Free tools
Free TanMeter Tools
Practical web tools that pair with TanMeter. Use them free in the browser, then continue on iPhone.
- UV Index by City Lookup Enter any city name and TanMeter returns the live UV index, today's peak UV hour, and recommended maximum sun exposure based on your skin type.
- SPF Recommendation by Skin Type Select your Fitzpatrick skin type (I–VI) and TanMeter recommends the minimum SPF, application amount, and reapplication interval for today's UV conditions.
- Safe Sun Exposure Time Calculator Enter your skin type, SPF used, and current UV index and TanMeter calculates the maximum minutes you can stay in direct sun before risking a burn.
- Sunscreen Reapply Timer TanMeter starts a countdown from your last application and sends push alerts when it is time to reapply—adjusting for swimming, sweating, and towel drying.
- Sunburn Risk Checker TanMeter combines your skin type, today's UV index, planned exposure duration, and environmental factors into a red-yellow-green burn risk score.
- Vitamin D vs Sunburn Balance Guide TanMeter calculates the minimum sun exposure minutes needed for adequate vitamin D synthesis at your latitude and skin type—without crossing into burn territory.
- Beach Day UV Planner Pick a beach location and date and TanMeter builds an hourly UV timeline with recommended sun windows, shade breaks, and SPF reapplication points.
- Sun Exposure Session Log Log each sun session with start time, duration, SPF used, and UV index and TanMeter builds a weekly exposure chart so you can spot overexposure trends.
- Cloud Cover UV Adjustment Calculator Enter current cloud cover percentage and TanMeter recalculates effective UV exposure—because thin clouds can increase UV by scattering and thick clouds still pass up to 80%.
- Kids Sun Safety Timer Enter your child's age and skin type and TanMeter sets a shorter safe sun window with gentle reapply alerts designed for pediatric skin protection.