Privacy Policy

Crystal Spire: Idle Defense · Last updated: 11 October 2026

This policy explains what information Crystal Spire: Idle Defense ("the game") collects, why, and what choices you have. The game is published by TechBene ("we").

Summary

You can play without creating an account or giving us your name, email address or phone number.
The game creates an anonymous guest account so your progress can be saved online and your scores can appear on leaderboards.
The game shows optional rewarded ads through Google AdMob, which may use your device's advertising identifier.
We do not sell your personal information.

Information we collect

Information	Why we collect it	Who processes it
Anonymous account ID (a random identifier created on first launch)	To keep your saved game and leaderboard scores tied to you	Supabase (our backend host)
Game progress: gold, upgrades, talents, best wave, mission progress, settings	Cloud save, so progress survives between sessions	Supabase
Player name you choose, and tournament scores	Shown to other players on the weekly tournament leaderboard	Supabase
Purchase records (product, transaction ID, store)	To deliver and restore what you bought	Apple App Store or Google Play, and Supabase
Advertising identifier, IP address, device and app information, ad interactions	To show rewarded ads, limit how often they repeat, measure them and prevent fraud	Google AdMob

We do not collect your precise location, contacts, photos, microphone or camera data. Payments are handled entirely by the App Store or Google Play; we never see your card details.

Advertising

Ads appear only when you choose to watch one for a reward. They are served by Google AdMob. Depending on your region and your choices, Google may use your advertising identifier to show personalized ads. For details see how Google uses information from apps that use its services.

European Economic Area, United Kingdom and Switzerland: you are asked for consent before any ad is requested. You can change your choice at any time in the game under Settings → Privacy options.
iOS: the game asks for permission to track through Apple's App Tracking Transparency prompt. If you decline, ads are not personalized using your advertising identifier.
Android: you can reset or delete your advertising ID in your device's Google settings.

Player names

Your player name is visible to other players. Please do not use your real name or other personal information. Names that are offensive may be rejected or reset.

How long we keep information

Saved games and scores are kept while your guest account exists. Because the account is anonymous and stored on your device, uninstalling the game removes your access to it. You can ask us to delete the account and everything linked to it at any time (see below).

Your choices and rights

You can ask us to give you a copy of, correct or delete the information linked to your account. Send a request to the address below and include the player name shown in Settings, so we can find your account. Depending on where you live you may have additional rights under laws such as the GDPR or the CCPA, including the right to object to processing and to complain to your local data protection authority.

Children

The game is not directed at children under 13, and we do not knowingly collect personal information from them. If you believe a child has provided personal information, contact us and we will delete it.

Where information is processed

Our backend is hosted in the United States. Google and the app stores process information in the countries where they operate.

Changes to this policy

If we change this policy we will update the date above, and for significant changes we will tell you in the game.

Contact

TechBene · ddaying.dev@gmail.com