Equation Encyclopedia

Never forget a formula again. Master 3,000+ equations with interactive previews, expert revision guides, 50+ fun games & powerful AI tools. Study smarter, anywhere.

Master 3,000+ Formulas, 170+ Expert Revision Guides, and AI Study Tools

Equation Encyclopedia brings GCSE, A-Level, IB, AP, university, and professional study into one app. Search 3,000+ formulas across Mathematics, Physics, Chemistry, Biology, Engineering, Finance, Geography, Medicine, Computing, Geology, Psychology, Economics, Sociology, and Quantum Computing, with offline access after login.

FORMULA LIBRARY

• 3,000+ formulas across GCSE, A-Level, IB, AP, and university pathways
• Coverage mapped across AQA, Edexcel, OCR, WJEC/Eduqas, Cambridge, IB, AP, and broader UK, US, and international systems
• Interactive formula preview with intuition, derivations, rearrangements, mnemonics, comparisons, and step-by-step practice problem solutions

EXPERT REVISION GUIDES

• 170+ Expert Revision Guides built from formulas, derivations, rearrangements, mnemonics, intuition, history, and practice
• 3 free sample guides on the free plan, with the full guide library available on paid plans
• Extra spreadsheet, coding, and reference study packs for broader revision workflows

50+ INTERACTIVE GAMES

• Equation Zillionaire, Solve It, Unit Crunch, Symbol Rush, Formula Run, Equation Sleuth, Logic Linker, Gravity Well, and more
• XP levels, daily streaks, achievement badges, and global leaderboards

AI-POWERED TOOLS

• AI Equation Mentor to explain, rearrange, and solve formulas step by step
• AI Image Scanner to identify equations from photos
• AI Study Tool, AI guide generation, and AI-assisted calculator building
• AI spreadsheet and coding explainers for practical problem solving

CREATE, PROGRESS, AND SCIENTISTS

• Create page supports typing, uploading handwriting, or drawing equations before sending them through Store AI
• Progress includes Equation Skill Check, weak-equation analytics, subject insights, and next-best-study actions
• Separate scientist experiences: collect 100 scientist cards in Scientist Collection, then explore 800+ scientists on the broader Scientists Page
• Expanded discovery pages, including Timeline and Wiki coverage, for richer browsing across topics and people

REFERENCE AND LIFESTYLE TOOLS

• Full Periodic Table, Physical Constants, Unit Conversions, Greek Alphabet, and Math Rules
• 468+ Did You Know facts and equation-linked historical context
• 6 lifestyle and finance calculators: Salary Cost-of-Living Adjuster, Portfolio Growth Planner, Mortgage Cost Planner, Rent vs Buy Comparator, Emergency Fund Planner, and Budget Split Planner

PERFECT FOR GCSE, A-Level, IB, AP, university, finance professionals, developers, Excel users, and independent learners

Available in 17 languages: English, Spanish, French, German, Italian, Portuguese, Chinese, Japanese, Korean, Hindi, Russian, Arabic, Dutch, Polish, Turkish, Swedish, Urdu, and Greek.

PLANS

• Free: full library access, sample Expert Revision Guides, games, and reference tools
• Plus: GBP 5.99/month for unlimited saves, full Expert Revision Guide access, create tools, exports, and ad-free study
• Pro: GBP 9.99/month for everything in Plus plus AI Mentor, Image Scanner, AI study workflows, and advanced creation tools
• Ultra: GBP 14.99/month for everything in Pro plus the highest AI priority and heavier daily AI usage

Zero ads on all paid plans.

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