Sunny@SG vs Sweat Score
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sunny@SG
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Ultraviolet (UV) radiation is part of the electromagnetic spectrum emitted by the sun. Some ultraviolet (UV) exposure is important for health functions such as Vitamin D production in the body and treating diseases like jaundice in babies or psoriasis and rickets in adults. However, exposure to strong UV radiation is harmful. Excessive exposure may cause the following problems: - Skin cancer - Cataracts - Suppression of the immune system - Premature ageing of the skin Sunny@SG is useful utility that allows you to check the hourly UV index (UVI) on the go. Features include: - Access to hourly UV index reading from Meteorological Service Singapore (MSS) on the go. - Notification when UV index reaches high level. Notification can be turned on and off as per your preference. - Share the current UV index with your friends and family and keep them informed and safe! All feedback and suggestions are welcome. You can reach us via email (support@hosaystudios.com) or the contact feature within the app. Join our facebook fan page. http://www.facebook.com/hosaystudios Note: This app is developed without any involvement of MSS. Any inaccuracies found are not the responsibility of and should not be attributed to MSS.
Sweat Score
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Sweat Score turns complex weather into a simple, glanceable 0–10 scale that shows how hot it will feel—hour by hour—so you can pick the best time to get outside. Whether you’re running, walking, commuting, or planning a workout, Sweat Score blends temperature, humidity, sun angle, wind, cloud cover, and rain chance into one clear number. Swipe through the next 24 hours, see the story behind the score, and choose the most comfortable window for your plans. Why Sweat Score? Traditional weather apps tell you temperature. Sweat Score tells you how it will actually feel for your body, especially during activity. It factors in: • Temperature and humidity (humidex-style heat stress) • Sun altitude and cloud cover (direct sun vs. shade) • Wind speed (cooling effect, reduced when humidity is high) • Rain chance (visualized at a glance) Key Features • Hourly 0–10 Sweat Score: A single rating that reflects real‑world comfort and heat strain. • 24‑Hour Forecast: Swipe across the day to find your ideal time to get outside. • Dynamic Background: Color shifts with the Sweat Score, with a subtle blue band indicating rain chance. • Quick Metric Tooltips: Tap icons to see what each number means (temperature, humidity, rain, cloud cover, wind, sun). • Location‑Aware: Automatically detects your location and formats units to match your region (°C/°F, km/h/mph). • Clear Labels: “Low,” “Medium,” “High,” and “Extreme” make the score easy to interpret at a glance. • Smart Refresh: Returns to the current hour and updates data when you come back after a while. How It Works Sweat Score uses Apple’s WeatherKit for high‑quality forecasts and sun position data to estimate heat load. The algorithm: • Increases the score with higher temperature, humidity, and stronger sun. • Reduces the score with wind cooling (less effective in high humidity). • Shapes results into a 0–10 scale so you can compare hours quickly. This isn’t just a “feels like” temperature—it’s a practical, activity‑minded indicator for planning. When to Use It • Scheduling runs, rides, or walks for the least sweaty time of day • Avoiding mid‑day heat and direct sun exposure • Picking comfortable windows for outdoor chores or commutes • Deciding between morning, afternoon, or evening outings Privacy & Transparency • Your location is used on device to fetch a local forecast. • No unnecessary data collection. Your data stays yours. Plan smarter. Sweat less.
Screenshots
Verdict
The clearest difference is ads: Sweat Score at none against Sunny@SG's shown. Sunny@SG's advantage is device support (3 vs 1) and iOS requirement (8.0 vs 26.0). On price, update cadence 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. Neither carries in-app purchases, so what you see is what you pay.
Sunny@SG ships an update every 2 months, Sweat Score every 3 months. The most recent releases landed on November 2, 2026 and October 30, 2026 respectively.
| Parameter | Sunny@SG | Sweat Score |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months — better | Every 3 months |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 8.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 42 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Hosay Studios | Mock Gravity |
In-app purchases
Sunny@SG
No in-app purchases
Sweat Score
No in-app purchases









