Sunly: UV & Tanning Plan

☀️ Sunly — your personal sun companion for mindful tanning without sunburn.

Track UV. Build a smart routine. Stay protected. Glow at your own pace.

✨ WHAT SUNLY DOES

• Live UV index for your exact location, refreshed via Open-Meteo (Frankfurt EU)
• Personalized tanning plan based on your skin type, goals, and current weather
• Optional AI skin type scan in 5 seconds — Vertex AI in Frankfurt, no photo storage
• Step-by-step tanning routine with vibration reminders (works even when screen is off)
• Vitamin D window estimate based on UV intensity and your skin type
• 7-day weather and UV forecast at a glance
• Beautiful streak tracking for daily consistency

🔒 PRIVACY-FIRST DESIGN

Sunly is built ground-up for users who care about their data:
• No account, no login, no email collection
• No tracking, no advertising IDs, no analytics on your behavior
• No ads, ever — supported by mindful product design, not ad networks
• All your profile, sessions, and photos stay on your device
• Optional crash reporting via Sentry (Frankfurt) — fully toggleable in Profile
• AI processing exclusively in EU (Google Vertex AI Frankfurt) — no photo storage, no model training on your data
• Full data deletion in 2 taps: Profile → Reset data

🌿 WELLNESS COMPANION, NOT MEDICAL DEVICE

Sunly helps you tan more thoughtfully — it is not a medical device and does not replace medical advice. For skin changes, moles, photosensitizing medications, or any health concern, please consult your dermatologist.

Use is recommended for users aged 16 and older.


Sunly is a private, non-commercial hobby project by Marius Alexander Becker (Plettenberg, Germany). All sub-processors operate under EU GDPR data processing agreements (Google Cloud, Cloudflare, Sentry — all DPA-covered).

📧 Contact: mail@mariusbecker.me
🔗 Privacy & Terms: https://de34dm32ksm.github.io/sunly-legal/

⭐ FEATURES IN DETAIL

UV TRACKING
Live UV index for your location, automatically updated. See current intensity, daily peak, and 7-day forecast. Gentle warnings when UV gets extreme.

PERSONALIZED PLAN
Sunly creates a tanning plan tailored to your skin type, current UV, and chosen intensity (mild, balanced, intensive). Recommended SPF and minutes per side adjust automatically.

ROUTINE TIMER
Vibration-guided step-by-step routine: lotion, water, sun (per side), water, mineral, glow. Reliable step-end vibration even when screen is off — no battery-draining background service needed.

PROGRESS TRACKING
Optional AI-powered skin tone analysis lets you track your tanning progress over time. Photos stored locally only — never on any server.

VITAMIN D
Estimate your vitamin D window based on UV intensity and skin type — know when sun gives you a meaningful dose