Online UVpal Demo
Know exactly when to reapply sunscreen using real time data. Try it Yourself
The Problem
Most people don’t reapply sunscreen at the right time.
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UV levels change constantly throughout the day
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Sunscreen effectiveness varies by SPF and skin type
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Sunburn often happens before people realize it
This leads to unnecessary skin damage and increased long-term health risks.
Our Solution
UVpal provides real-time, personalized guidance on sun exposure.
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Measures live UV index using your location
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Accounts for SPF protection level
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Adjusts based on user skin type
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Calculates how long you can safely stay in the sun
Simple inputs turns into actionable data.
How it Works
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User selects their sunscreen SPF
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User selects their skin type (Fitzpatrick scale)
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Device reads real-time UV index
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System calculates safe exposure time
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Result is displayed instantly
Safe Time =
UV Rating (1 - SPF Blocking %)
Skin Type Time Till Burn

This calculation combines:
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Skin burn time based on skin type
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SPF effectiveness (percentage of UV blocked)
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Real-time UV intensity
The result is a personalized safe exposure time.
System Testing

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Verified UV readings against real-world data
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Tested device outdoors under different conditions
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Debugged using breakpoints and iterative testing
Our Vision
UVpal brings real-time, personalized sun safety to your phone.
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Live UV tracking based on your location
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Custom exposure limits
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Smart reminders to reapply sunscreen
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Adjusts for activities like swimming or sweating
Complex data into clear decisions. Stay protected without thinking about it.
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