Showing 1–20 of 1,000 ranked alternatives.
Zhijin Chen
Explore elements, formulas, and reactions
Access the periodic table with atomic weight, electronegativity, electron affinity, ionization energy, radius, and isotopes. Compare element properties. Search for compounds and reactions. View chemical equations and formulas.
PROFESSIONAL LABORATORIES, INC
Test samples for mold, radon, lead, allergens,
Schedule and track environmental tests for mold, radon, lead, and more. Upload lab samples and view test results. Receive expert analysis and guidance. Manage orders and contact support directly.
Apple Inc.
Browse sites, translate pages, sync tabs
Browse the web with fast performance and privacy features. Sync bookmarks, passwords, and tabs across devices. Use Private Browsing to avoid history tracking. Enable Intelligent Tracking Prevention to block website trackers.
Pentair Water Pool and Spa, Inc
Control pool and spa devices remotely
Monitor pool and spa status remotely or locally. Control heaters, lights, pumps, and waterfalls. Set schedules for automation. Check water chemistry levels and adjust settings as needed. Receive alerts for system status and maintenance reminders.
Myriad Sensors, Inc.
Collect data, analyze results, learn science
Sensors connect to iOS devices via a single button for real-time data streaming. Users can record and view measurements during experiments.
ACApplications, LLC
Ask questions, get instant answers
Ask questions and receive explanations and answers using AI-powered tools. Access GPT-5, Gemini, and Claude for problem-solving. View real-time voice responses. Share conversations with friends.
INTSIG PTE. LTD.
Solve problems and get instant feedback
Scan math, chemistry, biology, and physics problems to get instant solutions. Review step-by-step explanations. Save and organize solved problems. Set reminders for study sessions. Sync progress across devices.
铠宁 雷
Calculate molecular weight instantly
Calculate molecular weights with a dedicated organic chemistry calculator. Long-press elements for details. Input elements, numbers, and parentheses for real-time results. Access a full-sized periodic table with combined periods 1, 2, and 3.
Carolina Biological Supply
Formulas and track progress
Naming and writing formulas for ionic and molecular compounds, acids, bases, polyatomic ions, hydrocarbons, and organic functional groups. Choose between -to-name or name-to- exercises. Track progress and repeat exercises for reinforcement.
Planbook Inc.
Is a lesson planning tool that lets
Create and manage lesson plans with customizable templates, track student progress, and align lessons with learning standards. Organize classes, assign tasks, and access tutorials and support resources.
Nguyen Thi Hoai Thu
Learn with audio lessons and transcripts
Learn through audio lessons with transcripts and vocabulary lists. Practice with American conversations. Access offline exercises and study materials. Track progress with built-in quizzes and vocabulary reviews.
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