UV Forecast Downloads & RevenueUV Forecast - Check UV Index · App Store
UV予報 - UV 紫外線予報を簡単にチェック
Not in any tracked top chart right now.
Updated 11 Nov 2026 · rankings refresh through the day
DeveloperHodai Azeyanagi
CategoryWeather
PriceFree
Released
Rating★ 4.7 (1.8k)
Version2.0.2
Age rating4+
First seen by us
25 Sep 2026
25 Sep 2026Installs (est.)100k+ worldwide
UV Forecast - Check UV Index update history & changes
Last change · 4 events since 3 Sep 2020Full timeline ↓Full timeline · 3 events in the last 12 months
- 📈UV Forecast - Check UV Index entered the top 100Top Grossing · Weather · JP
- 🆕UV Forecast - Check UV Index first spotted by AppInsider#72 in Top Free · Weather · Japan
- 🆕UV Forecast - Check UV Index released on the App Store
Collected from the stores by AppInsider since we first spotted the app. Dates are when we saw each change.
Rating
4.7 ★
1.8k ratings
Measured
UV Forecast - Check UV Index on the App Store
App details
App ID
1530007125
Publisher
Hodai Azeyanagi
On the store since
Sep 2020
6 years on the store
Minimum OS
iOS 15.0+
iPhone 6s and later
Devices
iPhone · iPad
Content rating
4+
Languages
3
EN JA KO
Size
46 MB
Also listed in
Health & Fitness
UV Forecast - Check UV Index downloads
Worldwide, per day, and installs to date. The band is open; the exact number is free with an account.
How this is calculated
Apple publishes no download counts. App Store downloads come from chart positions and daily rating growth per country, calibrated on Google Play install counts; lifetime installs from ratings worldwide × installs per rating. Confidence is the chance the real number is within half to double ours.
Active users
All platforms, worldwide. Free with an account.
Stickiness (DAU / MAU)
how many monthly users open it on a given day
How this is calculated
Monthly users come from lifetime installs across every store, fitted on monthly active user figures companies publish; daily users = monthly × the typical daily/monthly ratio for the category. Confidence is the chance the real number is within half to double ours.
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| Not charting right now. | ||
Ratings
App Store, worldwide.
Rating
4.7 ★
1.8k ratings
Measured
Ratings
1.8k
Measured
Review momentum
ⓘ How we measure thisNew ratings a week
under 1
4-week average
Lifetime rating
4.7★
recent stars not readable yet: new ratings are a tiny share of the total
Review momentum
56/100
faster than 60% of Weather apps
Review momentum (0-100) blends how fast the app collects ratings compared with other apps in its category (60%), whether that pace is speeding up (25%) and what recent raters give it (15%; recent stars well below lifetime pull it down). Ratings counts are read daily. A jump usually means a launch, a feature, ads or a new review prompt.
About UV Forecast - Check UV Index
UV index forecast app.
Check UV index before going out and protect yourself from tanning.
This app allows you to easily check the UV index every hour for today and tomorrow.
■ Features
- You can easily see the UV index at your current location in anywhere in the world.
- Depending on your skin color type, you can see how long it takes to get sunburned.
- Give you hourly UV Index forecast for today and tomorrow.
- The weather forecast is also displayed.
- Protect yourself from sunbeams and UV rays with our app.
■ Recent updates
- Added UV forecast for tomorrow.
- Modified features for multilingual users.
- Fixed minor bugs.
■ Future update
・Recommended products to help prevent UV rays
・Weekly UV forecast
・Widget function
・Advertisement removal
And so on!
If you have any requests, bug reports, etc., you can feedback from out app.
Please go to Settings tab > Others > Inquiry/Bug report.
■Terms of Use
Please review the Terms of Use before using the app.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
By downloading this app, you agree to the Terms of Use.
Check UV index before going out and protect yourself from tanning.
This app allows you to easily check the UV index every hour for today and tomorrow.
■ Features
- You can easily see the UV index at your current location in anywhere in the world.
- Depending on your skin color type, you can see how long it takes to get sunburned.
- Give you hourly UV Index forecast for today and tomorrow.
- The weather forecast is also displayed.
- Protect yourself from sunbeams and UV rays with our app.
■ Recent updates
- Added UV forecast for tomorrow.
- Modified features for multilingual users.
- Fixed minor bugs.
■ Future update
・Recommended products to help prevent UV rays
・Weekly UV forecast
・Widget function
・Advertisement removal
And so on!
If you have any requests, bug reports, etc., you can feedback from out app.
Please go to Settings tab > Others > Inquiry/Bug report.
■Terms of Use
Please review the Terms of Use before using the app.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
By downloading this app, you agree to the Terms of Use.
Latest updates
2.0.2
・Fix minor bugs