Privacy Policy — CrackIn30

1 Overview

CrackIn30 ("we", "us", or "our") is a math calculation practice application for Android developed by [EPICMIND LABS]. This Privacy Policy describes how CrackIn30 collects, uses, and protects your information when you use our application.

By downloading and using CrackIn30, you agree to the practices described in this policy. If you do not agree, please uninstall the application.

2 Information We Collect

We collect the following categories of information:

We do NOT collect:

• Your name, email address, or phone number
• Location or GPS data
• Camera or microphone data
• Contacts or calendar data
• Any biometric data

3 How We Use Your Information

The information we collect is used exclusively for the following purposes:

• To provide app functionality — storing your test history, scores, streaks, and preferences locally on your device.
• To enforce the trial system — using your Advertising ID to track whether you have used a free trial for each test type, preventing abuse.
• To serve advertisements — using your Advertising ID to display relevant ads through Google AdMob. This helps keep the app free for non-premium users.
• To manage premium subscriptions — verifying your purchase entitlement via RevenueCat to unlock premium test content.
• To improve app stability — anonymised crash and performance data may be collected by third-party SDKs.

We do not sell your data. We do not use your data for any purpose other than what is described above.

4 Data Storage

On-Device Storage: Your test history, preferences, daily streak, and premium status are stored locally on your device using IndexedDB and localStorage. This data never leaves your device except as described in this policy.

Cloud Storage (Firebase): Your Advertising ID and trial usage records are stored in Google Firebase. This data is stored under an anonymous identifier.

RevenueCat Servers: Your purchase history and entitlement status are processed and stored by RevenueCat in accordance with their privacy policy.

Data Retention: Trial usage data in Firebase is retained indefinitely to prevent trial abuse. Local on-device data can be cleared by using the "Reset Data" feature in the app's Settings, or by uninstalling the app.

5 Third-Party Services

CrackIn30 integrates the following third-party services. Each has its own privacy policy:

6 Advertising

CrackIn30 is free to use and displays ads to non-premium users via Google AdMob. Ads are shown on the home screen, test selection screen, results screen, and history screen. No ads are shown during active tests.

AdMob may use your Advertising ID to show you personalised advertisements based on your interests. You can opt out of personalised advertising at any time:

• Go to your Android device Settings
• Tap Privacy (or Google)
• Tap Ads
• Enable "Opt out of Ads Personalisation"

Premium users who subscribe to CrackIn30 Premium are shown no advertisements whatsoever.

7 Children's Privacy

CrackIn30 is designed for users aged 13 and above. The app is targeted at students preparing for competitive examinations and is not directed at children under the age of 13.

We do not knowingly collect personal information from children under 13. If you are a parent or guardian and believe your child has provided us with personal information, please contact us at the email address below and we will take steps to delete such information.

In compliance with the Children's Online Privacy Protection Act (COPPA) and Google Play's Families Policy, this app is not classified as a children's app and is not listed in the Family section of Google Play.

8 Your Rights & Choices

You have the following rights and choices regarding your data:

• Reset Local Data: Open the app → Settings → "Reset Data" to permanently delete all locally stored test history, scores, streaks, and preferences from your device.
• Opt Out of Personalised Ads: Use the Android Advertising Settings described in the Advertising section above.
• Reset Advertising ID: In Android Settings → Privacy → Ads → Reset Advertising ID to generate a new anonymous identifier.
• Delete Trial Data: Contact us at the email below to request deletion of your trial usage records from Firebase. We will process your request within 30 days.
• Cancel Subscription: Premium subscriptions can be cancelled at any time through Google Play → Subscriptions.

9 Data Security

We take reasonable measures to protect the information collected by CrackIn30:

• All communications with Firebase and RevenueCat are encrypted using HTTPS/TLS.
• No sensitive personal data (passwords, financial details) is ever handled directly by CrackIn30 — billing is fully managed by Google Play and RevenueCat.

However, no method of electronic transmission or storage is 100% secure. We cannot guarantee absolute security of any data transmitted to or stored by third-party services.

10 Changes to This Policy

We may update this Privacy Policy from time to time. When we do, we will revise the "Last Updated" date at the top of this page. If the changes are significant, we may notify you via an in-app notice or an update note in the Google Play Store listing.

We encourage you to review this policy periodically. Your continued use of CrackIn30 after any changes constitutes your acceptance of the updated policy.

11 Contact Us