Privacy
A plain summary of what each app does with your data. Each app also has a full privacy policy, linked below. That policy is the binding version, and if the two ever disagree, the full policy wins.
The short version
- We don't sell personal data.
- When an app can work without a server, it keeps your data on your phone.
- The free apps show ads from Google AdMob. Where the law requires it, the app asks for your consent first. You can turn off personalised ads in Android settings → Google → Ads.
- Some apps use Google Firebase for crash reports and basic usage statistics, so we can find and fix bugs.
- Google Play handles all purchases. We never see your card details.
App by app
| SmartBlock | Your contacts, call history and messages are processed on the phone and are not uploaded. If you turn on the community spam list, the app downloads number-reputation data from our server. Ads are served by Google AdMob, with a consent prompt where the law requires one. SmartBlock uses Android's call-screening role, so it doesn't need call-log permission. Full policy |
|---|---|
| PrivatraVPN | Under its privacy policy, PrivatraVPN doesn't log the sites you visit through the tunnel. The app uses Firebase Analytics and Remote Config to track crashes and feature use, and Google AdMob for ads in the free version. Purchases go through Google Play Billing. The full policy is on privatravpn.app. Full policy |
| Cycylr | Your cycle log is stored on your phone, and Cycylr has no account system. The free version shows ads from Google AdMob. Uninstalling the app, or clearing its data in Android settings, removes your log. Full policy |
| ModbusBB | Your Modbus data, device addresses and workspaces stay on the phone. The free version uses Google AdMob, and Firebase collects crash logs and basic app-usage events. ModbusBB does not collect your location or contacts. Full policy |
| XOClash | For online matches, XOClash stores a guest account ID and your game progress on our server, plus your Play Games ID if you sign in. Ads are served by Google AdMob, with a consent prompt where required. To delete your account and progress, email us. Full policy |
| Stack Tower | Solo play keeps your progress on the phone. For PvP and cloud save, Stack Tower creates a guest account and stores your progress and purchases on our server, plus your Play Games ID if you sign in. Ads are served by Google AdMob. Full policy |
| Last Text | Without an account, Last Text uses an install ID and a push token to deliver stories and notifications. If you create an account, it also stores your email, name and avatar. Ads are served by Google AdMob. You can delete your account at any time at lasttext.maxenergic.com/delete-account. Full policy |
Your choices
Delete data on your phone: uninstall the app, or go to Android Settings → Apps → the app → Storage → Clear data.
Delete an online account: use the in-app delete option where there is one, or email support@maxenergic.com from the address linked to your account.
Ask what we hold: email us, and we'll tell you what, if anything, our servers store about you.
Children
Our apps aren't designed for children under 13, and we don't knowingly collect personal information from them. If you think a child has given us personal data, email us and we'll delete it.
This website
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Last updated 17 Oct 2026. Questions: support@maxenergic.com.