Periodic table tool vs BlurBefore

Periodic Table - Your Interactive Chemistry Companion Master the elements with the most comprehensive and beautifully designed periodic table app. Whether you are a student preparing for exams, a teacher looking for classroom resources, or simply curious about chemistry, this app makes learning engaging and effective. Explore all 118 chemical elements with detailed information at your fingertips. Each element profile includes atomic mass, electron configuration, electronegativity, melting and boiling points, oxidation states, discovery history, and real-world applications. Key Features: Interactive Periodic Table Browse the complete periodic table with color-coded element categories. Tap any element to instantly access its detailed profile. Search by name, symbol, or atomic number to find elements quickly. Smart Learning Tools Track your mastery progress across all 118 elements. Mark elements as Not Learned, Learning, or Mastered to build your personalized study plan. Four Training Modes Reinforce your knowledge through diverse practice methods: - Flashcards: Flip cards to test your memory and mark mastery levels - Fill in the Blank: Complete key information to strengthen deep memory - Matching Game: Drag and drop to improve reaction speed - Weak Point Drill: Focused practice on element families you find challenging Quiz Challenge Test your knowledge with leveled quizzes. Progress through Basics, Main Group Elements, Transition Metals, Lanthanides & Actinides, and ultimately the Full Challenge with 20 questions covering all elements. Study Streaks & Achievements Stay motivated with daily study reminders and achievement badges. Build your study streak and unlock rewards as you progress from beginner scholar to Periodic King.Completely Offline All element data and features work without an internet connection. Study anywhere, anytime. Start your journey to chemical mastery today!

BlurBefore — redact sensitive info before you share. Posting a chat screenshot, parcel label, or ID photo? Phone numbers, ID numbers, and home addresses slip out with your image. BlurBefore finds and covers them automatically — before you share. KEY FEATURES • Smart detection: auto-finds phone numbers, ID numbers, addresses & bank cards • 3 redact styles: blur, pixelate, or solid cover — adjustable intensity • Share sheet built-in: redact right from the iOS share sheet, no app switching • Fully on-device: nothing uploaded, no account, no tracking • One-tap save to Photos or share anywhere USE IT FOR • Chat screenshots: hide phone numbers and account details • Parcel labels: cover names, numbers and addresses • ID photos: redact ID numbers and faces • Cars: blur license plates • Before posting: strip EXIF such as location PRIVACY PROMISE Everything runs on your device. No uploads, no accounts, no data collection. GO PRO The free version includes all redaction tools with a watermark on export. A one-time purchase removes the watermark, or unlocks advanced detection (faces, QR codes, bank cards, addresses) and EXIF removal. Buy once, keep forever — no subscription. -Privacy Policy: https://docs.qq.com/doc/p/a1de546661e60c87d3c86aa9abf0dc549f2141f2 Support: sunjun20141@qq.com