A little clarity, under the sun.

Before you go, a glance at saifo.

Current UV and basic widgets are free. Six-hour forecasts and the medium forecast widget require saifo Pro.

Current sun protection and UV screen · with demo data
English App · Demo data

Clarity, at a glance

Get a feel for the sunlight.

A sun protection guide for iPhone. Automatic location brings a clear protection summary first, with the current UV index, risk level and practical advice.

See the expression

A familiar face for each level of UV risk.

Read the index

See the current UV index, retrieval time and data freshness.

Know what to do

Simple protection tips you can act on.

01 / The sunlight ahead

What comes next?

Explore the UV forecast for the next six hours with saifo Pro before you head out.

UV forecast screen · with demo data
English App · Demo data
02 / The sunlight you saw

A little book of sunlight.

The highest valid UV you viewed in the app each day becomes a sticker, stored on your iPhone in a monthly album.

Monthly album screen · with demo data
English App · Demo data

A little closer

One glance. More clarity.

Check current UV for free with small Home Screen and Lock Screen widgets. The medium six-hour forecast widget requires saifo Pro.

Home Screen current UV
Home Screen current UVActual system widgets · Demo data
Lock Screen current UV
Lock Screen current UVActual system widgets · Demo data
Low
Moderate
High
Very high
Extreme
04 / Your kind of sunlight

Two ways to keep your sunlight.

Sky Paper, Spectrum Stamps and optional app icons come with saifo Pro. All local records remain free.

Sky Paper · with demo data
English App · Demo data
Spectrum Stamps · with demo data
English App · Demo data
Easy on the eyes

Bright or dark. Always clear.

Light and dark app appearances are free. Widgets follow your system; share cards stay light.

Light appearance · with demo data
English App · Demo data
Dark appearance · with demo data
English App · Demo data

Head out with a little more ease.

Download on the App Store
saifo | UV Index & 6-Hour Forecast for iPhone