Comparison

Calculus Formulas vs Electron Flow

Price, ratings, monetisation and update history for both apps, side by side โ€” with what reviewers say about each.

Head to head
About

Calculus Formulas

Features
Read full description

CalcRef is the complete calculus reference and study tool built for students. Whether you are preparing for AP Calculus, college exams, or reviewing core concepts, CalcRef puts every formula, table, and practice tool you need in one offline app. FORMULAS Browse over 100 calculus formulas across 8 topics: Limits and Continuity, Derivatives, Applications of Derivatives, Integrals, Techniques of Integration, Applications of Integrals, Sequences and Series, and Parametric, Polar, and Vectors. Every formula includes LaTeX-rendered notation, a plain-language description, conditions for use, and variable definitions. Computational formulas include a built-in calculator with step-by-step solutions. REFERENCE TABLES Six tables provide instant access to the essentials: - Derivative Rules (power, trig, exponential, logarithmic, inverse trig) - Integral Formulas (standard antiderivatives with conditions) - Trigonometric Identities (Pythagorean, double angle, half angle, sum/difference) - Convergence Tests (ratio, root, integral, comparison, alternating series) - Maclaurin Series (common expansions with convergence intervals) - Unit Circle (sin, cos, tan at standard angles in degrees and radians) PRACTICE Test your knowledge with flashcard-style quizzes. Each round presents 10 cards from a chosen topic or a mix of all topics. Flip to reveal each formula, mark it correct or missed, and review your score. Track your progress over time with per-topic stats and quiz history. TOOLS A unit converter covering 16 categories (length, area, volume, mass, force, pressure, temperature, energy, power, velocity, acceleration, density, viscosity, torque, flow rate, and angle) is accessible from any screen. A database of mathematical constants provides precise values for pi, e, the golden ratio, and more. BUILT FOR STUDYING Bookmark formulas to Favorites for quick access. Search finds any formula or constant as you type. Calculation history logs every result. Create and save your own custom formulas. Choose dark or light theme, set decimal precision, and toggle scientific notation. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Electron Flow

Read full description

Stop memorizing formulas. Start feeling the flow. Visualize invisible electrons through Liquid Glass UI and master KCL/KVL with Socratic AI guidance.

Screenshots

Calculus Formulas4 screens
Electron Flow4 screens

Verdict

The call

The clearest difference is in-app purchases: Electron Flow at none against Calculus Formulas's 3. Calculus Formulas's advantage is iOS requirement (15.1 vs 17.0). On price, ads and device support there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Calculus Formulas sells 3 in-app purchases, starting at $4.99 per 7 days. Electron Flow asks for nothing beyond the download.

Scorecard2 real differences ยท 3 level
Calculus Formulas versus Electron Flow: the parameters behind the verdict, then further details
ParameterCalculus FormulasElectron Flow
PriceFreeFree
AdsNoNo
In-app purchasesYesNo โ€” better
DevicesiPhone, iPad, iPod โ€” betteriPhone, iPad
Requires iOS15.1 โ€” better17.0
Further details โ€” not scored
Size48 MB6 MB
Age rating4+4+
DeveloperMobin AkhterHANZ WONG

In-app purchases

3 purchases

Calculus Formulas

Subscriptions2
  • Weekly Premium$4.997 Days
  • CalcRef Yearly Premium$44.991 Year
One-time1
  • CalcRef Premium Lifetime$74.99
None

Electron Flow

No in-app purchases

Questions

Is Calculus Formulas free?
Calculus Formulas is free to download, with in-app purchases available.
Is Electron Flow free?
Electron Flow is free to download, with no in-app purchases.
Do Calculus Formulas or Electron Flow have ads?
Neither Calculus Formulas nor Electron Flow shows ads.

Other comparisons