saifo – UV & Sun Care
Current UV & 6-hour forecasts
Only for iPhone
Free · In‑App Purchases
iPhone
Check the sun before you step out. See current UV and sun-care advice, collect readings you viewed, and get six-hour forecasts and appearance collections with saifo Pro.
Check the sun before you step out.
saifo is an iPhone UV decision aid. It finds your location automatically and shows the current UV index, risk level and practical sun-care advice.
NOW: CURRENT UV, FREE
See five risk levels, protection advice, retrieval time and data freshness. Missing data is never presented as a real reading, and cached or expired states are clearly identified. Share a fresh current reading using the standard card, with the city and district visible in the preview. The small Home Screen widget and rectangular Lock Screen widget show current UV for free. iOS controls widget refresh timing.
FORECAST: THE NEXT SIX HOURS WITH SAIFO PRO
Compare hourly UV trends, select a time and read a forecast summary. Current readings and forecasts load independently. Missing hours are not filled with zero, and expired forecasts stop displaying. Forecasts do not promise a safe time outdoors.
ALBUM: ALL LOCAL RECORDS, FREE
Collect monthly stickers for the highest valid current UV you actually viewed on the Now tab each local day. This is not the area's daily peak or a measure of your sun exposure. Forecasts, stale readings and background-only updates never create records. The album stays on your device without coordinates, deletion controls or cross-device sync.
SAIFO PRO
An annual subscription and a one-time lifetime purchase provide the same features: the in-app six-hour forecast, a medium forecast widget, Sky Paper and Spectrum Stamps album and share-card appearances, and two optional app icons. Current UV, advice, all local records, basic current-UV widgets and standard sharing remain free.
The purchase sheet opens when you choose Forecast or apply a locked appearance. There is no launch paywall or forecast demo. Purchase and restore access from Settings → saifo Pro. The purchase sheet displays local prices, subscription duration and renewal terms. The annual subscription renews automatically. Lifetime access has no renewal charge while saifo operates. Buying lifetime access does not cancel an existing annual subscription; use Manage Subscriptions to manage its renewal. Apple handles payments and purchase restoration.
SETTINGS AND DATA
Choose from ten app languages and system, light or dark appearance. Widgets follow system appearance; shared images stay light. Location is automatic, with no city search, accounts, plans or reminders. The app does not use background location, ads, analytics or tracking SDKs. Widget location access is controlled separately by the system and your permissions. Weather data is provided by Apple Weather. The Apple Weather mark and source link are in Settings → Data Sources; retrieval time, freshness and WHO guidance links remain beside readings.
Privacy policy: https://saifo.toimagen.com/privacy
Support: https://saifo.toimagen.com/support
Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The Now screen puts sun protection guidance first, with the UV index and risk level just below. A new widget guide in Settings shows how to add current UV to your Home Screen or Lock Screen.
The developer, 豪 张, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
- Location
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- 豪 张
- Size
- 32.1 MB
- Category
- Weather
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later.
- iPhone
- Languages
English and 9 more
- English, French, German, Italian, Japanese, Korean, Portuguese, Simplified Chinese, Spanish, Traditional Chinese
- Age Rating
9+
- 9+
- Contains
Health or Wellness Topics
- In-App Purchases
Yes
- 晒否 Pro 终身购买 $12.99
- 晒否 Pro 年订阅 $3.99
- Copyright
- © 2026 Hao Zhang
