Support

No. The entire command database (3,500+ entries) is bundled with the app and works fully offline. An internet connection is only used by Analytics, Crashlytics, and AdMob — none of which affect core functionality.

All bookmarks, search history, and preferences are stored locally on your device. This data is never uploaded to any server. Clearing the app's storage in your device settings will remove them.

Open the app, tap the Settings icon, and select from 7 themes: Catppuccin, Dracula, Nord, Gruvbox, Solarized, One Dark, and Tokyo Night. Your selection is saved automatically.

Tap the search icon at the top of the app. You can search by command name, description, syntax, or options. Your last 15 queries are saved locally for quick re-access.

Tap any command card to expand it, then tap the copy icon next to the syntax or examples. The text goes straight to your clipboard.

Make sure you're on the latest version from Google Play. If the issue persists, clear the app's cache in device settings. If it still crashes, contact us — include your device model, Android version, and what triggers the crash.

No. AI games, local pass-and-play, and preferences work fully offline. An internet connection is only needed for online multiplayer, leaderboards, sign-in, analytics, crash reporting, and ads.

When you open the app you're signed in to Firebase anonymously — no email or password required. You choose a username (3–20 characters). This is needed for online play and leaderboards only. You can request data deletion at any time via the Privacy Policy.

Nine variants: Kenyan, Brazilian, International (10×10), Russian, Spanish/Czech, Italian, Thai, Turkish Dama, and Suicide. Each has correct rules.

10 AI tiers from Novice to Grandmaster. Level 1 is free. Tiers 2–10 unlock with the premium upgrade (lifetime or per-tier), available via Google Play Billing.

Match results are finalized by a server-side Cloud Function — not by the client — so scores can't be tampered with on-device. Both players' reports must agree for a result to count.

Crash reports are automatically sent via Firebase Crashlytics. To help further, contact us with your device model, Android version, app version, and the steps before the crash.

No. All calculations, the formula library, history, and settings work fully offline. An internet connection is only used by Firebase Analytics and Crashlytics for anonymous usage stats and crash reports.

All history is stored locally on your device in a SQLite database. It is never uploaded to any server. You can clear your history at any time from the History screen.

WeltekxCalc covers arithmetic, scientific functions, algebra, calculus, matrices, statistics, financial maths, CS maths, discrete maths, and built-in physics constants. The formula library includes 96 searchable formulas across 8 categories.

Open the App, tap the Settings icon, and choose from 5 themes: Light, Dark, Amoled Black, High Contrast, and Solarized. Your selection is saved automatically.

Crash reports are sent automatically via Firebase Crashlytics. If the issue persists, try clearing the App’s cache in your device settings. If it still crashes, contact us with your device model, Android version, and the steps before the crash.

No. All editing, notes, sticky notes, themes, and settings work fully offline. An internet connection is only used by Firebase Analytics and Crashlytics for anonymous usage stats and crash reports.

All notes, documents, and sticky notes are stored locally on your device in a SQLite database. They are never uploaded to any server. Your data stays on your device.

Notes supports 20+ formats including .txt, .md, .html, .json, .csv, .py, .java, .kt, .js, .ts, .css, .php, .sql, .sh, .yaml, .toml, and .ini. The App auto-detects the file type from the extension.

Sticky notes are draggable, resizable note cards on a canvas. They come in 7 frame styles, 10 colours, and support 60 stickers from 6 categories. You can archive notes you no longer need.

Open the App, navigate to Settings, and choose from 5 professional themes: Executive Office, Midnight Professional, Forest Scholar, Minimal Light, and Royal Gold. Each has light and dark variants.

Crash reports are sent automatically via Firebase Crashlytics. If the issue persists, try clearing the App’s cache in your device settings. If it still crashes, contact us with your device model, Android version, and the steps before the crash.