Last updated: September 2026
Your game profile — rounds played, accuracy, streaks, lifetime profit and recent-call history — is stored on your device in local storage. You can wipe it at any time from PROFILE → RESET LOCAL DATA. Market Apex does not sell personal data.
Signing in is required to play. You sign in with Google or Apple; Firebase Authentication receives your email address, your name as supplied by that provider, and a user ID. Sign in with Apple lets you hide your email; we work fine with the relay address.
After sign-in you claim a username once — this is your public leaderboard identity. It is the only name of yours other players ever see.
Sign-in, ranked sessions and rewarded aid update your claimed username, in-game account balance, session count, current competition-week id and update time in Google Cloud Firestore. Your username and balance appear on the public leaderboard in the app and on our website. Your email is not part of the public leaderboard.
Go to PROFILE → DELETE ACCOUNT. This permanently erases your leaderboard entry, your claimed username, your Firebase sign-in record, and your local profile. It cannot be undone, and no copy is retained. You may be asked to sign in again first — that is your provider confirming it is really you.
Signing out instead (PROFILE → SIGN OUT) keeps your leaderboard entry and returns you to the sign-in screen.
Market Apex is free and ad-supported via Google AdMob, which may collect device identifiers (IDFA / Android Advertising ID), IP address, app interactions, and diagnostics to serve and measure ads, including personalized ads where consented. On iOS we ask for App Tracking Transparency permission first; in the EU/UK we present a GDPR consent form (Google UMP). Declining either limits ads to non-personalized. Ad content is capped at a Teen rating.
Google's policy: policies.google.com/privacy · Partner data use: policies.google.com/technologies/partner-sites
There is no in-app purchase, subscription or paywall. Every feature is free.
Charts are historical market data bundled into the app at build time (Yahoo Finance). No market request leaves your device while you play.
Market Apex is not directed to children under 13 and we do not knowingly collect their personal information.