TrekDay vs UV Timer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
TrekDay
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Tired of hiking for hours only to find yourself surrounded by fog or, worse, having to run from a sudden thunderstorm? TrekDay is your digital mountain guide. The only weather app designed exclusively for mountain lovers. Instead of making you decipher dozens of complex weather charts, TrekDay analyzes the data for you and gives you a clear score from 0 to 100 on the "Hike Quality". Choose your Level in your profile, and the algorithm will adapt to your needs: • Hiker? The app will look for sunny days and mild temperatures for safe walks. • Mountaineer? The app will analyze the freezing level and wind at altitude for your most demanding ascents. MAIN FEATURES: • Ruthless Algorithm: We analyze Thunderstorm Risk, Visibility (Low Clouds), Freezing Level, and Rain to tell you exactly when to lace up your boots. • Smart Push Notifications: Add your favorite huts or peaks, and we'll notify you when a "Perfect Hike" is on the way. • Gear Advice: Based on temperature and altitude, we suggest the right outfit (e.g., waterproof shell or fleece) and essential gear. • Legendary Database: Over 150 of the world's most beautiful huts, peaks, and national parks pre-loaded, from the Dolomites to Mont Blanc, from the Camino de Santiago to Everest Base Camp. And if your destination isn't there, you can search and add it! • Webcams & Maps: Access live webcams of the hut with a single tap to check snow conditions in real-time. TREKDAY PREMIUM: Upgrade to Premium to unlock the app's full potential: • Extended 10-day forecasts (to plan your weekends or holidays in advance). • Unlimited destinations saved on your Home screen. • Unlimited push notifications across all your trails. Stop taking risks in the mountains. Download TrekDay, pack your backpack, and enjoy the perfect view. --- Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
UV Timer
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UV Timer: Your Smart Sun Protection Companion UV Timer is now fully redesigned for iOS, faster, smoother, and built from the ground up to keep you sun-safe wherever you go. Real-time UV monitoring, intelligent sunscreen reminders, and comprehensive guidance, all in a beautiful native app. Accurate • Real-time UV index • Evidence-based SPF recommendations tailored to your skin type • Altitude-adjusted calculations for mountain and outdoor activities • Visible cloud cover and weather condition analysis Intelligent Timer System • Personalized sunscreen reapplication reminders • Smart timer adapts to UV intensity, skin sensitivity, and altitude • Background timer continues even when the app is closed • Haptic feedback and notification alerts Multi-Location Tracking • GPS-based UV monitoring for your exact location • Save your favorite cities and swipe between them on the home screen • Free tier includes 3 saved locations, add more anytime with in-app location packs • Real-time temperature, wind, humidity, and precipitation • Sunrise and sunset times for every saved location Severe Weather Alerts • Get notified the moment severe weather warnings are issued by official agencies • Tap the bell on the home screen to see active alerts in detail Personalized Protection • Skin type classifications for precise recommendations • Dynamic SPF suggestions based on current conditions • Practical sun safety tips and product guidance • Educational content Comprehensive Data • 24-hour UV forecast with hourly predictions • Interactive UV charts with current-hour indicators • Sunshine duration and visible cloud coverage • Temperature and weather condition monitoring • Sun path chart: Follow the sun's elevation at any hour of the day • Rain chart: Hourly precipitation 10 Languages • Available in English, Dutch, French, German, Italian, Spanish, Portuguese, Greek, Japanese, and Korean • Switch language instantly inside the app • Localized weather, location names, and time formats Privacy Focused • No accounts, no sign-in, no tracking • No analytics, no ads • Location used only to fetch weather, never linked to your identity • Preferences stored locally on your device Perfect For • Beach and outdoor activities • Mountain hiking and skiing • Daily sun protection routine • Travel planning across multiple cities • Professional outdoor work • Family sun safety Your skin health matters. Let UV Timer be your trusted companion for sun safety.
Screenshots
Verdict
The clearest difference is ads: UV Timer at none against TrekDay's shown. TrekDay's advantage is iOS requirement (13.0 vs 26.0). On price, update cadence, in-app purchases and device support 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. TrekDay sells 2 in-app purchases, starting at $1.99 per month and UV Timer sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
TrekDay ships an update every 4 days, UV Timer every 3 days. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.
| Parameter | TrekDay | UV Timer |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 4 days | Every 3 days — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad, iPod — better | iPhone, Apple Watch |
| Requires iOS | 13.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 67 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | Mariano Ceccarelli | Shyam Steenhaut |
In-app purchases
TrekDay
- TrekDay Premium Monthly3 Days trial$1.991 Month
- TrekDay Premium Yearly7 Days trial$8.991 Year
UV Timer
- 1 Location Pack$0.99
- 5 Locations Pack$3.99
- 10 Locations Pack$4.99









