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CroAQI

For iPhone · Singapore

Know before you go.

Singapore's weather and air, turned into clear advice for your walk, run or ride.

Pre-order on the App Store

Real app screens with sample conditions. In the app, every reading comes from live NEA data with its source time.

Five readings. One answer.

Advice, not a number puzzle.

Clean air
CroAQI air advice for a walk on an easy day at Marina Bay.
Haze
CroAQI air advice for a walk on a tough day at Marina Bay.

Real app screens with sample conditions.

Made for you

Advice that fits you.

Tell CroAQI how you like to move and what to take extra care with. The advice changes with the activity and the person.

CroAQI asking what you do outdoors most often: walking, running, cycling or outdoor sports.
CroAQI's plan for Mei's walk, with advice for air, heat, UV, rain and wind and for each person in her Circle.

Your Circle

Look after your people.

With a family plan, up to 4 or 8 people share membership. Everyone gets advice for their own age, health and activity.

The Circle in CroAQI on a hazy day, with separate advice for Mei, her husband, her child and her dad.
  • Their phone or yours

    People sign in on their own iPhone, or you manage a profile for them.

  • Their own advice

    Care details stay private to whoever manages them.

  • Places they choose

    Location sharing is always each person's choice.

Membership

Start free. Unlock all of Singapore.

CroAQI Free covers Marina Bay. Membership adds every neighbourhood, 48-hour planning, widgets and your Circle.

3-day free trial for new subscribers

  • No payment due now
  • Cancel anytime in Settings

For you, on your iPhone.

Weekly

US$4.99/ week

Renews weekly.

3-day free trial

Best value

Yearly

US$49.99/ year

US$0.96/week · Save 80% vs weekly

3-day free trial

Each person uses CroAQI on their own phone, with their own advice.

Best value

Yearly · up to 4 people

US$89.99/ year

US$1.73/week

3-day free trial

Yearly · up to 8 people

US$119/ year

US$2.28/week

3-day free trial

How the free trial works

  1. Today

    Get full access to every neighbourhood and 48-hour planning.

  2. In 2 days

    We'll send you a reminder that your trial is ending soon.

  3. In 3 days

    Billing starts unless you cancel anytime before.

Free and membership

FreeMembership
Live air, heat, UV, rain and windIncludedIncluded
Advice for walking, running, cycling and sportIncludedIncluded
NeighbourhoodsMarina BayEvery neighbourhood
Saved places1Up to 50
Looking aheadNext 2 hours48-hour planning
Home Screen widgetsNot includedIncluded
Your Circle: family, each with their own adviceNot includedFamily plans

Prices are shown in US dollars. The App Store shows the price in your local currency, including any tax, before you buy, and that is the price you pay. Payment is charged to your Apple Account.

Weekly and yearly plans renew automatically until you cancel. The 3-day free trial is for new subscribers, once per Apple Account. Unless you cancel at least 24 hours before the end of the trial or the current period, the plan's price is charged to your Apple Account for the next period. Cancel anytime in Settings › your name › Subscriptions.

Family plans give each person their own access through your Circle; they don't use Apple Family Sharing. Full details are in our terms of use.

FAQ

Good to know.

CroAQI is an iPhone app for people in Singapore who walk, run, cycle or play sport outdoors. It reads the latest official weather and air-quality data and turns it into simple advice: whether now is a good time, and what to bring.

Live readings come from Singapore's National Environment Agency (NEA) through data.gov.sg. CroAQI shows when each reading was taken, and it never presents old or missing readings as current.

Live air, heat, UV, rain and wind readings for Marina Bay, with advice for your walk, run, ride or game, the 3D Marina Bay scene and a look at the next 2 hours. No account and no payment needed.

Every Singapore neighbourhood, up to 50 saved places, 48-hour planning and Home Screen widgets. For one person: US$4.99 a week or US$49.99 a year. Family plans add your Circle: US$89.99 a year for up to 4 people or US$119 for up to 8. Every plan renews automatically and starts with a 3-day free trial for new subscribers. Prices are in US dollars; the App Store shows your local price before you buy.

Weekly and yearly plans start with a 3-day free trial for new subscribers, once per Apple Account. No payment is due when you start. If you allow notifications, the app reminds you the day before the trial ends. Cancel at least 24 hours before the end and you pay nothing; otherwise your plan starts and the price is charged to your Apple Account.

A family plan covers up to 4 or 8 people, including you. You invite people to your Circle, and each person signs in on their own phone and gets advice for their own profile and activities. Each person chooses which of their places the Circle can see. You manage the membership. Family plans don't use Apple Family Sharing.

Not yet. CroAQI is built around Singapore's official data and Singapore's neighbourhoods.

No. You can use CroAQI Free without one. You sign in with your email and a one-time code to start a membership or join a Circle, so it follows you across your devices.

No. CroAQI gives general weather and air-quality guidance. If you have a health condition, follow your doctor's advice and official NEA and MOH advisories. In an emergency, call 995.

Open Settings on your iPhone, tap your name, then Subscriptions, and choose CroAQI. In the app, Membership → Manage or cancel subscription takes you to the same place. Cancel at least 24 hours before your trial ends or your plan renews to avoid the next charge; you keep membership until the end of the period. Deleting your CroAQI account doesn't cancel an App Store subscription.

More answers on the support page
Cro, the CroAQI frog, smiling.

Your next good day outside starts here.

CroAQI is coming soon to iPhone. Starting in Singapore.

Pre-order on the App Store