TanSmarter

About

TanSmarter is an iOS tanning companion built around real UV data. It guides a whole session rather than running a timer, using live UV readings and exposure times calculated for your Fitzpatrick skin type.

Free, with no subscription.

Website: TanSmarter

Key Features

Real-time UV index. Live monitoring with severity levels, so you know when it is actually safe.
Smart tanning windows. Morning and evening slots calculated from UV forecasts.
Five-day UV forecast. Weather integration covers your location.
Guided five-step sessions. Prepare, front, flip, back and aftercare, with audio flip alerts.
Skin-type personalisation. Durations derive from Fitzpatrick type and adjust to current UV.
Dynamic SPF recommendations. Safe exposure limits keep a session short of burning.
Progress tracking. Weekly statistics, streaks, a full session log and per-session location.

Tech Stack

TypeScript
React Native (Expo)
TanStack Start
TanStack Router / Query / Form
Convex
Clerk
Tailwind CSS
shadcn/ui
Turborepo + Bun
Sentry

Screenshots

Website

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