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.