Privacy policy

Last updated November 2, 2026

This policy covers every game and app Coderize LLC ("Coderize", "we", "us") publishes on Google Play, their web versions, and this website, apps.coderize.dev. Today that means Railyard Out, Sandy Streets and Train Track Puzzle. When we add an app, it's covered here too, and anything it does differently is listed under "App by app" below.

The short version

Coderize doesn't collect your personal information. You don't need an account to play.
Our games have no ads, and we add no tracking or analytics of our own. We never sell or share anything about you.
If you use Google Play Games in one of our games, Google collects some information to run that service. More under "App by app".
This website counts visits with Google Analytics, which uses cookies. More below.
Your progress is saved on your device. Some games can also keep a copy in your own Google account.

What our apps keep, and where

Your progress (levels, stars, coins) and your settings (such as sound on or off) are saved on your device. They never reach us. On the web versions they're kept in your browser's storage for that site.

Some Android games can also keep your progress in a Google Play Games saved game, so it follows your Google account to a new phone. Google stores that saved game in your account, only the game that made it can read it, and we never see it.

App by app

Railyard Out

Progress and settings on your device. Without Google Play Games that's all, and it sends nothing over the internet while you play.
On Android, in the version of the game that adds it, and if you're signed in to Google Play Games: a Play Games saved game of your progress (see above). Google handles your Play Games profile (player ID, gamer name and avatar) and collects some diagnostic and usage information to run the service, underGoogle's privacy policy. We don't receive your name, email address or contacts. To remove it, see Deleting your data.
Vibration on Android, for taps. It uses no data.

Sandy Streets

Progress and settings on your device.
On Android, if you're signed in to Google Play Games, a Play Games saved game of your progress (see above). Google handles your Play Games profile (player ID, gamer name and avatar) and collects some diagnostic and usage information to run the service, under Google's privacy policy. We don't receive your name, email address or contacts.
To clear your progress on your device, open the level menu and tap "Start over". If you delete the game's data in Play Games, Google deletes the saved game, your gamer profile data for the game and its diagnostic data. SeeDeleting your data.
Your photos: "Your photo" turns a photo you pick into a level. The photo is read and turned into sand on your device only. It's never uploaded, stored by us or shared with anyone.
Vibration on Android, for taps. It uses no data.

Train Track Puzzle

Progress and settings on your device. Without Google Play Games that's all, and it sends nothing over the internet while you play.
On Android, in the version of the game that adds it, and if you're signed in to Google Play Games: a Play Games saved game of your progress (see above). Google handles your Play Games profile (player ID, gamer name and avatar) and collects some diagnostic and usage information to run the service, underGoogle's privacy policy. We don't receive your name, email address or contacts. To remove it, see Deleting your data.

Google Play

When you download one of our apps, Google Play handles it under Google's privacy policy. Google gives us combined install numbers and, from people who allow it on their phones, crash reports (device model, Android version, where the app failed). None of it tells us who you are.

This website

apps.coderize.dev uses Google Analytics, loaded through Google Tag Manager, to count visits and see which pages and links people use, such as how many tap through to Google Play. It sets cookies in your browser and sends Google details of your visit: the pages you view, the links you click, roughly where you are (city or region, worked out from your IP address), and your device, browser and screen size. We see this only as combined statistics, never as a profile of you. We don't use it for advertising, and Google Analytics stores no full IP addresses. Google handles the data under Google's privacy policy; see also how Google uses data from sites that use its services.

To stop it, block cookies for this site in your browser, use a content blocker, or install the Google Analytics opt-out add-on. The site works the same either way. The analytics are on this website only: our games don't include them.

The site is served through Amazon Web Services, whose systems may record standard technical details of each request (such as IP address, browser type and the page asked for) to deliver the site and keep it secure. We don't use those records to identify you.

When you contact us

If you use our contact form, it sends us your name, email address, the game and topic you pick, your phone model if you give it, and your message. It goes to us by email through our form service, which runs on Amazon Web Services, and you get an email back confirming we have it. If you write to apps@coderize.dev instead, we get your email address and whatever you tell us.

Either way, we use it only to answer you and to fix what you report. We don't add you to any mailing list, we don't share it, and we delete it on request.

Children

Our games are made for a general audience and aren't directed at children under 13. They don't collect personal information from anyone, children included, and have no chat, ads or purchases. If you think a child has sent us personal information, for example by email, tell us and we'll delete it.

Deleting your data

We keep no account or profile about you, so there's nothing on our side to delete. To clear what's on your side:

Progress on your device: use the game's start-over option where it has one, or uninstall the app. On the web, clear the site's data in your browser.
A Google Play Games saved game: open the Play Games app, go to your profile and delete the game's data, or manage it at myaccount.google.com.

Wherever you live, you can ask us what we hold about you or ask us to delete it by emailing apps@coderize.dev. Apart from emails you've sent us, the answer is nothing.

Security

Anything our apps exchange with Google, and every visit to this website, goes over an encrypted connection.

Changes

If this policy changes, we'll update this page and the date at the top. If an app ever starts collecting something new, we'll say so here before the update that does it is released.

Contact

Coderize LLC, Michigan, USA. Questions about privacy: apps@coderize.dev.