Sunny@SG vs Local Sky
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.
Local Sky
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Stay ahead of the weather with our app, designed to provide real-time updates and forecasts based on your exact location. Whether you’re planning your day or preparing for a trip, get accurate, up-to-the-minute weather information tailored just for you. Enjoy features like: - Current Weather: Instant access to the latest conditions at your location - Forecasts: Detailed hourly and daily forecasts to help you plan ahead - Air Condition: Get real-time air quality updates to stay informed about the air you're breathing - Weather Alerts: Stay informed with timely notifications about severe weather Be prepared for whatever the weather brings with our easy-to-use app!
Screenshots
Verdict
The clearest difference is ads: Local Sky at none against Sunny@SG's shown. Local Sky also leads on update cadence (every 4 days vs every 2 months). Sunny@SG's advantage is iOS requirement (8.0 vs 13.0). On price, 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. Neither carries in-app purchases, so what you see is what you pay.
Sunny@SG ships an update every 2 months, Local Sky every 4 days. The most recent releases landed on November 2, 2026 and November 8, 2026 respectively.
| Parameter | Sunny@SG | Local Sky |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months | Every 4 days — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 8.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 42 MB | 23 MB |
| Age rating | 4+ | 4+ |
| Developer | Hosay Studios | Maksim Karatayeu |
In-app purchases
Sunny@SG
No in-app purchases
Local Sky
No in-app purchases









