🔢 Convert between decimal, octal, binary, and hex ⚙️ Perform arithmetic in base-8 🧠 Test your number system knowledge with quizzes 📁 Lightweight APK – no unnecessary permissions
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⬇️ from [your link here] ⚠️ Enable "Install from unknown sources" in settings if needed. 🔢 Convert between decimal, octal, binary, and hex
