> ## Content Index
> Fetch the complete content index at: https://buxmann.dev/llms.txt
> Use this file to discover other available public pages before exploring further.

# TanSmarter
- URL: https://buxmann.dev/tansmarter/
- Published: 2026-01-15T12:31:23.000Z
- Updated: 2026-08-16T05:28:40.000Z
- Description: A tanning companion for iOS with real-time UV data, timing personalised to your skin type, and guided sessions with audio cues.
- Author: Martin Buxmann
- Tags: #project

## 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](https://tansmarter.com/?ref=buxmann.dev)

## 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

![](https://buxmann.dev/content/images/2026/08/tansmarter-appstore-1.png)

![](https://buxmann.dev/content/images/2026/08/tansmarter-appstore-2.png)

![](https://buxmann.dev/content/images/2026/08/tansmarter-appstore-3.png)

![](https://buxmann.dev/content/images/2026/08/tansmarter-appstore-4.png)

![](https://buxmann.dev/content/images/2026/08/tansmarter-appstore-5.png)

![](https://buxmann.dev/content/images/2026/08/tansmarter-appstore-6.png)

## Website

![](https://buxmann.dev/content/images/2026/08/tansmarter-hero.png)

![](https://buxmann.dev/content/images/2026/08/tansmarter-features.png)