# Helios UV — Smart UV Tracking & Alerts > UV index tracker with personalized burn-time predictions and alerts for Apple devices. (iPhone/iPad app by Kludge Ltd.) - Source: https://appshunter.io/ios/app/helios-uv/id6761273364 (this page in markdown: same URL + `.md`) - Developer: [Kludge Ltd](https://appshunter.io/developer/1888571254) - Category: Weather, Health & Fitness - Price: Free with in-app purchases - Rating: 5.00/5 from 1 App Store ratings - Age rating: 4+ - Requires: iOS 17.0 · 12 MB - Languages: American English, French (France), German (Germany), Irish, Italian, Japanese, Korean, European Portuguese, Chinese (Simplified, China), European Spanish - Released: 2026-05-14 - Data updated: 2026-08-15 - Monetization: freemium - User reviews in markdown: https://appshunter.io/ios/app/helios-uv/id6761273364/reviews.md ## What is Helios UV? Helios UV is a beautiful, no-nonsense UV-index tracker for every Apple device you own. Live forecasts, burn-time predictions tailored to your skin type, threshold alerts, and widgets that follow the sun across your day. WHAT HELIOS DOES • Live UV index — updated hourly from Apple WeatherKit, with 30-second interpolation between samples so the displayed value tracks reality, not the last forecast tick. • Time to burn — personalized to your Fitzpatrick skin type (I–VI), the same six-type scale widely used in dermatology and public-health sun-safety guidance. Helios maps your skin type to a documented minimum erythemal dose and recomputes minutes-to-burn every 30 seconds against the current UV. • Trend you can read — a 24-hour forecast rendered as a Catmull-Rom-spline sparkline, segments colored by UV intensity. See the peak coming, and the safe-time crossings flagged. • Threshold alerts — pick the UV level that matters to you and Helios fires a local notification when the forecast crosses it (Pro). Dangerous-UV safety alerts are free for everyone. • Widgets — Home Screen, Lock Screen, watch face, Smart Stack, macOS desktop, Apple TV dashboard. Pro unlocks every surface. • 12 Pro color palettes — Mono, Mono Teal, Vegas Neon, Pastel, Response, and more. Standard and a colorblind-friendly High Contrast palette are included free. EVERYWHERE YOU WEAR, CARRY, OR SIT One purchase. Five platforms. Each surface drawn for the device it lives on: • iPhone & iPad — full dashboard, two widget sizes, threshold-crossing notifications • Mac — menu bar status item, dashboard window, four widget sizes • Apple Watch — four complications and a Smart Stack tile • Apple TV — a leanback living-room dashboard POWERED BY APPLE WEATHERKIT Every UV reading in Helios comes from Apple's own forecasting pipeline — the same data that powers Apple's built-in Weather app. No scraped feeds, no third-party API in front of someone else's API. PRIVACY Helios has no analytics SDKs, no advertising, no third-party crash reporters, and no Kludge-operated server. Location goes to Apple WeatherKit; subscriptions go to Apple StoreKit; settings stay on your device. Full privacy policy: https://heliosuv.kludgeltd.com/privacy PRICING Helios is free to use with the full UV index forecast and dangerous-UV safety alerts on every Apple device. Helios UV Pro unlocks every color palette, every widget, watch complications, the macOS menu bar item, custom threshold alerts, and the target-UV picker. • Monthly: $0.99/month • Yearly: $9.99/year (best value per month) • Family Yearly: $14.99/year, shareable with up to 6 family members via Apple Family Sharing All Pro tiers include a 7-day free trial. Cancel anytime in Settings → Apple ID → Subscriptions. The minutes-to-burn estimate is a guide, not medical advice. Wear sunscreen, reapply, and consult a dermatologist about your personal sun safety. LEGAL Privacy policy: https://heliosuv.kludgeltd.com/privacy Terms of Use (Apple Standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ ## Key features - Live UV index forecasts - Personalized burn-time predictions - Threshold alerts for UV levels - Multi-device widgets - Customizable color palettes - Powered by Apple WeatherKit ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Helios UV Pro Monthly | $0.99 | per month | | Helios UV Pro Yearly | $9.99 | per year | | Helios UV Pro Family Yearly | $14.99 | per year | | Helios UV Pro Monthly | $0.99 | per month | | Helios UV Pro Yearly | $9.99 | per year | | Helios UV Pro Family Yearly | $14.99 | per year | ## Frequently asked questions about Helios UV ### What is Helios UV? Helios UV is a weather application designed to track the UV index and provide personalized burn-time predictions based on your skin type. It offers live forecasts, alerts, and widgets for various Apple devices. ### Is Helios UV free to use? Helios UV is free to use with core features like the full UV index forecast and dangerous-UV safety alerts. Additional features such as custom threshold alerts and advanced widgets require a Pro subscription. ### What are the subscription options for Helios UV Pro? Helios UV Pro offers monthly ($0.99/month), yearly ($9.99/year), and family yearly ($14.99/year) plans. All Pro tiers include a 7-day free trial. ### How accurate is the burn-time prediction in Helios UV? The burn-time prediction is personalized to your Fitzpatrick skin type and recomputes every 30 seconds against the current UV index. It uses a documented minimum erythemal dose for estimation. ### Does Helios UV have ads? No, Helios UV does not contain advertisements. The app is committed to privacy and does not include analytics SDKs, advertising, or third-party crash reporters. ### On which Apple devices can I use Helios UV? Helios UV is available on iPhone, iPad, Mac, Apple Watch, and Apple TV. Each platform offers a tailored experience with specific widgets and features. ### How often is the UV index updated in Helios UV? The UV index is updated hourly from Apple WeatherKit. The app also uses 30-second interpolation to ensure the displayed value closely tracks real-time conditions. ### Can I cancel my Helios UV Pro subscription? Yes, you can cancel your Helios UV Pro subscription at any time. Cancellations can be managed through your device's Settings under Apple ID → Subscriptions. ## Version history (last 3 releases) ### 1.0.3 — 2026-07-21 • New Apple Watch complication: Sunrise & Sunset - see the next sun event's time at a glance. • Sunset and sunrise times are now astronomically precise, matching Apple Weather. • Offline is handled gracefully - a clear "No internet connection." message instead of endless spinning, with your cached forecast kept on screen. • Learn what the UV index means: a World Health Organization FAQ link in every About screen. • Color and target changes now reach your widgets immediately. • Dozens of fixes: complete translations in all 10 languages, correct time formats everywhere, a fresher watch app on open, better complication battery use, and more. ### 1.0.2 — 2026-06-23 • Saved locations now show times in their own timezone — sunrise/sunset and "safe until" times use the selected location's local time. • New iPhone Lock Screen widget: your UV target time, above the clock. • iPhone now updates your location automatically when you reopen the app somewhere new. • Fixed a too-dark paywall on first launch in Dark Mode. • Reliability improvements to location handling. • Sparkline updates ### 1.0 — 2026-05-21 No release notes. --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-15.*