← Chalk & Sum

Privacy Policy

Last updated: 23 October 2026

Chalk & Sum is a number puzzle game made by Kartik Kaushik. This policy explains what data the game uses and why. The short version: the game has no accounts and never asks for your name or email. The only third party that receives data is Google, to show ads.

What the game stores

• Your progress (solved levels, answers found, doodles, hints) is stored on your device.
• iCloud sync, if you leave it on, copies that progress to your own iCloud account through Apple, so it follows you to your other devices. We can't see it.
• Game Center, if you're signed in, records your achievements with Apple. We can't see your Game Center account details.

None of this is sent to us. We don't run any servers.

Advertising (Google AdMob)

The free version shows ads through Google AdMob. To serve and measure ads, and to prevent fraud, Google's SDK may collect:

• device identifiers, such as an advertising identifier or an app-specific identifier;
• your IP address, which can reveal your approximate location;
• information about the ads you see and tap;
• diagnostic data, such as crash logs and performance.

The game does not ask for permission to track you across other companies' apps and websites (App Tracking Transparency), so Apple's advertising identifier is not shared. In the European Economic Area, the UK and Switzerland, Google's consent form asks for your choices before any ads are requested, and you can change them later.

How Google uses this data: policies.google.com/technologies/partner-sites.

This website

This website counts visits with GoatCounter, a privacy-friendly analytics service. It uses no cookies and doesn't track you across sites. It records the page you visited, the site that linked you here, your browser, screen size and country, but not your IP address or any personal identifier.

Purchases

"Remove Ads" is bought through the App Store. Apple handles the payment; we never see your payment details.

Children

The game is suitable for all ages, but it is not directed at children under 13, and we don't knowingly collect personal information from them.

Your choices

• Turn off iCloud sync in the game's Settings.
• Reset all progress in the game's Settings.
• Buy "Remove Ads" to stop ads between levels.
• Deleting the app removes everything stored on your device.

Changes

If this policy changes, the new version will be posted on this page with a new date.

Contact

Questions? Email kartik14704@gmail.com.