reminders to check your entire skin regularly

SHARE WITH YOUR DERMATOLOGIST
• Export a detailed PDF mole report — photos, measurements, ABCDE scores, and trends
• Log doctor visits and save dermatologist findings
• Pre-visit report helps you prepare for dermatology appointments

PRIVACY & SECURITY
• All mole photos and data stay on your device — no cloud, no third-party servers
• Optional encrypted backup to your personal Google Drive
• PIN or biometric (fingerprint/face) lock
• Your skin health data is never shared or uploaded

Available in: English, Polish, Spanish, German, Czech

⚠️ J-Skin is a personal mole tracking journal — not a medical device. It does not diagnose melanoma, skin cancer, or any skin condition. If you notice suspicious
changes in a mole (asymmetry, irregular borders, color changes, rapid growth, itching, or bleeding), consult a dermatologist immediately. Early detection saves
lives.

Download J-Skin — the mole tracker that helps you watch your skin health closely.

What’s new

First release — J-Skin 1.0.0
— Body map with 16 regions
— Mole measurements in millimeters (7-coin calibration)
— 4 photo comparison modes + change heatmap
— Auto-alignment (ORB + RANSAC)
— ABCDE analysis + diameter chart
— PDF report for your doctor
— Encrypted Google Drive backup
— 5 languages (PL/EN/ES/DE/CS)