WikiRacer

Privacy policy

Last updated: October 15, 2026

Overview

WikiRacer is a Wikipedia racing game made by Aadhrik Kuila (“we”), played in the WikiRacer app for iPhone and at wikiracer.app. This policy explains what data each handles, who receives it, and the choices you have. WikiRacer doesn't require an account, and we never ask for your name, email address, or contacts.

The website

On wikiracer.app:

  • Articles load straight from Wikipedia: your browser requests them from the Wikimedia Foundation, which receives the titles of the articles you open and standard request information, such as your IP address.
  • Your result in each day's daily race is kept in your browser's local storage, so the page can show it when you come back. Nothing else is stored in your browser, and the site sets no cookies.
  • Analytics events go to PostHog: pages viewed; races started, finished, or given up (including the start and target articles, mode, pages visited, time taken, and whether you won); and sharing. They include browser and device information, such as browser, operating system, and screen size, and PostHog uses your IP address to estimate your approximate location, such as country and city. The site doesn't create an identifier that lasts beyond your visit, and it doesn't record your screen.
  • The site is hosted by Vercel, which receives standard request information, such as your IP address, to serve and protect it.
  • There are no ads on the website.

See PostHog's privacy policy and Vercel's privacy policy.

Data stored on your device (app)

The app keeps the following on your device:

  • Game history (articles visited, scores, times)
  • Game preferences (mode, time limit, tool settings)
  • Streaks and statistics
  • Daily challenge progress
  • Notification preferences

We don't upload this data as a whole, but some details of individual games are sent as anonymous analytics events, described below. Reminder notifications are scheduled on your device.

Analytics (PostHog)

We use PostHog to understand how WikiRacer is played and to find problems. The app sends PostHog:

  • A random identifier created by the app, which isn't linked to your name, email address, or Apple Account
  • App events, such as opening the app; starting, finishing, or quitting a game (including the start and target articles, mode, time limit, pages visited, time taken, and whether you won); tools and features used; sharing and challenges; and in-app purchases (plan and price)
  • Device and app information, such as device model, iOS version, app version, language, and time zone
  • Your IP address, which PostHog uses to estimate your approximate location, such as country and city

We don't record your screen. PostHog stores analytics data in the United States. See PostHog's privacy policy.

Advertising (Google AdMob)

Free users of the app see occasional full-screen ads from Google AdMob. The Google Mobile Ads SDK is included in the app and may collect:

  • Device identifiers, including the advertising identifier (IDFA) if you allow tracking
  • Your IP address and approximate location
  • Information about the ads you see and how you interact with them
  • Diagnostic and performance information

Google uses this data to show, measure, and improve ads. If you allow tracking when iOS asks, Google may use your advertising identifier to show personalized ads across apps and websites. If you don't, Google can't use it. You can change this anytime in Settings > Privacy & Security > Tracking. WikiRacer Pro removes ads. See Google's privacy policy.

Purchases (Apple and RevenueCat)

WikiRacer Pro is sold through Apple's App Store. Apple handles payment, and we never see your payment details. RevenueCat receives your purchase and subscription history, along with a random identifier it creates, so it can verify purchases and unlock Pro. See RevenueCat's privacy policy.

Wikipedia and daily challenges

Articles are loaded from Wikipedia through the Wikimedia Foundation's public API, which receives the titles of the articles you open. The app downloads the daily challenge list from GitHub (the website fetches it on its server). These services receive standard request information, such as your IP address, and their own privacy policies apply: Wikimedia and GitHub.

Challenge codes and sharing

Challenge codes and links, and shared results, contain only game details, such as article titles, mode, and your result. They're shared only when you choose to share them.

How we use data

We use this data to run the game, process purchases, show ads to free users of the app, understand how WikiRacer is used, and fix bugs. We don't sell your data for money. If you allow tracking in the app, Google may use your advertising identifier for personalized advertising, which some privacy laws treat as “sharing” or a “sale”.

Your choices and deletion

  • Clear your game history anytime in the app's Settings > Clear Game History.
  • Deleting the app removes all data stored on your device, including the random analytics identifier, so later activity can't be connected to earlier analytics data.
  • Clear this site's data in your browser's settings to remove your stored daily results.
  • Control ad tracking in Settings > Privacy & Security > Tracking.

Because analytics and purchase data aren't linked to your identity, we usually can't single out your records. If you have a request, contact us and we'll help where we can.

Children's privacy

WikiRacer doesn't knowingly collect personal information from children under 13. If you believe a child has provided personal information, contact us and we'll delete it.

Changes to this policy

We may update this policy from time to time. When we do, we'll post the new version and change the date above.

Contact

If you have questions about this privacy policy, contact us at aadhrik@gmail.com.