Equation Encyclopedia
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About this app
Master 3,000+ Formulas, 170+ Expert Study Guides, and AI Study Tools
Equation Encyclopedia brings AP, SAT, ACT, college, 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 AP, college-prep, and university pathways
- Coverage mapped across College Board (AP), Common Core, Next Generation Science Standards (NGSS), IB, Cambridge, and broader US and international systems
- Interactive formula preview with intuition, derivations, rearrangements, mnemonics, comparisons, and step-by-step practice problem solutions
EXPERT STUDY GUIDES
- 170+ Expert Study 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 study workflows
50+ INTERACTIVE GAMES
- Equation Zillionaire, Solve It, Unit Crunch, Symbol Rush, Formula Run, Equation Sleuth, Logic Linker, 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 now supports typing, uploading handwriting, or drawing equations before sending them through Store AI
- Progress is stronger with 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
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 new 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
AP, SAT, ACT, college students, finance professionals, developers, Excel users, and independent learners
UI available in English plus 17 translated languages. Deeper formula, calculator, Excel, coding, and study content is localized across 10 translated data languages.
PLANS
- Free: full library access, sample Expert Study Guides, games, and reference tools
- Plus: $6.99/month or $49.99/year for unlimited saves, full Expert Study Guide access, create tools, exports, and ad-free study
- Pro: $10.99/month or $99.99/year for everything in Plus plus AI Mentor, Image Scanner, AI study workflows, and advanced creation tools
- Ultra: $17.99/month or $149.99/year for everything in Pro plus the highest AI priority and heavier daily AI usage
Zero ads on all paid plans.
Terms of Use: https://equationencyclopedia.com/terms
Privacy Policy: https://equationencyclopedia.com/privacy
About Us: https://equationencyclopedia.com/about
Idea illustrations by Storyset
Equation Encyclopedia brings AP, SAT, ACT, college, 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 AP, college-prep, and university pathways
- Coverage mapped across College Board (AP), Common Core, Next Generation Science Standards (NGSS), IB, Cambridge, and broader US and international systems
- Interactive formula preview with intuition, derivations, rearrangements, mnemonics, comparisons, and step-by-step practice problem solutions
EXPERT STUDY GUIDES
- 170+ Expert Study 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 study workflows
50+ INTERACTIVE GAMES
- Equation Zillionaire, Solve It, Unit Crunch, Symbol Rush, Formula Run, Equation Sleuth, Logic Linker, 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 now supports typing, uploading handwriting, or drawing equations before sending them through Store AI
- Progress is stronger with 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
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 new 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
AP, SAT, ACT, college students, finance professionals, developers, Excel users, and independent learners
UI available in English plus 17 translated languages. Deeper formula, calculator, Excel, coding, and study content is localized across 10 translated data languages.
PLANS
- Free: full library access, sample Expert Study Guides, games, and reference tools
- Plus: $6.99/month or $49.99/year for unlimited saves, full Expert Study Guide access, create tools, exports, and ad-free study
- Pro: $10.99/month or $99.99/year for everything in Plus plus AI Mentor, Image Scanner, AI study workflows, and advanced creation tools
- Ultra: $17.99/month or $149.99/year for everything in Pro plus the highest AI priority and heavier daily AI usage
Zero ads on all paid plans.
Terms of Use: https://equationencyclopedia.com/terms
Privacy Policy: https://equationencyclopedia.com/privacy
About Us: https://equationencyclopedia.com/about
Idea illustrations by Storyset
Updated on
Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
What’s new
- New Workbench page — a dedicated hub for deep equation exploration with interactive rearrangement, algebraic sandbox, dimensional analysis, insights, and historical context all in one place
- My Calculators — build, save, and share your own custom formula calculators directly in the app, with community submission built in
- My Calculators — build, save, and share your own custom formula calculators directly in the app, with community submission built in
App support
About the developer
Samuel Adeyiga
equationencyclopedia@mail.com
47, Conant House
Saint Agnes Place
LONDON
SE11 4AY
United Kingdom