WalaoHaze

Terms and privacy

WalaoHaze is a free side project. Here's what it collects, why it needs it, and the few rules for using it.

Last updated 17 October 2026

The short version

Your exact location stays on your phoneOnly the area, like East, and for a haze report the town, like Tampines, is sent.

Photos are cleaned, then deleted after 3 daysAll hidden data, including GPS, is removed before they go up. Only each day's top 3 is kept, so we can all look back.

No accounts, so I never know your nameYou can use everything without signing up.

No ads, and I never sell your dataThe site only collects what it needs to work.

It's information, not medical adviceAlways follow NEA and MOH.

Part 1

Privacy

I'm Aaron, a UX designer in Singapore. I built and run WalaoHaze on my own.

Your location

Your exact location never leaves your phone.

When you share a photo or say how the haze is, the site can ask for your location to work out which area you're in. That check happens on your phone, and your coordinates are never sent or saved.

For a photo, only the area name, like North or Central, is sent. For a haze report (Clear, Hazy or Very hazy), the town you're in, like Tampines, is sent too, so others can see where it's hazy. If you say no to location, you just pick your area yourself, and no town is sent.

Haze reports show for everyone without your name, and are deleted after 3 days. To stop one person flooding them, the site keeps a scrambled code made from your IP address with each report, deleted with it.

Photos you share

They're cleaned, checked, shown for 3 days, then deleted for good, unless they make the day's top 3.

  • Your phone shrinks the photo. Then my server saves a fresh copy, which removes all hidden data, including GPS, the time it was taken and your phone model.
  • Google's Gemini AI checks each photo before it goes up, to make sure it's safe and shows the sky or the city.
  • Once approved, anyone can see it, with its area, the hour it was posted and the PSI then. Your name is never shown, because the site doesn't have it.
  • Every night at 8pm, AI picks the day's top 3 photos (fewer on a quiet day). Those are kept, with their area, time and PSI, so anyone can watch that day again in Look back. This applies to photos shared from 17 October 2026. They stay until WalaoHaze closes. If one is yours and you want it gone, message me.
  • To count posts over time, the site keeps a note for a year that an upload happened, with its area, the time and a scrambled code that changes every day. The note never includes the photo.

Please don't share photos where faces, car plates or home addresses are clear. Once a photo is public, someone could screenshot it.

Your IP address

Only a scrambled copy is kept, and only for 24 hours.

To stop spam, each connection can share up to 6 photos an hour. To count that, the site keeps a scrambled version of your IP address (a salted hash). It can't be turned back into your real IP.

Feedback

Kept so I can make the site better.

If you rate WalaoHaze or leave a comment, I keep your score, your comment, your browser type and the same scrambled IP. Please don't put personal details in your comment.

Visitor numbers

Visits are counted without cookies, and never tied to who you are.

Vercel Web Analytics shows me which pages were opened, and which country, device type and website visits came from. It doesn't follow you to other sites.

The site also notes what you do during a visit and for how long, like swiping to an earlier hour, opening the advice or sharing a photo. That shows me where the site is confusing. With it go your country, device type, browser and the website or app you came from, plus a scrambled code made from your IP address, browser and the date. The code changes every day, so visits on different days can't be linked.

None of it includes your name, your exact location or what you type. It's deleted after 90 days.

Saved on your device

A few settings stay in your browser. They're never sent to me.

  • The area you last picked
  • Whether you turned location off
  • Whether you've already seen the tips
  • When you last visited, so the site can show what's new
  • A random number for your current visit, so its steps stay together. It's gone when you close the tab.

Of these, only the visit number is ever sent to me. Clearing your browser data removes them all. WalaoHaze doesn't use cookies.

Services the site uses

Each one only gets what it needs to do its job.

  • VercelHosts the website and counts visits
  • SupabaseStores photos, feedback, visit steps and the scrambled IPs, on servers in Singapore
  • Google GeminiChecks each photo and X post before it's shown
  • Google FontsLoads the fonts, so Google sees your IP address when the page loads
  • NEA and LTAAir quality readings and traffic camera images, through data.gov.sg
  • X (Twitter)Public haze posts, shown with the poster's name and a link back

Each service has its own privacy policy.

Posts from X and traffic cameras

They're credited to their owners and cleared after 3 days.

Some photos in the feed come from public posts on X or from LTA's traffic cameras. X posts come off WalaoHaze if they're deleted on X.

If a post of yours is shown and you want it taken down, message me.

Your rights

You can ask what I hold about you, and ask me to fix or delete it.

That's your right under Singapore's Personal Data Protection Act (PDPA). Since there are no accounts, tell me roughly when you posted and which area, and I'll find it.

Part 2

Terms of use

By using WalaoHaze, you agree to these terms. If you don't agree, please don't use the site.

It's information, not medical advice

Don't make health decisions from WalaoHaze alone.

Readings come from NEA, and the advice is summarised from NEA and MOH. I do my best to keep it right, but readings can be late, missing or wrong, and a photo only shows one moment in one spot.

Check haze.gov.sg for the official numbers, and see a doctor if you feel unwell.

Sharing a photo

You still own it. You just let me show it until it's deleted, or in Look back if it makes the day's top 3.

  • It must be a photo you took yourself.
  • It must not show anything illegal, offensive or private, or focus on people.
  • I can remove any photo at any time, without giving a reason.

Play fair

Don't try to break the site or flood it.

That means getting around the photo check or the upload limit, sending floods of requests, or copying the content in bulk. I can block anyone who does.

No guarantees

It's free, run by one person, and provided as it is.

It might go down or change without notice. As far as the law allows, I'm not responsible for any loss or harm from using it or relying on it.

Changes

The date at the top shows when this page last changed.

I may update this page as the site changes. These terms follow the laws of Singapore.

Questions, or want something taken down?

Message me on LinkedIn and I'll get back to you.

Message me on LinkedIn

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