Comparison

Speed Trigonometry vs ReCalculus

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

Head to head
About

Speed Trigonometry

This app helps students quickly memorize the unit circle. It quizzes users on sine, cosine, tangent, and inverse trigonometric values for key angles. Developed by students for students, it's ideal for precalculus learners.

Highlights
  • Unit circle memorization
  • Quizzes on trig values
  • Focus on key angles
  • Sine, cosine, tangent, inverse values
  • Student-developed
Features
Read full description

Speed Trig is the #1 app for memorizing the unit circle fast. Designed for students enrolled in Precalculus, the app quizzes you on the sine, cosine, tangent, and inverse trig values of the four main unit circle angles: π/2, π/3, π/4, and π/6. Our app was made by students, for students.

About

ReCalculus

Read full description

ReCalculus – Your Simple Tool for Memorizing Calculus Formulas If you find it hard to memorize all the important calculus formulas for school or exams, ReCalculus is made for you. This app has just one goal: to help you remember all the calculus-related formulas you need—nothing more, nothing less. Whether it’s derivatives, integrals, trigonometric identities, or logarithmic rules, ReCalculus gives you the key formulas in a clean, simple, and distraction-free way. No complex features. No extra steps. Just the formulas you need to memorize, and interactive ways to review them until you’re confident. What Does This App Do? Only one thing: It helps you memorize calculus formulas. That’s it! No complicated lessons. No step-by-step problem solving. No solving equations or graphing functions. Just focused practice to help you master the formulas for calculus. How Does It Work? Cheat Sheets: Instantly see all the essential formulas for derivatives, integrals, trigonometric and inverse trigonometric functions, and logarithms. Every formula is organized for quick visual memory. Practice Quizzes: Test your ability to recall each formula with multiple-choice questions. Select the correct formula and get instant feedback to reinforce your memory. Simple and Clean Interface: Easy navigation. No clutter. No distractions. The app is designed to make formula memorization as fast and easy as possible. No Ads, No Sign-up: Focus on studying without the need to create an account. Who Is This App For? High school and college students who need to memorize calculus formulas for exams like AP Calculus, IB, A-Levels, SAT Math, or university entrance tests. Anyone who wants a fast, effective way to review and memorize formulas before class or tests. Teachers and tutors who want to provide students with a formula-focused study tool. Anyone who wants to boost their formula recall skills—without any extra features getting in the way. What You WON’T Find in This App No calculators, graphing tools, or equation solvers. No videos or step-by-step lessons. No chatbots, AI tutors, or homework help. No ads or in-app purchases. No distractions. Why Memorize Formulas with ReCalculus? Memorizing formulas is often one of the hardest parts of learning calculus. With ReCalculus, you can practice recalling formulas until you remember them easily. This will help you: Save time during tests Feel more confident in class Reduce exam anxiety Build a strong foundation for future math studies Repetition is key! The app lets you test yourself as many times as you need until the formulas stick in your memory. Privacy & Safety No personal data is collected. No analytics, ads, or hidden tracking. All your practice happens locally on your device. Ready to Master Your Calculus Formulas? Download ReCalculus now and start memorizing the formulas you need for calculus success. No extra features. No distractions. Just formulas. ReCalculus – Memorize. Practice. Succeed.

Screenshots

Speed Trigonometry3 screens
ReCalculus4 screens

Verdict

The call

The clearest difference is iOS requirement: ReCalculus at 16.6 against Speed Trigonometry's 18.5. On price, ads, in-app purchases and device support there is nothing between them.

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Scorecard1 real difference · 9 level
Speed Trigonometry versus ReCalculus: the parameters behind the verdict, then further details
ParameterSpeed TrigonometryReCalculus
PriceFreeFree
Rating4.8 (5 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings5 — better—
Update frequencyEvery 14 months—
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPadiPhone, iPad
Requires iOS18.516.6 — better
Further details — not scored
Size2 MB48 MB
Age rating4+4+
DeveloperNick PetroniSupparsorn Wantarnagon

In-app purchases

None

Speed Trigonometry

No in-app purchases

None

ReCalculus

No in-app purchases

Questions

Is Speed Trigonometry free?
Speed Trigonometry is free to download, with no in-app purchases.
Is ReCalculus free?
ReCalculus is free to download, with no in-app purchases.
Do Speed Trigonometry or ReCalculus have ads?
Neither Speed Trigonometry nor ReCalculus shows ads.

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