mySunMoon vs Helios UV
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
mySunMoon
This app displays sunrise, sunset, moonrise, and moonset times. It can use your device's current location or a custom date and location for its calculations. It also shows the current moon phase.
- Sunrise and sunset times
- Moonrise and moonset times
- Moon phase display
- Custom date and location support
- Uses device's current location
- Featured by iTunes
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Shows sunrise, sunset, moonrise, moonset and moon phase, based on current data of device, or based on custom date and location. - Featured by iTunes in Italy, Belgium, France, Germany, Spain, Switzerland
Helios UV
Track the UV index with live forecasts and personalized burn-time predictions based on your skin type. Receive alerts for dangerous UV levels and customize your experience with various color palettes and widgets across all your Apple devices.
- Live UV index forecasts
- Personalized burn-time predictions
- Threshold alerts for UV levels
- Multi-device widgets
- Customizable color palettes
- Powered by Apple WeatherKit
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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/
Screenshots
Verdict
The clearest difference is rating: Helios UV at 5.0 against mySunMoon's 2.0. Helios UV also leads on update cadence (monthly vs every 3 months). mySunMoon's advantage is iOS requirement (10.0 vs 17.0). On price, ratings volume, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. mySunMoon sells 1 one-off in-app purchase and Helios UV sells 3 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.
Helios UV holds the better App Store score, 5.0 against 2.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.
mySunMoon ships an update every 3 months, Helios UV monthly. The most recent releases landed on October 17, 2026 and October 6, 2026 respectively.
| Parameter | mySunMoon | Helios UV |
|---|---|---|
| Price | Free | Free |
| Rating | 2.0 (1 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 1 | 1 |
| Update frequency | Every 3 months | Monthly — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Freemium |
| Devices | iPhone, iPad, iPod, Apple TV, Apple Watch | iPhone, iPad, Mac, Apple TV, Apple Watch |
| Requires iOS | 10.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 33 MB | 16 MB |
| Age rating | 4+ | 4+ |
| Developer | Roberto Sonzogni | Kludge Ltd |
Customer experience
mySunMoon
Helios UV
In-app purchases
mySunMoon
- Disable ads$0.99
Helios UV
- Helios UV Pro Monthly7 Days trial2 variants$0.991 Month
- Helios UV Pro Yearly7 Days trial2 variants$9.991 Year
- Helios UV Pro Family Yearly7 Days trial2 variants$14.991 Year









